{"id":179,"date":"2009-07-04T02:14:00","date_gmt":"2009-07-03T18:14:00","guid":{"rendered":"http:\/\/gsakd878.wordpress.com\/2009\/07\/04\/lua%e6%b8%b8%e6%88%8f%e8%84%9a%e6%9c%ac%e8%af%ad%e8%a8%80%e5%85%a5%e9%97%a8"},"modified":"2009-07-04T02:14:00","modified_gmt":"2009-07-03T18:14:00","slug":"lua%e6%b8%b8%e6%88%8f%e8%84%9a%e6%9c%ac%e8%af%ad%e8%a8%80%e5%85%a5%e9%97%a8","status":"publish","type":"post","link":"https:\/\/www.keyboardmeow.com\/?p=179","title":{"rendered":"Lua\u6e38\u620f\u811a\u672c\u8bed\u8a00\u5165\u95e8"},"content":{"rendered":"

\n\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u60f3\u5411\u5927\u5bb6\u4ecb\u7ecd\u5982\u4f55\u8fdb\u884cLua\u7a0b\u5e8f\u8bbe\u8ba1\u3002\u6211\u5047\u8bbe\u5927\u5bb6\u90fd\u5b66\u8fc7\u81f3\u5c11\u4e00\u95e8\u7f16\u7a0b\u8bed\u8a00\uff0c\u6bd4\u5982Basic\u6216C\uff0c\u7279\u522b\u662fC\u3002\u56e0\u4e3aLua\u7684\u6700\u5927\u7528\u9014\u662f\u5728\u5bbf\u4e3b\u7a0b\u5e8f\u4e2d\u4f5c\u4e3a\u811a\u672c\u4f7f\u7528\u7684\u3002<\/p>\n

\u3000\u3000Lua \u7684\u8bed\u6cd5\u6bd4\u8f83\u7b80\u5355\uff0c\u5b66\u4e60\u8d77\u6765\u4e5f\u6bd4\u8f83\u7701\u529b\uff0c\u4f46\u529f\u80fd\u5374\u5e76\u4e0d\u5f31\u3002<\/p>\n

\u3000\u3000\u5728Lua\u4e2d\uff0c\u4e00\u5207\u90fd\u662f\u53d8\u91cf\uff0c\u9664\u4e86\u5173\u952e\u5b57\u3002\u8bf7\u8bb0\u4f4f\u8fd9\u53e5\u8bdd\u3002<\/p>\n

I. \u9996\u5148\u662f\u6ce8\u91ca<\/strong><\/p>\n

\u3000\u3000\u5199\u4e00\u4e2a\u7a0b\u5e8f\uff0c\u603b\u662f\u5c11\u4e0d\u4e86\u6ce8\u91ca\u7684\u3002
\n\u3000\u3000\u5728Lua\u4e2d\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u5355\u884c\u6ce8\u91ca\u548c\u591a\u884c\u6ce8\u91ca\u3002
\n\u3000\u3000\u5355\u884c\u6ce8\u91ca\u4e2d\uff0c\u8fde\u7eed\u4e24\u4e2a\u51cf\u53f7\"--\"\u8868\u793a\u6ce8\u91ca\u7684\u5f00\u59cb\uff0c\u4e00\u76f4\u5ef6\u7eed\u5230\u884c\u672b\u4e3a\u6b62\u3002\u76f8\u5f53\u4e8eC++\u8bed\u8a00\u4e2d\u7684\"\/\/\"\u3002
\n\u3000\u3000\u591a\u884c\u6ce8\u91ca\u4e2d\uff0c\u7531\"--[[\"\u8868\u793a\u6ce8\u91ca\u5f00\u59cb\uff0c\u5e76\u4e14\u4e00\u76f4\u5ef6\u7eed\u5230\"]]\"\u4e3a\u6b62\u3002\u8fd9\u79cd\u6ce8\u91ca\u76f8\u5f53\u4e8eC\u8bed\u8a00\u4e2d\u7684\"\"\u3002\u5728\u6ce8\u91ca\u5f53\u4e2d\uff0c\"[[\"\u548c\"]]\"\u662f\u53ef\u4ee5\u5d4c\u5957\u7684\u3002<\/p>\n

