{"id":169,"date":"2009-07-12T14:41:00","date_gmt":"2009-07-12T06:41:00","guid":{"rendered":"http:\/\/gsakd878.wordpress.com\/2009\/07\/12\/%e9%ab%98%e8%b4%a8%e9%87%8fc%e6%95%99%e7%a8%8b-%e7%ac%ac8%e7%ab%a0-c%e5%87%bd%e6%95%b0%e7%9a%84%e9%ab%98%e7%ba%a7%e7%89%b9%e6%80%a7"},"modified":"2009-07-12T14:41:00","modified_gmt":"2009-07-12T06:41:00","slug":"%e9%ab%98%e8%b4%a8%e9%87%8fc%e6%95%99%e7%a8%8b-%e7%ac%ac8%e7%ab%a0-c%e5%87%bd%e6%95%b0%e7%9a%84%e9%ab%98%e7%ba%a7%e7%89%b9%e6%80%a7","status":"publish","type":"post","link":"https:\/\/www.keyboardmeow.com\/?p=169","title":{"rendered":"\u9ad8\u8d28\u91cfC++\u6559\u7a0b — \u7b2c8\u7ae0 C++\u51fd\u6570\u7684\u9ad8\u7ea7\u7279\u6027"},"content":{"rendered":"
\u9ad8\u8d28\u91cfC++\u6559\u7a0b -- \u7b2c8\u7ae0 C++\u51fd\u6570\u7684\u9ad8\u7ea7\u7279\u6027<\/span><\/div>\n
\n\u6765\u6e90:www.vcworld.net<\/font><\/a>\u3000<\/div>\n
\n

\u5bf9\u6bd4\u4e8eC\u8bed\u8a00\u7684\u51fd\u6570\uff0cC++\u589e\u52a0\u4e86\u91cd\u8f7d\uff08overloaded\uff09\u3001\u5185\u8054\uff08inline\uff09\u3001const\u548cvirtual\u56db\u79cd\u65b0\u673a\u5236\u3002\u5176\u4e2d\u91cd\u8f7d\u548c\u5185\u8054\u673a\u5236\u65e2\u53ef\u7528\u4e8e\u5168\u5c40\u51fd\u6570\u4e5f\u53ef\u7528\u4e8e\u7c7b\u7684\u6210\u5458\u51fd\u6570\uff0cconst\u4e0evirtual\u673a\u5236\u4ec5\u7528\u4e8e\u7c7b\u7684\u6210\u5458\u51fd\u6570\u3002<\/span><\/p>\n

\n\u91cd\u8f7d\u548c\u5185\u8054\u80af\u5b9a\u6709\u5176\u597d\u5904\u624d\u4f1a\u88abC++\u8bed\u8a00\u91c7\u7eb3\uff0c\u4f46\u662f\u4e0d\u53ef\u4ee5\u5f53\u6210\u514d\u8d39\u7684\u5348\u9910\u800c\u6ee5\u7528\u3002\u672c\u7ae0\u5c06\u63a2\u7a76\u91cd\u8f7d\u548c\u5185\u8054\u7684\u4f18\u70b9\u4e0e\u5c40\u9650\u6027\uff0c\u8bf4\u660e\u4ec0\u4e48\u60c5\u51b5\u4e0b\u5e94\u8be5\u91c7\u7528\u3001\u4e0d\u8be5\u91c7\u7528\u4ee5\u53ca\u8981\u8b66\u60d5\u9519\u7528\u3002<\/p>\n

8.1 \u51fd\u6570\u91cd\u8f7d\u7684\u6982\u5ff5<\/font><\/strong><\/p>\n

8.1.1 \u91cd\u8f7d\u7684\u8d77\u6e90<\/strong><\/p>\n

\n\u81ea\u7136\u8bed\u8a00\u4e2d\uff0c\u4e00\u4e2a\u8bcd\u53ef\u4ee5\u6709\u8bb8\u591a\u4e0d\u540c\u7684\u542b\u4e49\uff0c\u5373\u8be5\u8bcd\u88ab\u91cd\u8f7d\u4e86\u3002\u4eba\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e0a\u4e0b\u6587\u6765\u5224\u65ad\u8be5\u8bcd\u5230\u5e95\u662f\u54ea\u79cd\u542b\u4e49\u3002\u201c\u8bcd\u7684\u91cd\u8f7d\u201d\u53ef\u4ee5\u4f7f\u8bed\u8a00\u66f4\u52a0\u7b80\u7ec3\u3002\u4f8b\u5982\u201c\u5403\u996d\u201d\u7684\u542b\u4e49\u5341\u5206\u5e7f\u6cdb\uff0c\u4eba\u4eec\u6ca1\u6709\u5fc5\u8981\u6bcf\u6b21\u975e\u5f97\u8bf4\u6e05\u695a\u5177\u4f53\u5403\u4ec0\u4e48\u4e0d\u53ef\u3002\u522b\u8fc2\u8150\u5f97\u8c61\u5b54\u5df2\u5df1\uff0c\u8bf4\u8334\u9999\u8c46\u7684\u8334\u5b57\u6709\u56db\u79cd\u5199\u6cd5\u3002<\/p>\n

\n\u5728C++\u7a0b\u5e8f\u4e2d\uff0c\u53ef\u4ee5\u5c06\u8bed\u4e49\u3001\u529f\u80fd\u76f8\u4f3c\u7684\u51e0\u4e2a\u51fd\u6570\u7528\u540c\u4e00\u4e2a\u540d\u5b57\u8868\u793a\uff0c\u5373\u51fd\u6570\u91cd\u8f7d\u3002\u8fd9\u6837\u4fbf\u4e8e\u8bb0\u5fc6\uff0c\u63d0\u9ad8\u4e86\u51fd\u6570\u7684\u6613\u7528\u6027\uff0c\u8fd9\u662fC++\u8bed\u8a00\u91c7\u7528\u91cd\u8f7d\u673a\u5236\u7684\u4e00\u4e2a\u7406\u7531\u3002\u4f8b\u5982\u793a\u4f8b8-1-1\u4e2d\u7684\u51fd\u6570EatBeef,EatFish,EatChicken\u53ef\u4ee5\u7528\u540c\u4e00\u4e2a\u51fd\u6570\u540dEat\u8868\u793a\uff0c\u7528\u4e0d\u540c\u7c7b\u578b\u7684\u53c2\u6570\u52a0\u4ee5\u533a\u522b\u3002<\/p>\n\n\n\n
\n

void EatBeef(\u2026); \/\/ \u53ef\u4ee5\u6539\u4e3a void Eat(Beef \u2026);<\/p>\n

void EatFish(\u2026); \/\/ \u53ef\u4ee5\u6539\u4e3a void Eat(Fish \u2026);<\/p>\n

void EatChicken(\u2026); \/\/ \u53ef\u4ee5\u6539\u4e3a void Eat(Chicken \u2026);<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u793a\u4f8b8-1-1 \u91cd\u8f7d\u51fd\u6570Eat<\/p>\n

\nC++\u8bed\u8a00\u91c7\u7528\u91cd\u8f7d\u673a\u5236\u7684\u53e6\u4e00\u4e2a\u7406\u7531\u662f\uff1a\u7c7b\u7684\u6784\u9020\u51fd\u6570\u9700\u8981\u91cd\u8f7d\u673a\u5236\u3002\u56e0\u4e3aC++\u89c4\u5b9a\u6784\u9020\u51fd\u6570\u4e0e\u7c7b\u540c\u540d\uff08\u8bf7\u53c2\u89c1\u7b2c9\u7ae0\uff09\uff0c\u6784\u9020\u51fd\u6570\u53ea\u80fd\u6709\u4e00\u4e2a\u540d\u5b57\u3002\u5982\u679c\u60f3\u7528\u51e0\u79cd\u4e0d\u540c\u7684\u65b9\u6cd5\u521b\u5efa\u5bf9\u8c61\u8be5\u600e\u4e48\u529e\uff1f\u522b\u65e0\u9009\u62e9\uff0c\u53ea\u80fd\u7528\u91cd\u8f7d\u673a\u5236\u6765\u5b9e\u73b0\u3002\u6240\u4ee5\u7c7b\u53ef\u4ee5\u6709\u591a\u4e2a\u540c\u540d\u7684\u6784\u9020\u51fd\u6570\u3002<\/p>\n

8.1.2 \u91cd\u8f7d\u662f\u5982\u4f55\u5b9e\u73b0\u7684\uff1f<\/strong><\/p>\n

\u51e0\u4e2a\u540c\u540d\u7684\u91cd\u8f7d\u51fd\u6570\u4ecd\u7136\u662f\u4e0d\u540c\u7684\u51fd\u6570\uff0c\u5b83\u4eec\u662f\u5982\u4f55\u533a\u5206\u7684\u5462\uff1f\u6211\u4eec\u81ea\u7136\u60f3\u5230\u51fd\u6570\u63a5\u53e3\u7684\u4e24\u4e2a\u8981\u7d20\uff1a\u53c2\u6570\u4e0e\u8fd4\u56de\u503c\u3002<\/p>\n

\u5982\u679c\u540c\u540d\u51fd\u6570\u7684\u53c2\u6570\u4e0d\u540c\uff08\u5305\u62ec\u7c7b\u578b\u3001\u987a\u5e8f\u4e0d\u540c\uff09\uff0c\u90a3\u4e48\u5bb9\u6613\u533a\u522b\u51fa\u5b83\u4eec\u662f\u4e0d\u540c\u7684\u51fd\u6570\u3002<\/p>\n