II. Lua\u7f16\u7a0b<\/strong><\/p>\n

\u3000\u3000\u7ecf\u5178\u7684\"Hello world\"\u7684\u7a0b\u5e8f\u603b\u662f\u88ab\u7528\u6765\u5f00\u59cb\u4ecb\u7ecd\u4e00\u79cd\u8bed\u8a00\u3002\u5728Lua\u4e2d\uff0c\u5199\u4e00\u4e2a\u8fd9\u6837\u7684\u7a0b\u5e8f\u5f88\u7b80\u5355\uff1a
\n\u3000\u3000print(\"Hello world\")
\n\u3000\u3000\u5728Lua\u4e2d\uff0c\u8bed\u53e5\u4e4b\u95f4\u53ef\u4ee5\u7528\u5206\u53f7\"\uff1b\"\u9694\u5f00\uff0c\u4e5f\u53ef\u4ee5\u7528\u7a7a\u767d\u9694\u5f00\u3002\u4e00\u822c\u6765\u8bf4\uff0c\u5982\u679c\u591a\u4e2a\u8bed\u53e5\u5199\u5728\u540c\u4e00\u884c\u7684\u8bdd\uff0c\u5efa\u8bae\u603b\u662f\u7528\u5206\u53f7\u9694\u5f00\u3002
\n\u3000\u3000Lua \u6709\u597d\u51e0\u79cd\u7a0b\u5e8f\u63a7\u5236\u8bed\u53e5\uff0c\u5982\uff1a<\/p>\n

\u3000\u3000\u6761\u4ef6\u63a7\u5236\uff1aif \u6761\u4ef6 then \u2026 elseif \u6761\u4ef6 then \u2026 else \u2026 end
\n\u3000\u3000While\u5faa\u73af\uff1awhile \u6761\u4ef6 do \u2026 end
\n\u3000\u3000Repeat\u5faa\u73af\uff1arepeat \u2026 until \u6761\u4ef6
\n\u3000\u3000For\u5faa\u73af\uff1afor \u53d8\u91cf = \u521d\u503c\uff0c\u7ec8\u70b9\u503c\uff0c\u6b65\u8fdb do \u2026 end
\n\u3000\u3000For\u5faa\u73af\uff1afor \u53d8\u91cf1\uff0c\u53d8\u91cf2\uff0c\u2026 \uff0c\u53d8\u91cfN in\u8868\u6216\u679a\u4e3e\u51fd\u6570 do \u2026 end<\/p>\n

\n\u3000\u3000\u6ce8\u610f\u4e00\u4e0b\uff0cfor\u7684\u5faa\u73af\u53d8\u91cf\u603b\u662f\u53ea\u4f5c\u7528\u4e8efor\u7684\u5c40\u90e8\u53d8\u91cf\uff0c\u4f60\u4e5f\u53ef\u4ee5\u7701\u7565\u6b65\u8fdb\u503c\uff0c\u8fd9\u65f6\u5019\uff0cfor\u5faa\u73af\u4f1a\u4f7f\u75281\u4f5c\u4e3a\u6b65\u8fdb\u503c\u3002
\n\u3000\u3000\u4f60\u53ef\u4ee5\u7528break\u6765\u4e2d\u6b62\u4e00\u4e2a\u5faa\u73af\u3002
\n\u3000\u3000\u5982\u679c\u4f60\u6709\u7a0b\u5e8f\u8bbe\u8ba1\u7684\u57fa\u7840\uff0c\u6bd4\u5982\u4f60\u5b66\u8fc7Basic\uff0cC\u4e4b\u7c7b\u7684\uff0c\u4f60\u4f1a\u89c9\u5f97Lua\u4e5f\u4e0d\u96be\u3002\u4f46Lua\u6709\u51e0\u4e2a\u5730\u65b9\u662f\u660e\u663e\u4e0d\u540c\u4e8e\u8fd9\u4e9b\u7a0b\u5e8f\u8bbe\u8ba1\u8bed\u8a00\u7684\uff0c\u6240\u4ee5\u8bf7\u7279\u522b\u6ce8\u610f\u3002<\/p>\n