\u5982\u679c\u540c\u540d\u51fd\u6570\u4ec5\u4ec5\u662f\u8fd4\u56de\u503c\u7c7b\u578b\u4e0d\u540c\uff0c\u6709\u65f6\u53ef\u4ee5\u533a\u5206\uff0c\u6709\u65f6\u5374\u4e0d\u80fd\u3002\u4f8b\u5982\uff1a<\/p>\n

void Function(void);<\/p>\n

int Function (void);<\/p>\n

\u4e0a\u8ff0\u4e24\u4e2a\u51fd\u6570\uff0c\u7b2c\u4e00\u4e2a\u6ca1\u6709\u8fd4\u56de\u503c\uff0c\u7b2c\u4e8c\u4e2a\u7684\u8fd4\u56de\u503c\u662fint\u7c7b\u578b\u3002\u5982\u679c\u8fd9\u6837\u8c03\u7528\u51fd\u6570\uff1a<\/p>\n

int x = Function ();<\/p>\n

\n\u5219\u53ef\u4ee5\u5224\u65ad\u51faFunction\u662f\u7b2c\u4e8c\u4e2a\u51fd\u6570\u3002\u95ee\u9898\u662f\u5728C++\/C\u7a0b\u5e8f\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u5ffd\u7565\u51fd\u6570\u7684\u8fd4\u56de\u503c\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u7f16\u8bd1\u5668\u548c\u7a0b\u5e8f\u5458\u90fd\u4e0d\u77e5\u9053\u54ea\u4e2aFunction\u51fd\u6570\u88ab\u8c03\u7528\u3002<\/p>\n

\n\u6240\u4ee5\u53ea\u80fd\u9760\u53c2\u6570\u800c\u4e0d\u80fd\u9760\u8fd4\u56de\u503c\u7c7b\u578b\u7684\u4e0d\u540c\u6765\u533a\u5206\u91cd\u8f7d\u51fd\u6570\u3002\u7f16\u8bd1\u5668\u6839\u636e\u53c2\u6570\u4e3a\u6bcf\u4e2a\u91cd\u8f7d\u51fd\u6570\u4ea7\u751f\u4e0d\u540c\u7684\u5185\u90e8\u6807\u8bc6\u7b26\u3002\u4f8b\u5982\u7f16\u8bd1\u5668\u4e3a\u793a\u4f8b8-1-1\u4e2d\u7684\u4e09\u4e2aEat\u51fd\u6570\u4ea7\u751f\u8c61_eat_beef\u3001_eat_fish\u3001_eat_chicken\u4e4b\u7c7b\u7684\u5185\u90e8\u6807\u8bc6\u7b26\uff08\u4e0d\u540c\u7684\u7f16\u8bd1\u5668\u53ef\u80fd\u4ea7\u751f\u4e0d\u540c\u98ce\u683c\u7684\u5185\u90e8\u6807\u8bc6\u7b26\uff09\u3002<\/p>\n

\u5982\u679cC++\u7a0b\u5e8f\u8981\u8c03\u7528\u5df2\u7ecf\u88ab\u7f16\u8bd1\u540e\u7684C\u51fd\u6570\uff0c\u8be5\u600e\u4e48\u529e\uff1f<\/p>\n

\u5047\u8bbe\u67d0\u4e2aC\u51fd\u6570\u7684\u58f0\u660e\u5982\u4e0b\uff1a<\/p>\n

void foo(int x, int y);<\/p>\n

\n\u8be5\u51fd\u6570\u88abC\u7f16\u8bd1\u5668\u7f16\u8bd1\u540e\u5728\u5e93\u4e2d\u7684\u540d\u5b57\u4e3a_foo\uff0c\u800cC++\u7f16\u8bd1\u5668\u5219\u4f1a\u4ea7\u751f\u50cf_foo_int_int\u4e4b\u7c7b\u7684\u540d\u5b57\u7528\u6765\u652f\u6301\u51fd\u6570\u91cd\u8f7d\u548c\u7c7b\u578b\u5b89\u5168\u8fde\u63a5\u3002\u7531\u4e8e\u7f16\u8bd1\u540e\u7684\u540d\u5b57\u4e0d\u540c\uff0cC++\u7a0b\u5e8f\u4e0d\u80fd\u76f4\u63a5\u8c03\u7528C\u51fd\u6570\u3002C++\u63d0\u4f9b\u4e86\u4e00\u4e2aC\u8fde\u63a5\u4ea4\u6362\u6307\u5b9a\u7b26\u53f7extern\u201cC\u201d\u6765\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002\u4f8b\u5982\uff1a<\/p>\n

extern \u201cC\u201d<\/p>\n

{<\/p>\n

void foo(int x, int y);<\/p>\n

\u2026 \/\/ \u5176\u5b83\u51fd\u6570<\/p>\n

}<\/p>\n

\u6216\u8005\u5199\u6210<\/p>\n

extern \u201cC\u201d<\/p>\n

{<\/p>\n

#include \u201cmyheader.h\u201d<\/p>\n

\u2026 \/\/ \u5176\u5b83C\u5934\u6587\u4ef6<\/p>\n

}<\/p>\n

\n\u8fd9\u5c31\u544a\u8bc9C++\u7f16\u8bd1\u8bd1\u5668\uff0c\u51fd\u6570foo\u662f\u4e2aC\u8fde\u63a5\uff0c\u5e94\u8be5\u5230\u5e93\u4e2d\u627e\u540d\u5b57_foo\u800c\u4e0d\u662f\u627e_foo_int_int\u3002C++\u7f16\u8bd1\u5668\u5f00\u53d1\u5546\u5df2\u7ecf\u5bf9C\u6807\u51c6\u5e93\u7684\u5934\u6587\u4ef6\u4f5c\u4e86extern\u201cC\u201d\u5904\u7406\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u7528\uff03include
\n\u76f4\u63a5\u5f15\u7528\u8fd9\u4e9b\u5934\u6587\u4ef6\u3002<\/p>\n

\u6ce8\u610f\u5e76\u4e0d\u662f\u4e24\u4e2a\u51fd\u6570\u7684\u540d\u5b57\u76f8\u540c\u5c31\u80fd\u6784\u6210\u91cd\u8f7d\u3002\u5168\u5c40\u51fd\u6570\u548c\u7c7b\u7684\u6210\u5458\u51fd\u6570\u540c\u540d\u4e0d\u7b97\u91cd\u8f7d\uff0c\u56e0\u4e3a\u51fd\u6570\u7684\u4f5c\u7528\u57df\u4e0d\u540c\u3002\u4f8b\u5982\uff1a<\/p>\n

void Print(\u2026); \/\/ \u5168\u5c40\u51fd\u6570<\/p>\n

class A<\/p>\n

{\u2026<\/p>\n

void Print(\u2026); \/\/ \u6210\u5458\u51fd\u6570<\/p>\n

}<\/p>\n

\n\u4e0d\u8bba\u4e24\u4e2aPrint\u51fd\u6570\u7684\u53c2\u6570\u662f\u5426\u4e0d\u540c\uff0c\u5982\u679c\u7c7b\u7684\u67d0\u4e2a\u6210\u5458\u51fd\u6570\u8981\u8c03\u7528\u5168\u5c40\u51fd\u6570Print\uff0c\u4e3a\u4e86\u4e0e\u6210\u5458\u51fd\u6570Print\u533a\u522b\uff0c\u5168\u5c40\u51fd\u6570\u88ab\u8c03\u7528\u65f6\u5e94\u52a0\u2018::\u2019\u6807\u5fd7\u3002\u5982<\/p>\n

::Print(\u2026); \/\/ \u8868\u793aPrint\u662f\u5168\u5c40\u51fd\u6570\u800c\u975e\u6210\u5458\u51fd\u6570<\/p>\n

\u00a0<\/p>\n

8.1.3 \u5f53\u5fc3\u9690\u5f0f\u7c7b\u578b\u8f6c\u6362\u5bfc\u81f4\u91cd\u8f7d\u51fd\u6570\u4ea7\u751f\u4e8c\u4e49\u6027<\/strong><\/p>\n

\n\u793a\u4f8b8-1-3\u4e2d\uff0c\u7b2c\u4e00\u4e2aoutput\u51fd\u6570\u7684\u53c2\u6570\u662fint\u7c7b\u578b\uff0c\u7b2c\u4e8c\u4e2aoutput\u51fd\u6570\u7684\u53c2\u6570\u662ffloat\u7c7b\u578b\u3002\u7531\u4e8e\u6570\u5b57\u672c\u8eab\u6ca1\u6709\u7c7b\u578b\uff0c\u5c06\u6570\u5b57\u5f53\u4f5c\u53c2\u6570\u65f6\u5c06\u81ea\u52a8\u8fdb\u884c\u7c7b\u578b\u8f6c\u6362\uff08\u79f0\u4e3a\u9690\u5f0f\u7c7b\u578b\u8f6c\u6362\uff09\u3002\u8bed\u53e5output(0.5)\u5c06\u4ea7\u751f\u7f16\u8bd1\u9519\u8bef\uff0c\u56e0\u4e3a\u7f16\u8bd1\u5668\u4e0d\u77e5\u9053\u8be5\u5c060.5\u8f6c\u6362\u6210int\u8fd8\u662ffloat\u7c7b\u578b\u7684\u53c2\u6570\u3002\u9690\u5f0f\u7c7b\u578b\u8f6c\u6362\u5728\u5f88\u591a\u5730\u65b9\u53ef\u4ee5\u7b80\u5316\u7a0b\u5e8f\u7684\u4e66\u5199\uff0c\u4f46\u662f\u4e5f\u53ef\u80fd\u7559\u4e0b\u9690\u60a3\u3002<\/p>\n\n\n\n
\n