\u3000\u3000\uff0e\u8bed\u53e5\u5757
\n\u3000\u3000\u3000\u3000\u8bed\u53e5\u5757\u5728C++\u4e2d\u662f\u7528\"{\"\u548c\"}\"\u62ec\u8d77\u6765\u7684\uff0c\u5728Lua\u4e2d\uff0c\u5b83\u662f\u7528do \u548c end \u62ec\u8d77\u6765\u7684\u3002\u6bd4\u5982\uff1a
\n\u3000\u3000\u3000\u3000do print(\"Hello\") end
\n\u3000\u3000\u3000\u3000\u4f60\u53ef\u4ee5\u5728 \u51fd\u6570 \u4e2d\u548c \u8bed\u53e5\u5757 \u4e2d\u5b9a\u5c40\u90e8\u53d8\u91cf\u3002<\/p>\n

\u3000\u3000\uff0e\u8d4b\u503c\u8bed\u53e5
\n\u3000\u3000\u3000\u3000\u8d4b\u503c\u8bed\u53e5\u5728Lua\u88ab\u5f3a\u5316\u4e86\u3002\u5b83\u53ef\u4ee5\u540c\u65f6\u7ed9\u591a\u4e2a\u53d8\u91cf\u8d4b\u503c\u3002
\n\u3000\u3000\u3000\u3000\u4f8b\u5982\uff1a
\n\u3000\u3000\u3000\u3000a,b,c,d=1,2,3,4
\n\u3000\u3000\u3000\u3000\u751a\u81f3\u662f\uff1a
\n\u3000\u3000\u3000\u3000a,b=b,a -- \u591a\u4e48\u65b9\u4fbf\u7684\u4ea4\u6362\u53d8\u91cf\u529f\u80fd\u554a\u3002
\n\u3000\u3000\u3000\u3000\u5728\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53d8\u91cf\u603b\u662f\u8ba4\u4e3a\u662f\u5168\u5c40\u7684\u3002\u5047\u5982\u4f60\u8981\u5b9a\u4e49\u5c40\u90e8\u53d8\u91cf\uff0c\u5219\u5728\u7b2c\u4e00\u6b21\u8d4b\u503c\u7684\u65f6\u5019\uff0c\u9700\u8981\u7528local\u8bf4\u660e\u3002\u6bd4\u5982\uff1a
\n\u3000\u3000\u3000\u3000local a,b,c = 1,2,3 -- a,b,c\u90fd\u662f\u5c40\u90e8\u53d8\u91cf<\/p>\n

\u3000\u3000\uff0e\u6570\u503c\u8fd0\u7b97
\n\u3000\u3000\u3000\u3000\u548cC\u8bed\u8a00\u4e00\u6837\uff0c\u652f\u6301 +, -, *, \/\u3002\u4f46Lua\u8fd8\u591a\u4e86\u4e00\u4e2a\"^\"\u3002\u8fd9\u8868\u793a\u6307\u6570\u4e58\u65b9\u8fd0\u7b97\u3002\u6bd4\u59822^3 \u7ed3\u679c\u4e3a8,
\n2^4\u7ed3\u679c\u4e3a16\u3002
\n\u3000\u3000\u3000\u3000\u8fde\u63a5\u4e24\u4e2a\u5b57\u7b26\u4e32\uff0c\u53ef\u4ee5\u7528\"..\"\u8fd0\u5904\u7b26\u3002\u5982\uff1a
\n\u3000\u3000\u3000\u3000\"This a \" .. \"string.\" -- \u7b49\u4e8e \"this a string\"<\/p>\n