# include<\/p>\n

void output( int x); \/\/ \u51fd\u6570\u58f0\u660e<\/p>\n

void output( float x); \/\/ \u51fd\u6570\u58f0\u660e<\/p>\n

\u00a0<\/p>\n

void output( int x)<\/p>\n

{<\/p>\n

cout << \" output int \"
\n<< x <<
\nendl ;<\/p>\n

}<\/p>\n

\u00a0<\/p>\n

void output( float x)<\/p>\n

{<\/p>\n

cout << \" output float \"
\n<< x <<
\nendl ;<\/p>\n

}<\/p>\n

\u00a0<\/p>\n

void main(void)<\/p>\n

{<\/p>\n

int x = 1;<\/p>\n

float y = 1.0;<\/p>\n

output(x); \/\/ output int 1<\/p>\n

output(y); \/\/ output float 1<\/p>\n

output(1); \/\/ output int 1<\/p>\n

\/\/ output(0.5); \/\/ error! ambiguous call, \u56e0\u4e3a\u81ea\u52a8\u7c7b\u578b\u8f6c\u6362<\/p>\n

output(int(0.5)); \/\/ output int 0<\/p>\n

output(float(0.5)); \/\/ output float 0.5<\/p>\n

}<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u793a\u4f8b8-1-3 \u9690\u5f0f\u7c7b\u578b\u8f6c\u6362\u5bfc\u81f4\u91cd\u8f7d\u51fd\u6570\u4ea7\u751f\u4e8c\u4e49\u6027<\/p>\n

8.2 \u6210\u5458\u51fd\u6570\u7684\u91cd\u8f7d\u3001\u8986\u76d6\u4e0e\u9690\u85cf<\/font><\/strong><\/p>\n

\u6210\u5458\u51fd\u6570\u7684\u91cd\u8f7d\u3001\u8986\u76d6\uff08override\uff09\u4e0e\u9690\u85cf\u5f88\u5bb9\u6613\u6df7\u6dc6\uff0cC++\u7a0b\u5e8f\u5458\u5fc5\u987b\u8981\u641e\u6e05\u695a\u6982\u5ff5\uff0c\u5426\u5219\u9519\u8bef\u5c06\u9632\u4e0d\u80dc\u9632\u3002<\/p>\n

8.2.1 \u91cd\u8f7d\u4e0e\u8986\u76d6<\/strong><\/p>\n

\u6210\u5458\u51fd\u6570\u88ab\u91cd\u8f7d\u7684\u7279\u5f81\uff1a<\/p>\n

\uff081\uff09\u76f8\u540c\u7684\u8303\u56f4\uff08\u5728\u540c\u4e00\u4e2a\u7c7b\u4e2d\uff09\uff1b<\/p>\n

\uff082\uff09\u51fd\u6570\u540d\u5b57\u76f8\u540c\uff1b<\/p>\n

\uff083\uff09\u53c2\u6570\u4e0d\u540c\uff1b<\/p>\n

\uff084\uff09virtual\u5173\u952e\u5b57\u53ef\u6709\u53ef\u65e0\u3002<\/p>\n

\u8986\u76d6\u662f\u6307\u6d3e\u751f\u7c7b\u51fd\u6570\u8986\u76d6\u57fa\u7c7b\u51fd\u6570\uff0c\u7279\u5f81\u662f\uff1a<\/p>\n

\uff081\uff09\u4e0d\u540c\u7684\u8303\u56f4\uff08\u5206\u522b\u4f4d\u4e8e\u6d3e\u751f\u7c7b\u4e0e\u57fa\u7c7b\uff09\uff1b<\/p>\n

\uff082\uff09\u51fd\u6570\u540d\u5b57\u76f8\u540c\uff1b<\/p>\n

\uff083\uff09\u53c2\u6570\u76f8\u540c\uff1b<\/p>\n

\uff084\uff09\u57fa\u7c7b\u51fd\u6570\u5fc5\u987b\u6709virtual\u5173\u952e\u5b57\u3002<\/p>\n

\n\u793a\u4f8b8-2-1\u4e2d\uff0c\u51fd\u6570Base::f(int)\u4e0eBase::f(float)\u76f8\u4e92\u91cd\u8f7d\uff0c\u800cBase::g(void)\u88abDerived::g(void)\u8986\u76d6\u3002<\/p>\n\n\n\n\n\n
\n

#include<\/p>\n

class Base<\/p>\n

{<\/p>\n

public:<\/p>\n

void f(int x){ cout <<
\n\"Base::f(int) \" << x
\n<< endl; }<\/p>\n

void f(float x){ cout <<
\n\"Base::f(float) \" << x
\n<< endl; }<\/p>\n

virtual void g(void){ cout <<
\n\"Base::g(void)\" << endl;}<\/p>\n

};<\/p>\n<\/td>\n<\/tr>\n

\n

class Derived : public Base<\/p>\n

{<\/p>\n

public:<\/p>\n

virtual void g(void){ cout <<
\n\"Derived::g(void)\" << endl;}<\/p>\n

};<\/p>\n<\/td>\n<\/tr>\n

\n

void main(void)<\/p>\n

{<\/p>\n

Derived d;<\/p>\n

Base *pb = &d;<\/p>\n

pb->f(42); \/\/ Base::f(int) 42<\/p>\n

pb->f(3.14f); \/\/ Base::f(float) 3.14<\/p>\n

pb->g(); \/\/ Derived::g(void)<\/p>\n

}<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u793a\u4f8b8-2-1\u6210\u5458\u51fd\u6570\u7684\u91cd\u8f7d\u548c\u8986\u76d6<\/p>\n

8.2.2 \u4ee4\u4eba\u8ff7\u60d1\u7684\u9690\u85cf\u89c4\u5219<\/strong><\/p>\n

\n\u672c\u6765\u4ec5\u4ec5\u533a\u522b\u91cd\u8f7d\u4e0e\u8986\u76d6\u5e76\u4e0d\u7b97\u56f0\u96be\uff0c\u4f46\u662fC++\u7684\u9690\u85cf\u89c4\u5219\u4f7f\u95ee\u9898\u590d\u6742\u6027\u9661\u7136\u589e\u52a0\u3002\u8fd9\u91cc\u201c\u9690\u85cf\u201d\u662f\u6307\u6d3e\u751f\u7c7b\u7684\u51fd\u6570\u5c4f\u853d\u4e86\u4e0e\u5176\u540c\u540d\u7684\u57fa\u7c7b\u51fd\u6570\uff0c\u89c4\u5219\u5982\u4e0b\uff1a<\/p>\n

\n\uff081\uff09\u5982\u679c\u6d3e\u751f\u7c7b\u7684\u51fd\u6570\u4e0e\u57fa\u7c7b\u7684\u51fd\u6570\u540c\u540d\uff0c\u4f46\u662f\u53c2\u6570\u4e0d\u540c\u3002\u6b64\u65f6\uff0c\u4e0d\u8bba\u6709\u65e0virtual\u5173\u952e\u5b57\uff0c\u57fa\u7c7b\u7684\u51fd\u6570\u5c06\u88ab\u9690\u85cf\uff08\u6ce8\u610f\u522b\u4e0e\u91cd\u8f7d\u6df7\u6dc6\uff09\u3002<\/p>\n

\n\uff082\uff09\u5982\u679c\u6d3e\u751f\u7c7b\u7684\u51fd\u6570\u4e0e\u57fa\u7c7b\u7684\u51fd\u6570\u540c\u540d\uff0c\u5e76\u4e14\u53c2\u6570\u4e5f\u76f8\u540c\uff0c\u4f46\u662f\u57fa\u7c7b\u51fd\u6570\u6ca1\u6709virtual\u5173\u952e\u5b57\u3002\u6b64\u65f6\uff0c\u57fa\u7c7b\u7684\u51fd\u6570\u88ab\u9690\u85cf\uff08\u6ce8\u610f\u522b\u4e0e\u8986\u76d6\u6df7\u6dc6\uff09\u3002<\/p>\n

\u793a\u4f8b\u7a0b\u5e8f8-2-2\uff08a\uff09\u4e2d\uff1a<\/p>\n

\uff081\uff09\u51fd\u6570Derived::f(float)\u8986\u76d6\u4e86Base::f(float)\u3002<\/p>\n

\uff082\uff09\u51fd\u6570Derived::g(int)\u9690\u85cf\u4e86Base::g(float)\uff0c\u800c\u4e0d\u662f\u91cd\u8f7d\u3002<\/p>\n

\uff083\uff09\u51fd\u6570Derived::h(float)\u9690\u85cf\u4e86Base::h(float)\uff0c\u800c\u4e0d\u662f\u8986\u76d6\u3002<\/p>\n\n\n\n\n
\n

#include<\/p>\n

class Base<\/p>\n

{<\/p>\n

public:<\/p>\n

virtual void f(float x){ cout <<
\n\"Base::f(float) \" << x
\n<< endl; }<\/p>\n

void g(float x){ cout <<
\n\"Base::g(float) \" << x
\n<< endl; }<\/p>\n

void h(float x){ cout <<
\n\"Base::h(float) \" << x
\n<< endl; }<\/p>\n

};<\/p>\n<\/td>\n<\/tr>\n

\n

class Derived : public Base<\/p>\n

{<\/p>\n

public:<\/p>\n

virtual void f(float x){ cout <<
\n\"Derived::f(float) \" << x
\n<< endl; }<\/p>\n

void g(int x){ cout <<
\n\"Derived::g(int) \" << x
\n<< endl; }<\/p>\n

void h(float x){ cout <<
\n\"Derived::h(float) \" << x
\n<< endl; }<\/p>\n

};<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u793a\u4f8b8-2-2\uff08a\uff09\u6210\u5458\u51fd\u6570\u7684\u91cd\u8f7d\u3001\u8986\u76d6\u548c\u9690\u85cf<\/p>\n

\n\u636e\u4f5c\u8005\u8003\u5bdf\uff0c\u5f88\u591aC++\u7a0b\u5e8f\u5458\u6ca1\u6709\u610f\u8bc6\u5230\u6709\u201c\u9690\u85cf\u201d\u8fd9\u56de\u4e8b\u3002\u7531\u4e8e\u8ba4\u8bc6\u4e0d\u591f\u6df1\u523b\uff0c\u201c\u9690\u85cf\u201d\u7684\u53d1\u751f\u53ef\u8c13\u795e\u51fa\u9b3c\u6ca1\uff0c\u5e38\u5e38\u4ea7\u751f\u4ee4\u4eba\u8ff7\u60d1\u7684\u7ed3\u679c\u3002<\/p>\n

\u793a\u4f8b8-2-2\uff08b\uff09\u4e2d\uff0cbp\u548cdp\u6307\u5411\u540c\u4e00\u5730\u5740\uff0c\u6309\u7406\u8bf4\u8fd0\u884c\u7ed3\u679c\u5e94\u8be5\u662f\u76f8\u540c\u7684\uff0c\u53ef\u4e8b\u5b9e\u5e76\u975e\u8fd9\u6837\u3002<\/p>\n\n\n\n
\n

void main(void)<\/p>\n

{<\/p>\n

Derived d;<\/p>\n

Base *pb = &d;<\/p>\n

Derived *pd = &d;<\/p>\n

\/\/ Good : behavior depends solely on type of the object<\/p>\n

pb->f(3.14f); \/\/ Derived::f(float) 3.14<\/p>\n

pd->f(3.14f); \/\/ Derived::f(float) 3.14<\/p>\n

\u00a0<\/p>\n

\/\/ Bad : behavior depends on type of the pointer<\/p>\n

pb->g(3.14f); \/\/ Base::g(float) 3.14<\/p>\n

pd->g(3.14f); \/\/ Derived::g(int) 3
\n(surprise!)<\/p>\n

\u00a0<\/p>\n

\/\/ Bad : behavior depends on type of the pointer<\/p>\n

pb->h(3.14f); \/\/ Base::h(float) 3.14
\n(surprise!)<\/p>\n

pd->h(3.14f); \/\/ Derived::h(float) 3.14<\/p>\n

}<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u793a\u4f8b8-2-2\uff08b\uff09 \u91cd\u8f7d\u3001\u8986\u76d6\u548c\u9690\u85cf\u7684\u6bd4\u8f83<\/p>\n

8.2.3 \u6446\u8131\u9690\u85cf<\/font><\/strong><\/p>\n

\n\u9690\u85cf\u89c4\u5219\u5f15\u8d77\u4e86\u4e0d\u5c11\u9ebb\u70e6\u3002\u793a\u4f8b8-2-3\u7a0b\u5e8f\u4e2d\uff0c\u8bed\u53e5pd->f(10)\u7684\u672c\u610f\u662f\u60f3\u8c03\u7528\u51fd\u6570Base::f(int)\uff0c\u4f46\u662fBase::f(int)\u4e0d\u5e78\u88abDerived::f(char
\n*)\u9690\u85cf\u4e86\u3002\u7531\u4e8e\u6570\u5b5710\u4e0d\u80fd\u88ab\u9690\u5f0f\u5730\u8f6c\u5316\u4e3a\u5b57\u7b26\u4e32\uff0c\u6240\u4ee5\u5728\u7f16\u8bd1\u65f6\u51fa\u9519\u3002<\/p>\n\n\n\n\n\n
\n

class Base<\/p>\n

{<\/p>\n

public:<\/p>\n

void f(int x);<\/p>\n

};<\/p>\n<\/td>\n<\/tr>\n

\n

class Derived : public Base<\/p>\n

{<\/p>\n

public:<\/p>\n

void f(char *str);<\/p>\n

};<\/p>\n<\/td>\n<\/tr>\n

\n

void Test(void)<\/p>\n

{<\/p>\n

Derived *pd = new Derived;<\/p>\n

pd->f(10); \/\/ error<\/p>\n

}<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u793a\u4f8b8-2-3 \u7531\u4e8e\u9690\u85cf\u800c\u5bfc\u81f4\u9519\u8bef<\/p>\n

\u00a0<\/p>\n

\u4ece\u793a\u4f8b8-2-3\u770b\u6765\uff0c\u9690\u85cf\u89c4\u5219\u4f3c\u4e4e\u5f88\u611a\u8822\u3002\u4f46\u662f\u9690\u85cf\u89c4\u5219\u81f3\u5c11\u6709\u4e24\u4e2a\u5b58\u5728\u7684\u7406\u7531\uff1a<\/p>\n

\u5199\u8bed\u53e5pd->f(10)\u7684\u4eba\u53ef\u80fd\u771f\u7684\u60f3\u8c03\u7528Derived::f(char
\n*)\u51fd\u6570\uff0c\u53ea\u662f\u4ed6\u8bef\u5c06\u53c2\u6570\u5199\u9519\u4e86\u3002\u6709\u4e86\u9690\u85cf\u89c4\u5219\uff0c\u7f16\u8bd1\u5668\u5c31\u53ef\u4ee5\u660e\u786e\u6307\u51fa\u9519\u8bef\uff0c\u8fd9\u672a\u5fc5\u4e0d\u662f\u597d\u4e8b\u3002\u5426\u5219\uff0c\u7f16\u8bd1\u5668\u4f1a\u9759\u6084\u6084\u5730\u5c06\u9519\u5c31\u9519\uff0c\u7a0b\u5e8f\u5458\u5c06\u5f88\u96be\u53d1\u73b0\u8fd9\u4e2a\u9519\u8bef\uff0c\u6d41\u4e0b\u7978\u6839\u3002<\/p>\n

\n\u5047\u5982\u7c7bDerived\u6709\u591a\u4e2a\u57fa\u7c7b\uff08\u591a\u91cd\u7ee7\u627f\uff09\uff0c\u6709\u65f6\u641e\u4e0d\u6e05\u695a\u54ea\u4e9b\u57fa\u7c7b\u5b9a\u4e49\u4e86\u51fd\u6570f\u3002\u5982\u679c\u6ca1\u6709\u9690\u85cf\u89c4\u5219\uff0c\u90a3\u4e48pd->f(10)\u53ef\u80fd\u4f1a\u8c03\u7528\u4e00\u4e2a\u51fa\u4e4e\u610f\u6599\u7684\u57fa\u7c7b\u51fd\u6570f\u3002\u5c3d\u7ba1\u9690\u85cf\u89c4\u5219\u770b\u8d77\u6765\u4e0d\u600e\u4e48\u6709\u9053\u7406\uff0c\u4f46\u5b83\u7684\u786e\u80fd\u6d88\u706d\u8fd9\u4e9b\u610f\u5916\u3002<\/p>\n

\u00a0<\/p>\n

\n\u793a\u4f8b8-2-3\u4e2d\uff0c\u5982\u679c\u8bed\u53e5pd->f(10)\u4e00\u5b9a\u8981\u8c03\u7528\u51fd\u6570Base::f(int)\uff0c\u90a3\u4e48\u5c06\u7c7bDerived\u4fee\u6539\u4e3a\u5982\u4e0b\u5373\u53ef\u3002<\/p>\n

class Derived : public Base<\/p>\n

{<\/p>\n

public:<\/p>\n

void f(char *str);<\/p>\n

void f(int x) { Base::f(x); }<\/p>\n

};<\/p>\n

8.3 \u53c2\u6570\u7684\u7f3a\u7701\u503c<\/font><\/strong><\/p>\n

\n\u6709\u4e00\u4e9b\u53c2\u6570\u7684\u503c\u5728\u6bcf\u6b21\u51fd\u6570\u8c03\u7528\u65f6\u90fd\u76f8\u540c\uff0c\u4e66\u5199\u8fd9\u6837\u7684\u8bed\u53e5\u4f1a\u4f7f\u4eba\u538c\u70e6\u3002C++\u8bed\u8a00\u91c7\u7528\u53c2\u6570\u7684\u7f3a\u7701\u503c\u4f7f\u4e66\u5199\u53d8\u5f97\u7b80\u6d01\uff08\u5728\u7f16\u8bd1\u65f6\uff0c\u7f3a\u7701\u503c\u7531\u7f16\u8bd1\u5668\u81ea\u52a8\u63d2\u5165\uff09\u3002<\/p>\n

\u53c2\u6570\u7f3a\u7701\u503c\u7684\u4f7f\u7528\u89c4\u5219\uff1a<\/p>\n

\u3010\u89c4\u52198-3-1\u3011<\/strong>\u53c2\u6570\u7f3a\u7701\u503c\u53ea\u80fd\u51fa\u73b0\u5728\u51fd\u6570\u7684\u58f0\u660e\u4e2d\uff0c\u800c\u4e0d\u80fd\u51fa\u73b0\u5728\u5b9a\u4e49\u4f53\u4e2d\u3002<\/p>\n