\u3000\u3000\uff0e\u6bd4\u8f83\u8fd0\u7b97
\n\u3000\u3000\u3000\u3000< > <=
\n>= == ~=
\n\u3000\u3000\u3000\u3000\u5206\u522b\u8868\u793a \u5c0f\u4e8e\uff0c\u5927\u4e8e\uff0c\u4e0d\u5927\u4e8e\uff0c\u4e0d\u5c0f\u4e8e\uff0c\u76f8\u7b49\uff0c\u4e0d\u76f8\u7b49
\n\u3000\u3000\u3000\u3000\u6240\u6709\u8fd9\u4e9b\u64cd\u4f5c\u7b26\u603b\u662f\u8fd4\u56detrue\u6216false\u3002
\n\u3000\u3000\u3000\u3000\u5bf9\u4e8eTable\uff0cFunction\u548cUserdata\u7c7b\u578b\u7684\u6570\u636e\uff0c\u53ea\u6709 == \u548c
\n~=\u53ef\u4ee5\u7528\u3002\u76f8\u7b49\u8868\u793a\u4e24\u4e2a\u53d8\u91cf\u5f15\u7528\u7684\u662f\u540c\u4e00\u4e2a\u6570\u636e\u3002\u6bd4\u5982\uff1a
\n\u3000\u3000\u3000\u3000a={1,2}
\n\u3000\u3000\u3000\u3000b=a
\n\u3000\u3000\u3000\u3000print(a==b, a~=b) -- true, false
\n\u3000\u3000\u3000\u3000a={1,2}
\n\u3000\u3000\u3000\u3000b={1,2}
\n\u3000\u3000\u3000\u3000print(a==b, a~=b) -- false, true<\/p>\n

\u3000\u3000\uff0e\u903b\u8f91\u8fd0\u7b97
\n\u3000\u3000\u3000\u3000and, or, not
\n\u3000\u3000\u3000\u3000\u5176\u4e2d\uff0cand \u548c or \u4e0eC\u8bed\u8a00\u533a\u522b\u7279\u522b\u5927\u3002
\n\u3000\u3000\u3000\u3000\u5728\u8fd9\u91cc\uff0c\u8bf7\u5148\u8bb0\u4f4f\uff0c\u5728Lua\u4e2d\uff0c\u53ea\u6709false\u548cnil\u624d\u8ba1\u7b97\u4e3afalse\uff0c\u5176\u5b83\u4efb\u4f55\u6570\u636e\u90fd\u8ba1\u7b97\u4e3atrue\uff0c0\u4e5f\u662ftrue\uff01<\/p>\n

\u3000\u3000\u3000\u3000and \u548c or\u7684\u8fd0\u7b97\u7ed3\u679c\u4e0d\u662ftrue\u548cfalse\uff0c\u800c\u662f\u548c\u5b83\u7684\u4e24\u4e2a\u64cd\u4f5c\u6570\u76f8\u5173\u3002
\n\u3000\u3000\u3000\u3000a and b\uff1a\u5982\u679ca\u4e3afalse\uff0c\u5219\u8fd4\u56dea\uff1b\u5426\u5219\u8fd4\u56deb
\n\u3000\u3000\u3000\u3000a or b\uff1a\u5982\u679c a \u4e3atrue\uff0c\u5219\u8fd4\u56dea\uff1b\u5426\u5219\u8fd4\u56deb<\/p>\n

\u3000\u3000\u3000\u3000\u4e3e\u51e0\u4e2a\u4f8b\u5b50\uff1a
\n\u3000\u3000\u3000\u3000 print(4 and 5) --> 5
\n\u3000\u3000\u3000\u3000 print(nil and 13) --> nil
\n\u3000\u3000\u3000\u3000 print(false and 13) --> false
\n\u3000\u3000\u3000\u3000 print(4 or 5) --> 4
\n\u3000\u3000\u3000\u3000 print(false or 5) --> 5<\/p>\n