\u4f8b\u5982\uff1a<\/p>\n

void Foo(int x=0, int y=0); \/\/ \u6b63\u786e\uff0c\u7f3a\u7701\u503c\u51fa\u73b0\u5728\u51fd\u6570\u7684\u58f0\u660e\u4e2d<\/p>\n

\u00a0<\/p>\n

void Foo(int x=0, int y=0) \/\/ \u9519\u8bef\uff0c\u7f3a\u7701\u503c\u51fa\u73b0\u5728\u51fd\u6570\u7684\u5b9a\u4e49\u4f53\u4e2d<\/p>\n

{<\/p>\n

\u2026<\/p>\n

}<\/p>\n

\n\u4e3a\u4ec0\u4e48\u4f1a\u8fd9\u6837\uff1f\u6211\u60f3\u662f\u6709\u4e24\u4e2a\u539f\u56e0\uff1a\u4e00\u662f\u51fd\u6570\u7684\u5b9e\u73b0\uff08\u5b9a\u4e49\uff09\u672c\u6765\u5c31\u4e0e\u53c2\u6570\u662f\u5426\u6709\u7f3a\u7701\u503c\u65e0\u5173\uff0c\u6240\u4ee5\u6ca1\u6709\u5fc5\u8981\u8ba9\u7f3a\u7701\u503c\u51fa\u73b0\u5728\u51fd\u6570\u7684\u5b9a\u4e49\u4f53\u4e2d\u3002\u4e8c\u662f\u53c2\u6570\u7684\u7f3a\u7701\u503c\u53ef\u80fd\u4f1a\u6539\u52a8\uff0c\u663e\u7136\u4fee\u6539\u51fd\u6570\u7684\u58f0\u660e\u6bd4\u4fee\u6539\u51fd\u6570\u7684\u5b9a\u4e49\u8981\u65b9\u4fbf\u3002<\/p>\n

\u00a0<\/p>\n

\n\u3010\u89c4\u52198-3-2\u3011<\/strong>\u5982\u679c\u51fd\u6570\u6709\u591a\u4e2a\u53c2\u6570\uff0c\u53c2\u6570\u53ea\u80fd\u4ece\u540e\u5411\u524d\u6328\u4e2a\u513f\u7f3a\u7701\uff0c\u5426\u5219\u5c06\u5bfc\u81f4\u51fd\u6570\u8c03\u7528\u8bed\u53e5\u602a\u6a21\u602a\u6837\u3002<\/p>\n

\u6b63\u786e\u7684\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n

void Foo(int x, int y=0, int z=0);<\/p>\n

\u9519\u8bef\u7684\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n

void Foo(int x=0, int y, int z=0);<\/p>\n

\n\u8981\u6ce8\u610f\uff0c\u4f7f\u7528\u53c2\u6570\u7684\u7f3a\u7701\u503c\u5e76\u6ca1\u6709\u8d4b\u4e88\u51fd\u6570\u65b0\u7684\u529f\u80fd\uff0c\u4ec5\u4ec5\u662f\u4f7f\u4e66\u5199\u53d8\u5f97\u7b80\u6d01\u4e00\u4e9b\u3002\u5b83\u53ef\u80fd\u4f1a\u63d0\u9ad8\u51fd\u6570\u7684\u6613\u7528\u6027\uff0c\u4f46\u662f\u4e5f\u53ef\u80fd\u4f1a\u964d\u4f4e\u51fd\u6570\u7684\u53ef\u7406\u89e3\u6027\u3002\u6240\u4ee5\u6211\u4eec\u53ea\u80fd\u9002\u5f53\u5730\u4f7f\u7528\u53c2\u6570\u7684\u7f3a\u7701\u503c\uff0c\u8981\u9632\u6b62\u4f7f\u7528\u4e0d\u5f53\u4ea7\u751f\u8d1f\u9762\u6548\u679c\u3002\u793a\u4f8b8-3-2\u4e2d\uff0c\u4e0d\u5408\u7406\u5730\u4f7f\u7528\u53c2\u6570\u7684\u7f3a\u7701\u503c\u5c06\u5bfc\u81f4\u91cd\u8f7d\u51fd\u6570output\u4ea7\u751f\u4e8c\u4e49\u6027\u3002<\/p>\n\n\n\n\n\n\n
\n

#include<\/p>\n

void output( int x);<\/p>\n

void output( int x, float y=0.0);<\/p>\n<\/td>\n<\/tr>\n

\n

void output( int x)<\/p>\n

{<\/p>\n

cout << \" output int \"
\n<< x <<
\nendl ;<\/p>\n

}<\/p>\n<\/td>\n<\/tr>\n

\n

void output( int x, float y)<\/p>\n

{<\/p>\n

cout << \" output int \"
\n<< x <<
\n\" and float \" << y
\n<< endl ;<\/p>\n

}<\/p>\n<\/td>\n<\/tr>\n

\n

void main(void)<\/p>\n

{<\/p>\n

int x=1;<\/p>\n

float y=0.5;<\/p>\n

\/\/ output(x); \/\/ error! ambiguous call<\/p>\n

output(x,y); \/\/ output int 1 and float 0.5<\/p>\n

}<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u793a\u4f8b8-3-2 \u53c2\u6570\u7684\u7f3a\u7701\u503c\u5c06\u5bfc\u81f4\u91cd\u8f7d\u51fd\u6570\u4ea7\u751f\u4e8c\u4e49\u6027<\/p>\n

8.4 \u8fd0\u7b97\u7b26\u91cd\u8f7d<\/font><\/strong><\/p>\n

8.4.1 \u6982\u5ff5<\/strong><\/p>\n

\u5728C++\u8bed\u8a00\u4e2d\uff0c\u53ef\u4ee5\u7528\u5173\u952e\u5b57operator\u52a0\u4e0a\u8fd0\u7b97\u7b26\u6765\u8868\u793a\u51fd\u6570\uff0c\u53eb\u505a\u8fd0\u7b97\u7b26\u91cd\u8f7d\u3002\u4f8b\u5982\u4e24\u4e2a\u590d\u6570\u76f8\u52a0\u51fd\u6570\uff1a<\/p>\n

Complex Add(const Complex &a, const Complex
\n&b);<\/p>\n

\u53ef\u4ee5\u7528\u8fd0\u7b97\u7b26\u91cd\u8f7d\u6765\u8868\u793a\uff1a<\/p>\n

Complex operator +(const Complex &a, const
\nComplex &b);<\/p>\n

\u8fd0\u7b97\u7b26\u4e0e\u666e\u901a\u51fd\u6570\u5728\u8c03\u7528\u65f6\u7684\u4e0d\u540c\u4e4b\u5904\u662f\uff1a\u5bf9\u4e8e\u666e\u901a\u51fd\u6570\uff0c\u53c2\u6570\u51fa\u73b0\u5728\u5706\u62ec\u53f7\u5185\uff1b\u800c\u5bf9\u4e8e\u8fd0\u7b97\u7b26\uff0c\u53c2\u6570\u51fa\u73b0\u5728\u5176\u5de6\u3001\u53f3\u4fa7\u3002\u4f8b\u5982<\/p>\n

Complex a, b, c;<\/p>\n

\u2026<\/p>\n

c = Add(a, b); \/\/ \u7528\u666e\u901a\u51fd\u6570<\/p>\n

c = a + b; \/\/ \u7528\u8fd0\u7b97\u7b26 +<\/p>\n

\u5982\u679c\u8fd0\u7b97\u7b26\u88ab\u91cd\u8f7d\u4e3a\u5168\u5c40\u51fd\u6570\uff0c\u90a3\u4e48\u53ea\u6709\u4e00\u4e2a\u53c2\u6570\u7684\u8fd0\u7b97\u7b26\u53eb\u505a\u4e00\u5143\u8fd0\u7b97\u7b26\uff0c\u6709\u4e24\u4e2a\u53c2\u6570\u7684\u8fd0\u7b97\u7b26\u53eb\u505a\u4e8c\u5143\u8fd0\u7b97\u7b26\u3002<\/p>\n

\u5982\u679c\u8fd0\u7b97\u7b26\u88ab\u91cd\u8f7d\u4e3a\u7c7b\u7684\u6210\u5458\u51fd\u6570\uff0c\u90a3\u4e48\u4e00\u5143\u8fd0\u7b97\u7b26\u6ca1\u6709\u53c2\u6570\uff0c\u4e8c\u5143\u8fd0\u7b97\u7b26\u53ea\u6709\u4e00\u4e2a\u53f3\u4fa7\u53c2\u6570\uff0c\u56e0\u4e3a\u5bf9\u8c61\u81ea\u5df1\u6210\u4e86\u5de6\u4fa7\u53c2\u6570\u3002<\/p>\n

\u4ece\u8bed\u6cd5\u4e0a\u8bb2\uff0c\u8fd0\u7b97\u7b26\u65e2\u53ef\u4ee5\u5b9a\u4e49\u4e3a\u5168\u5c40\u51fd\u6570\uff0c\u4e5f\u53ef\u4ee5\u5b9a\u4e49\u4e3a\u6210\u5458\u51fd\u6570\u3002\u6587\u732e[Murray ,
\np44-p47]\u5bf9\u6b64\u95ee\u9898\u4f5c\u4e86\u8f83\u591a\u7684\u9610\u8ff0\uff0c\u5e76\u603b\u7ed3\u4e86\u88688-4-1\u7684\u89c4\u5219\u3002<\/p>\n\n\n\n\n\n\n\n
\u8fd0\u7b97\u7b26<\/p>\n<\/td>\n\u89c4\u5219<\/td>\n<\/tr>\n
\u6240\u6709\u7684\u4e00\u5143\u8fd0\u7b97\u7b26<\/td>\n\u5efa\u8bae\u91cd\u8f7d\u4e3a\u6210\u5458\u51fd\u6570<\/td>\n<\/tr>\n
= () [] -><\/td>\n\u53ea\u80fd\u91cd\u8f7d\u4e3a\u6210\u5458\u51fd\u6570<\/td>\n<\/tr>\n
+= -= \/= *= &= |= ~= %=
\n>>=
\n<<=<\/td>\n		\u5efa\u8bae\u91cd\u8f7d\u4e3a\u6210\u5458\u51fd\u6570<\/td>\n<\/tr>\n
\u6240\u6709\u5176\u5b83\u8fd0\u7b97\u7b26<\/td>\n\u5efa\u8bae\u91cd\u8f7d\u4e3a\u5168\u5c40\u51fd\u6570<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u88688-4-1 \u8fd0\u7b97\u7b26\u7684\u91cd\u8f7d\u89c4\u5219<\/strong><\/p>\n

\u7531\u4e8eC++\u8bed\u8a00\u652f\u6301\u51fd\u6570\u91cd\u8f7d\uff0c\u624d\u80fd\u5c06\u8fd0\u7b97\u7b26\u5f53\u6210\u51fd\u6570\u6765\u7528\uff0cC\u8bed\u8a00\u5c31\u4e0d\u884c\u3002\u6211\u4eec\u8981\u4ee5\u5e73\u5e38\u5fc3\u6765\u5bf9\u5f85\u8fd0\u7b97\u7b26\u91cd\u8f7d\uff1a<\/p>\n

\uff081\uff09\u4e0d\u8981\u8fc7\u5206\u62c5\u5fc3\u81ea\u5df1\u4e0d\u4f1a\u7528\uff0c\u5b83\u7684\u672c\u8d28\u4ecd\u7136\u662f\u7a0b\u5e8f\u5458\u4eec\u719f\u6089\u7684\u51fd\u6570\u3002<\/p>\n

\uff082\uff09\u4e0d\u8981\u8fc7\u5206\u70ed\u5fc3\u5730\u4f7f\u7528\uff0c\u5982\u679c\u5b83\u4e0d\u80fd\u4f7f\u4ee3\u7801\u53d8\u5f97\u66f4\u52a0\u6613\u8bfb\u6613\u5199\uff0c\u90a3\u5c31\u522b\u7528\uff0c\u5426\u5219\u4f1a\u81ea\u627e\u9ebb\u70e6\u3002<\/p>\n

8.4.2 \u4e0d\u80fd\u88ab\u91cd\u8f7d\u7684\u8fd0\u7b97\u7b26<\/strong><\/p>\n

\u5728C++\u8fd0\u7b97\u7b26\u96c6\u5408\u4e2d\uff0c\u6709\u4e00\u4e9b\u8fd0\u7b97\u7b26\u662f\u4e0d\u5141\u8bb8\u88ab\u91cd\u8f7d\u7684\u3002\u8fd9\u79cd\u9650\u5236\u662f\u51fa\u4e8e\u5b89\u5168\u65b9\u9762\u7684\u8003\u8651\uff0c\u53ef\u9632\u6b62\u9519\u8bef\u548c\u6df7\u4e71\u3002<\/p>\n

\uff081\uff09\u4e0d\u80fd\u6539\u53d8C++\u5185\u90e8\u6570\u636e\u7c7b\u578b\uff08\u5982int,float\u7b49\uff09\u7684\u8fd0\u7b97\u7b26\u3002<\/p>\n

\uff082\uff09\u4e0d\u80fd\u91cd\u8f7d\u2018.\u2019\uff0c\u56e0\u4e3a\u2018.\u2019\u5728\u7c7b\u4e2d\u5bf9\u4efb\u4f55\u6210\u5458\u90fd\u6709\u610f\u4e49\uff0c\u5df2\u7ecf\u6210\u4e3a\u6807\u51c6\u7528\u6cd5\u3002<\/p>\n

\uff083\uff09\u4e0d\u80fd\u91cd\u8f7d\u76ee\u524dC++\u8fd0\u7b97\u7b26\u96c6\u5408\u4e2d\u6ca1\u6709\u7684\u7b26\u53f7\uff0c\u5982#,@,$\u7b49\u3002\u539f\u56e0\u6709\u4e24\u70b9\uff0c\u4e00\u662f\u96be\u4ee5\u7406\u89e3\uff0c\u4e8c\u662f\u96be\u4ee5\u786e\u5b9a\u4f18\u5148\u7ea7\u3002<\/p>\n

\uff084\uff09\u5bf9\u5df2\u7ecf\u5b58\u5728\u7684\u8fd0\u7b97\u7b26\u8fdb\u884c\u91cd\u8f7d\u65f6\uff0c\u4e0d\u80fd\u6539\u53d8\u4f18\u5148\u7ea7\u89c4\u5219\uff0c\u5426\u5219\u5c06\u5f15\u8d77\u6df7\u4e71\u3002<\/p>\n

8.5 \u51fd\u6570\u5185\u8054<\/font><\/strong><\/p>\n

8.5.1 \u7528\u5185\u8054\u53d6\u4ee3\u5b8f\u4ee3\u7801<\/strong><\/p>\n

C++ \u8bed\u8a00\u652f\u6301\u51fd\u6570\u5185\u8054\uff0c\u5176\u76ee\u7684\u662f\u4e3a\u4e86\u63d0\u9ad8\u51fd\u6570\u7684\u6267\u884c\u6548\u7387\uff08\u901f\u5ea6\uff09\u3002<\/p>\n

\n\u5728C\u7a0b\u5e8f\u4e2d\uff0c\u53ef\u4ee5\u7528\u5b8f\u4ee3\u7801\u63d0\u9ad8\u6267\u884c\u6548\u7387\u3002\u5b8f\u4ee3\u7801\u672c\u8eab\u4e0d\u662f\u51fd\u6570\uff0c\u4f46\u4f7f\u7528\u8d77\u6765\u8c61\u51fd\u6570\u3002\u9884\u5904\u7406\u5668\u7528\u590d\u5236\u5b8f\u4ee3\u7801\u7684\u65b9\u5f0f\u4ee3\u66ff\u51fd\u6570\u8c03\u7528\uff0c\u7701\u53bb\u4e86\u53c2\u6570\u538b\u6808\u3001\u751f\u6210\u6c47\u7f16\u8bed\u8a00\u7684CALL\u8c03\u7528\u3001\u8fd4\u56de\u53c2\u6570\u3001\u6267\u884creturn\u7b49\u8fc7\u7a0b\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u901f\u5ea6\u3002\u4f7f\u7528\u5b8f\u4ee3\u7801\u6700\u5927\u7684\u7f3a\u70b9\u662f\u5bb9\u6613\u51fa\u9519\uff0c\u9884\u5904\u7406\u5668\u5728\u590d\u5236\u5b8f\u4ee3\u7801\u65f6\u5e38\u5e38\u4ea7\u751f\u610f\u60f3\u4e0d\u5230\u7684\u8fb9\u9645\u6548\u5e94\u3002\u4f8b\u5982<\/p>\n

#define MAX(a, b) (a) > (b) ? (a) : (b)<\/p>\n

\u8bed\u53e5<\/p>\n

result = MAX(i, j) + 2 ;<\/p>\n

\u5c06\u88ab\u9884\u5904\u7406\u5668\u89e3\u91ca\u4e3a<\/p>\n

result = (i) > (j) ? (i) : (j) + 2 ;<\/p>\n

\u7531\u4e8e\u8fd0\u7b97\u7b26\u2018+\u2019\u6bd4\u8fd0\u7b97\u7b26\u2018:\u2019\u7684\u4f18\u5148\u7ea7\u9ad8\uff0c\u6240\u4ee5\u4e0a\u8ff0\u8bed\u53e5\u5e76\u4e0d\u7b49\u4ef7\u4e8e\u671f\u671b\u7684<\/p>\n

result = ( (i) > (j) ? (i) : (j) ) + 2 ;<\/p>\n

\u5982\u679c\u628a\u5b8f\u4ee3\u7801\u6539\u5199\u4e3a<\/p>\n

#define MAX(a, b) ( (a) > (b) ? (a) : (b) )<\/p>\n

\u5219\u53ef\u4ee5\u89e3\u51b3\u7531\u4f18\u5148\u7ea7\u5f15\u8d77\u7684\u9519\u8bef\u3002\u4f46\u662f\u5373\u4f7f\u4f7f\u7528\u4fee\u6539\u540e\u7684\u5b8f\u4ee3\u7801\u4e5f\u4e0d\u662f\u4e07\u65e0\u4e00\u5931\u7684\uff0c\u4f8b\u5982\u8bed\u53e5<\/p>\n

result = MAX(i++, j);<\/p>\n

\u5c06\u88ab\u9884\u5904\u7406\u5668\u89e3\u91ca\u4e3a<\/p>\n

result = (i++) > (j) ? (i++) : (j);<\/p>\n

\u5bf9\u4e8eC++ \u800c\u8a00\uff0c\u4f7f\u7528\u5b8f\u4ee3\u7801\u8fd8\u6709\u53e6\u4e00\u79cd\u7f3a\u70b9\uff1a\u65e0\u6cd5\u64cd\u4f5c\u7c7b\u7684\u79c1\u6709\u6570\u636e\u6210\u5458\u3002<\/p>\n