\u3000\u3000\u3000\u3000\u5728Lua\u4e2d\u8fd9\u662f\u5f88\u6709\u7528\u7684\u7279\u6027\uff0c\u4e5f\u662f\u6bd4\u8f83\u4ee4\u4eba\u6df7\u6d27\u7684\u7279\u6027\u3002
\n\u3000\u3000\u3000\u3000\u6211\u4eec\u53ef\u4ee5\u6a21\u62dfC\u8bed\u8a00\u4e2d\u7684\u8bed\u53e5\uff1ax = a? b : c\uff0c\u5728Lua\u4e2d\uff0c\u53ef\u4ee5\u5199\u6210\uff1ax = a and b or c\u3002
\n\u3000\u3000\u3000\u3000\u6700\u6709\u7528\u7684\u8bed\u53e5\u662f\uff1a x = x or v\uff0c\u5b83\u76f8\u5f53\u4e8e\uff1aif not x then x = v end \u3002<\/p>\n

\u3000\u3000\uff0e\u8fd0\u7b97\u7b26\u4f18\u5148\u7ea7\uff0c\u4ece\u9ad8\u5230\u4f4e\u987a\u5e8f\u5982\u4e0b\uff1a
\n\u3000\u3000\u3000\u3000^
\n\u3000\u3000\u3000\u3000not - \uff08\u4e00\u5143\u8fd0\u7b97\uff09
\n\u3000\u3000\u3000\u3000 * \/
\n\u3000\u3000\u3000\u3000 + -
\n\u3000\u3000\u3000\u3000 ..\uff08\u5b57\u7b26\u4e32\u8fde\u63a5\uff09
\n\u3000\u3000\u3000\u3000 < > <=
\n>= ~= ==
\n\u3000\u3000\u3000\u3000 and
\n\u3000\u3000\u3000\u3000 or<\/p>\n

III. \u5173\u952e\u5b57<\/strong><\/p>\n

\u3000\u3000\u5173\u952e\u5b57\u662f\u4e0d\u80fd\u505a\u4e3a\u53d8\u91cf\u7684\u3002Lua\u7684\u5173\u952e\u5b57\u4e0d\u591a\uff0c\u5c31\u4ee5\u4e0b\u51e0\u4e2a\uff1a
\n\u3000\u3000and break do else elseif
\n\u3000\u3000end false for function if
\n\u3000\u3000in local nil not or
\n\u3000\u3000repeat return then true until\u3000while<\/p>\n

IV. \u53d8\u91cf\u7c7b\u578b<\/strong><\/p>\n

\u3000\u3000\u600e\u4e48\u786e\u5b9a\u4e00\u4e2a\u53d8\u91cf\u662f\u4ec0\u4e48\u7c7b\u578b\u7684\u5462\uff1f\u5927\u5bb6\u53ef\u4ee5\u7528type()\u51fd\u6570\u6765\u68c0\u67e5\u3002Lua\u652f\u6301\u7684\u7c7b\u578b\u6709\u4ee5\u4e0b\u51e0\u79cd\uff1a<\/p>\n