\u8ba9\u6211\u4eec\u770b\u770bC++
\n\u7684\u201c\u51fd\u6570\u5185\u8054\u201d\u662f\u5982\u4f55\u5de5\u4f5c\u7684\u3002\u5bf9\u4e8e\u4efb\u4f55\u5185\u8054\u51fd\u6570\uff0c\u7f16\u8bd1\u5668\u5728\u7b26\u53f7\u8868\u91cc\u653e\u5165\u51fd\u6570\u7684\u58f0\u660e\uff08\u5305\u62ec\u540d\u5b57\u3001\u53c2\u6570\u7c7b\u578b\u3001\u8fd4\u56de\u503c\u7c7b\u578b\uff09\u3002\u5982\u679c\u7f16\u8bd1\u5668\u6ca1\u6709\u53d1\u73b0\u5185\u8054\u51fd\u6570\u5b58\u5728\u9519\u8bef\uff0c\u90a3\u4e48\u8be5\u51fd\u6570\u7684\u4ee3\u7801\u4e5f\u88ab\u653e\u5165\u7b26\u53f7\u8868\u91cc\u3002\u5728\u8c03\u7528\u4e00\u4e2a\u5185\u8054\u51fd\u6570\u65f6\uff0c\u7f16\u8bd1\u5668\u9996\u5148\u68c0\u67e5\u8c03\u7528\u662f\u5426\u6b63\u786e\uff08\u8fdb\u884c\u7c7b\u578b\u5b89\u5168\u68c0\u67e5\uff0c\u6216\u8005\u8fdb\u884c\u81ea\u52a8\u7c7b\u578b\u8f6c\u6362\uff0c\u5f53\u7136\u5bf9\u6240\u6709\u7684\u51fd\u6570\u90fd\u4e00\u6837\uff09\u3002\u5982\u679c\u6b63\u786e\uff0c\u5185\u8054\u51fd\u6570\u7684\u4ee3\u7801\u5c31\u4f1a\u76f4\u63a5\u66ff\u6362\u51fd\u6570\u8c03\u7528\uff0c\u4e8e\u662f\u7701\u53bb\u4e86\u51fd\u6570\u8c03\u7528\u7684\u5f00\u9500\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u4e0e\u9884\u5904\u7406\u6709\u663e\u8457\u7684\u4e0d\u540c\uff0c\u56e0\u4e3a\u9884\u5904\u7406\u5668\u4e0d\u80fd\u8fdb\u884c\u7c7b\u578b\u5b89\u5168\u68c0\u67e5\uff0c\u6216\u8005\u8fdb\u884c\u81ea\u52a8\u7c7b\u578b\u8f6c\u6362\u3002\u5047\u5982\u5185\u8054\u51fd\u6570\u662f\u6210\u5458\u51fd\u6570\uff0c\u5bf9\u8c61\u7684\u5730\u5740\uff08this\uff09\u4f1a\u88ab\u653e\u5728\u5408\u9002\u7684\u5730\u65b9\uff0c\u8fd9\u4e5f\u662f\u9884\u5904\u7406\u5668\u529e\u4e0d\u5230\u7684\u3002<\/p>\n

C++ \u8bed\u8a00\u7684\u51fd\u6570\u5185\u8054\u673a\u5236\u65e2\u5177\u5907\u5b8f\u4ee3\u7801\u7684\u6548\u7387\uff0c\u53c8\u589e\u52a0\u4e86\u5b89\u5168\u6027\uff0c\u800c\u4e14\u53ef\u4ee5\u81ea\u7531\u64cd\u4f5c\u7c7b\u7684\u6570\u636e\u6210\u5458\u3002\u6240\u4ee5\u5728C++
\n\u7a0b\u5e8f\u4e2d\uff0c\u5e94\u8be5\u7528\u5185\u8054\u51fd\u6570\u53d6\u4ee3\u6240\u6709\u5b8f\u4ee3\u7801\uff0c\u201c\u65ad\u8a00assert\u201d\u6050\u6015\u662f\u552f\u4e00\u7684\u4f8b\u5916\u3002assert\u662f\u4ec5\u5728Debug\u7248\u672c\u8d77\u4f5c\u7528\u7684\u5b8f\uff0c\u5b83\u7528\u4e8e\u68c0\u67e5\u201c\u4e0d\u5e94\u8be5\u201d\u53d1\u751f\u7684\u60c5\u51b5\u3002\u4e3a\u4e86\u4e0d\u5728\u7a0b\u5e8f\u7684Debug\u7248\u672c\u548cRelease\u7248\u672c\u5f15\u8d77\u5dee\u522b\uff0cassert\u4e0d\u5e94\u8be5\u4ea7\u751f\u4efb\u4f55\u526f\u4f5c\u7528\u3002\u5982\u679cassert\u662f\u51fd\u6570\uff0c\u7531\u4e8e\u51fd\u6570\u8c03\u7528\u4f1a\u5f15\u8d77\u5185\u5b58\u3001\u4ee3\u7801\u7684\u53d8\u52a8\uff0c\u90a3\u4e48\u5c06\u5bfc\u81f4Debug\u7248\u672c\u4e0eRelease\u7248\u672c\u5b58\u5728\u5dee\u5f02\u3002\u6240\u4ee5assert\u4e0d\u662f\u51fd\u6570\uff0c\u800c\u662f\u5b8f\u3002\uff08\u53c2\u89c16.5\u8282\u201c\u4f7f\u7528\u65ad\u8a00\u201d\uff09<\/p>\n

8.5.2 \u5185\u8054\u51fd\u6570\u7684\u7f16\u7a0b\u98ce\u683c<\/strong><\/p>\n

\n\u5173\u952e\u5b57inline\u5fc5\u987b\u4e0e\u51fd\u6570\u5b9a\u4e49\u4f53\u653e\u5728\u4e00\u8d77\u624d\u80fd\u4f7f\u51fd\u6570\u6210\u4e3a\u5185\u8054\uff0c\u4ec5\u5c06inline\u653e\u5728\u51fd\u6570\u58f0\u660e\u524d\u9762\u4e0d\u8d77\u4efb\u4f55\u4f5c\u7528\u3002\u5982\u4e0b\u98ce\u683c\u7684\u51fd\u6570Foo\u4e0d\u80fd\u6210\u4e3a\u5185\u8054\u51fd\u6570\uff1a<\/p>\n

inline void Foo(int x, int y); \/\/ inline\u4ec5\u4e0e\u51fd\u6570\u58f0\u660e\u653e\u5728\u4e00\u8d77<\/p>\n

void Foo(int x, int y)<\/p>\n

{<\/p>\n

\u2026<\/p>\n

}<\/p>\n

\u800c\u5982\u4e0b\u98ce\u683c\u7684\u51fd\u6570Foo\u5219\u6210\u4e3a\u5185\u8054\u51fd\u6570\uff1a<\/p>\n

void Foo(int x, int y);<\/p>\n

inline void Foo(int x, int y) \/\/ inline\u4e0e\u51fd\u6570\u5b9a\u4e49\u4f53\u653e\u5728\u4e00\u8d77<\/p>\n

{<\/p>\n

\u2026<\/p>\n

}<\/p>\n

\n\u6240\u4ee5\u8bf4\uff0cinline\u662f\u4e00\u79cd\u201c\u7528\u4e8e\u5b9e\u73b0\u7684\u5173\u952e\u5b57\u201d\uff0c\u800c\u4e0d\u662f\u4e00\u79cd\u201c\u7528\u4e8e\u58f0\u660e\u7684\u5173\u952e\u5b57\u201d\u3002\u4e00\u822c\u5730\uff0c\u7528\u6237\u53ef\u4ee5\u9605\u8bfb\u51fd\u6570\u7684\u58f0\u660e\uff0c\u4f46\u662f\u770b\u4e0d\u5230\u51fd\u6570\u7684\u5b9a\u4e49\u3002\u5c3d\u7ba1\u5728\u5927\u591a\u6570\u6559\u79d1\u4e66\u4e2d\u5185\u8054\u51fd\u6570\u7684\u58f0\u660e\u3001\u5b9a\u4e49\u4f53\u524d\u9762\u90fd\u52a0\u4e86inline\u5173\u952e\u5b57\uff0c\u4f46\u6211\u8ba4\u4e3ainline\u4e0d\u5e94\u8be5\u51fa\u73b0\u5728\u51fd\u6570\u7684\u58f0\u660e\u4e2d\u3002\u8fd9\u4e2a\u7ec6\u8282\u867d\u7136\u4e0d\u4f1a\u5f71\u54cd\u51fd\u6570\u7684\u529f\u80fd\uff0c\u4f46\u662f\u4f53\u73b0\u4e86\u9ad8\u8d28\u91cfC++\/C\u7a0b\u5e8f\u8bbe\u8ba1\u98ce\u683c\u7684\u4e00\u4e2a\u57fa\u672c\u539f\u5219\uff1a\u58f0\u660e\u4e0e\u5b9a\u4e49\u4e0d\u53ef\u6df7\u4e3a\u4e00\u8c08\uff0c\u7528\u6237\u6ca1\u6709\u5fc5\u8981\u3001\u4e5f\u4e0d\u5e94\u8be5\u77e5\u9053\u51fd\u6570\u662f\u5426\u9700\u8981\u5185\u8054\u3002<\/p>\n

\u5b9a\u4e49\u5728\u7c7b\u58f0\u660e\u4e4b\u4e2d\u7684\u6210\u5458\u51fd\u6570\u5c06\u81ea\u52a8\u5730\u6210\u4e3a\u5185\u8054\u51fd\u6570\uff0c\u4f8b\u5982<\/p>\n

class A<\/p>\n

{<\/p>\n

public:<\/p>\n

void Foo(int x, int y) { \u2026 } \/\/ \u81ea\u52a8\u5730\u6210\u4e3a\u5185\u8054\u51fd\u6570<\/p>\n

}<\/p>\n

\u5c06\u6210\u5458\u51fd\u6570\u7684\u5b9a\u4e49\u4f53\u653e\u5728\u7c7b\u58f0\u660e\u4e4b\u4e2d\u867d\u7136\u80fd\u5e26\u6765\u4e66\u5199\u4e0a\u7684\u65b9\u4fbf\uff0c\u4f46\u4e0d\u662f\u4e00\u79cd\u826f\u597d\u7684\u7f16\u7a0b\u98ce\u683c\uff0c\u4e0a\u4f8b\u5e94\u8be5\u6539\u6210\uff1a<\/p>\n

\/\/ \u5934\u6587\u4ef6<\/p>\n

class A<\/p>\n

{<\/p>\n

public:<\/p>\n

void Foo(int x, int y)\uff1b<\/p>\n

}<\/p>\n

\/\/ \u5b9a\u4e49\u6587\u4ef6<\/p>\n

inline void A::Foo(int x, int y)<\/p>\n

{<\/p>\n

\u2026<\/p>\n

}<\/p>\n

8.5.3 \u614e\u7528\u5185\u8054<\/strong><\/p>\n

\u5185\u8054\u80fd\u63d0\u9ad8\u51fd\u6570\u7684\u6267\u884c\u6548\u7387\uff0c\u4e3a\u4ec0\u4e48\u4e0d\u628a\u6240\u6709\u7684\u51fd\u6570\u90fd\u5b9a\u4e49\u6210\u5185\u8054\u51fd\u6570\uff1f<\/p>\n

\u5982\u679c\u6240\u6709\u7684\u51fd\u6570\u90fd\u662f\u5185\u8054\u51fd\u6570\uff0c\u8fd8\u7528\u5f97\u7740\u201c\u5185\u8054\u201d\u8fd9\u4e2a\u5173\u952e\u5b57\u5417\uff1f<\/p>\n

\n\u5185\u8054\u662f\u4ee5\u4ee3\u7801\u81a8\u80c0\uff08\u590d\u5236\uff09\u4e3a\u4ee3\u4ef7\uff0c\u4ec5\u4ec5\u7701\u53bb\u4e86\u51fd\u6570\u8c03\u7528\u7684\u5f00\u9500\uff0c\u4ece\u800c\u63d0\u9ad8\u51fd\u6570\u7684\u6267\u884c\u6548\u7387\u3002\u5982\u679c\u6267\u884c\u51fd\u6570\u4f53\u5185\u4ee3\u7801\u7684\u65f6\u95f4\uff0c\u76f8\u6bd4\u4e8e\u51fd\u6570\u8c03\u7528\u7684\u5f00\u9500\u8f83\u5927\uff0c\u90a3\u4e48\u6548\u7387\u7684\u6536\u83b7\u4f1a\u5f88\u5c11\u3002\u53e6\u4e00\u65b9\u9762\uff0c\u6bcf\u4e00\u5904\u5185\u8054\u51fd\u6570\u7684\u8c03\u7528\u90fd\u8981\u590d\u5236\u4ee3\u7801\uff0c\u5c06\u4f7f\u7a0b\u5e8f\u7684\u603b\u4ee3\u7801\u91cf\u589e\u5927\uff0c\u6d88\u8017\u66f4\u591a\u7684\u5185\u5b58\u7a7a\u95f4\u3002\u4ee5\u4e0b\u60c5\u51b5\u4e0d\u5b9c\u4f7f\u7528\u5185\u8054\uff1a<\/p>\n

\uff081\uff09\u5982\u679c\u51fd\u6570\u4f53\u5185\u7684\u4ee3\u7801\u6bd4\u8f83\u957f\uff0c\u4f7f\u7528\u5185\u8054\u5c06\u5bfc\u81f4\u5185\u5b58\u6d88\u8017\u4ee3\u4ef7\u8f83\u9ad8\u3002<\/p>\n

\uff082\uff09\u5982\u679c\u51fd\u6570\u4f53\u5185\u51fa\u73b0\u5faa\u73af\uff0c\u90a3\u4e48\u6267\u884c\u51fd\u6570\u4f53\u5185\u4ee3\u7801\u7684\u65f6\u95f4\u8981\u6bd4\u51fd\u6570\u8c03\u7528\u7684\u5f00\u9500\u5927\u3002<\/p>\n

\n\u7c7b\u7684\u6784\u9020\u51fd\u6570\u548c\u6790\u6784\u51fd\u6570\u5bb9\u6613\u8ba9\u4eba\u8bef\u89e3\u6210\u4f7f\u7528\u5185\u8054\u66f4\u6709\u6548\u3002\u8981\u5f53\u5fc3\u6784\u9020\u51fd\u6570\u548c\u6790\u6784\u51fd\u6570\u53ef\u80fd\u4f1a\u9690\u85cf\u4e00\u4e9b\u884c\u4e3a\uff0c\u5982\u201c\u5077\u5077\u5730\u201d\u6267\u884c\u4e86\u57fa\u7c7b\u6216\u6210\u5458\u5bf9\u8c61\u7684\u6784\u9020\u51fd\u6570\u548c\u6790\u6784\u51fd\u6570\u3002\u6240\u4ee5\u4e0d\u8981\u968f\u4fbf\u5730\u5c06\u6784\u9020\u51fd\u6570\u548c\u6790\u6784\u51fd\u6570\u7684\u5b9a\u4e49\u4f53\u653e\u5728\u7c7b\u58f0\u660e\u4e2d\u3002<\/p>\n

\u4e00\u4e2a\u597d\u7684\u7f16\u8bd1\u5668\u5c06\u4f1a\u6839\u636e\u51fd\u6570\u7684\u5b9a\u4e49\u4f53\uff0c\u81ea\u52a8\u5730\u53d6\u6d88\u4e0d\u503c\u5f97\u7684\u5185\u8054\uff08\u8fd9\u8fdb\u4e00\u6b65\u8bf4\u660e\u4e86inline\u4e0d\u5e94\u8be5\u51fa\u73b0\u5728\u51fd\u6570\u7684\u58f0\u660e\u4e2d\uff09\u3002<\/p>\n

8.6 \u4e00\u4e9b\u5fc3\u5f97\u4f53\u4f1a<\/font><\/strong><\/p>\n

C++
\n\u8bed\u8a00\u4e2d\u7684\u91cd\u8f7d\u3001\u5185\u8054\u3001\u7f3a\u7701\u53c2\u6570\u3001\u9690\u5f0f\u8f6c\u6362\u7b49\u673a\u5236\u5c55\u73b0\u4e86\u5f88\u591a\u4f18\u70b9\uff0c\u4f46\u662f\u8fd9\u4e9b\u4f18\u70b9\u7684\u80cc\u540e\u90fd\u9690\u85cf\u7740\u4e00\u4e9b\u9690\u60a3\u3002\u6b63\u5982\u4eba\u4eec\u7684\u996e\u98df\uff0c\u5c11\u98df\u548c\u66b4\u98df\u90fd\u4e0d\u53ef\u53d6\uff0c\u5e94\u5f53\u6070\u5230\u597d\u5904\u3002\u6211\u4eec\u8981\u8fa8\u8bc1\u5730\u770b\u5f85C++\u7684\u65b0\u673a\u5236\uff0c\u5e94\u8be5\u6070\u5982\u5176\u5206\u5730\u4f7f\u7528\u5b83\u4eec\u3002\u867d\u7136\u8fd9\u4f1a\u4f7f\u6211\u4eec\u7f16\u7a0b\u65f6\u591a\u8d39\u4e00\u4e9b\u5fc3\u601d\uff0c\u5c11\u4e86\u4e00\u4e9b\u75db\u5feb\uff0c\u4f46\u8fd9\u624d\u662f\u7f16\u7a0b\u7684\u827a\u672f\u3002<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

\u9ad8\u8d28\u91cfC++\u6559\u7a0b — \u7b2c8\u7ae0 C++\u51fd\u6570\u7684\u9ad8\u7ea7\u7279\u6027 \u6765\u6e90:www.vcworld.net\u3000 \u5bf9\u6bd4\u4e8eC\u8bed\u8a00\u7684\u51fd … \u7ee7\u7eed\u9605\u8bfb\u201c\u9ad8\u8d28\u91cfC++\u6559\u7a0b — \u7b2c8\u7ae0 C++\u51fd\u6570\u7684\u9ad8\u7ea7\u7279\u6027\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[24,83,105,126,74,55],"class_list":["post-169","post","type-post","status-publish","format-standard","hentry","category-c","tag-c","tag-it","tag-105","tag-126","tag-74","tag-55"],"_links":{"self":[{"href":"https:\/\/www.keyboardmeow.com\/index.php?rest_route=\/wp\/v2\/posts\/169","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.keyboardmeow.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.keyboardmeow.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.keyboardmeow.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.keyboardmeow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=169"}],"version-history":[{"count":0,"href":"https:\/\/www.keyboardmeow.com\/index.php?rest_route=\/wp\/v2\/posts\/169\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.keyboardmeow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=169"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.keyboardmeow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=169"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.keyboardmeow.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=169"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}