\u3000\u3000Nil \u7a7a\u503c\uff0c\u6240\u6709\u6ca1\u6709\u4f7f\u7528\u8fc7\u7684\u53d8\u91cf\uff0c\u90fd\u662fnil\u3002nil\u65e2\u662f\u503c\uff0c\u53c8\u662f\u7c7b\u578b\u3002
\n\u3000\u3000Boolean \u5e03\u5c14\u503c
\n\u3000\u3000Number \u6570\u503c\uff0c\u5728Lua\u91cc\uff0c\u6570\u503c\u76f8\u5f53\u4e8eC\u8bed\u8a00\u7684double
\n\u3000\u3000String \u5b57\u7b26\u4e32\uff0c\u5982\u679c\u4f60\u613f\u610f\u7684\u8bdd\uff0c\u5b57\u7b26\u4e32\u662f\u53ef\u4ee5\u5305\u542b''\u5b57\u7b26\u7684
\n\u3000\u3000Table \u5173\u7cfb\u8868\u7c7b\u578b\uff0c\u8fd9\u4e2a\u7c7b\u578b\u529f\u80fd\u6bd4\u8f83\u5f3a\u5927\uff0c\u6211\u4eec\u5728\u540e\u9762\u6162\u6162\u8bf4\u3002
\n\u3000\u3000Function \u51fd\u6570\u7c7b\u578b\uff0c\u4e0d\u8981\u6000\u7591\uff0c\u51fd\u6570\u4e5f\u662f\u4e00\u79cd\u7c7b\u578b\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u6240\u6709\u7684\u51fd\u6570\uff0c\u5b83\u672c\u8eab\u5c31\u662f\u4e00\u4e2a\u53d8\u91cf\u3002
\n\u3000\u3000Userdata
\n\u55ef\uff0c\u8fd9\u4e2a\u7c7b\u578b\u4e13\u95e8\u7528\u6765\u548cLua\u7684\u5bbf\u4e3b\u6253\u4ea4\u9053\u7684\u3002\u5bbf\u4e3b\u901a\u5e38\u662f\u7528C\u548cC++\u6765\u7f16\u5199\u7684\uff0c\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0cUserdata\u53ef\u4ee5\u662f\u5bbf\u4e3b\u7684\u4efb\u610f\u6570\u636e\u7c7b\u578b\uff0c\u5e38\u7528\u7684\u6709Struct\u548c\u6307\u9488\u3002<\/p>\n

\u3000\u3000Thread\u3000\u3000
\n\u7ebf\u7a0b\u7c7b\u578b\uff0c\u5728Lua\u4e2d\u6ca1\u6709\u771f\u6b63\u7684\u7ebf\u7a0b\u3002Lua\u4e2d\u53ef\u4ee5\u5c06\u4e00\u4e2a\u51fd\u6570\u5206\u6210\u51e0\u90e8\u4efd\u8fd0\u884c\u3002\u5982\u679c\u611f\u5174\u8da3\u7684\u8bdd\uff0c\u53ef\u4ee5\u53bb\u770b\u770bLua\u7684\u6587\u6863\u3002<\/p>\n

V. \u53d8\u91cf\u7684\u5b9a\u4e49<\/strong><\/p>\n

\n\u3000\u3000\u6240\u6709\u7684\u8bed\u8a00\uff0c\u90fd\u8981\u7528\u5230\u53d8\u91cf\u3002\u5728Lua\u4e2d\uff0c\u4e0d\u7ba1\u4f60\u5728\u4ec0\u4e48\u5730\u65b9\u4f7f\u7528\u53d8\u91cf\uff0c\u90fd\u4e0d\u9700\u8981\u58f0\u660e\uff0c\u5e76\u4e14\u6240\u6709\u7684\u8fd9\u4e9b\u53d8\u91cf\u603b\u662f\u5168\u5c40\u53d8\u91cf\uff0c\u9664\u975e\uff0c\u4f60\u5728\u524d\u9762\u52a0\u4e0a\"local\"\u3002<\/p>\n

\u3000\u3000\u8fd9\u4e00\u70b9\u8981\u7279\u522b\u6ce8\u610f\uff0c\u56e0\u4e3a\u4f60\u53ef\u80fd\u60f3\u5728\u51fd\u6570\u91cc\u4f7f\u7528\u5c40\u90e8\u53d8\u91cf\uff0c\u5374\u5fd8\u4e86\u7528local\u6765\u8bf4\u660e\u3002
\n\u3000\u3000\u81f3\u4e8e\u53d8\u91cf\u540d\u5b57\uff0c\u5b83\u662f\u5927\u5c0f\u5199\u76f8\u5173\u7684\u3002\u4e5f\u5c31\u662f\u8bf4\uff0cA\u548ca\u662f\u4e24\u4e2a\u4e0d\u540c\u7684\u53d8\u91cf\u3002
\n\u3000\u3000\u5b9a\u4e49\u4e00\u4e2a\u53d8\u91cf\u7684\u65b9\u6cd5\u5c31\u662f\u8d4b\u503c\u3002\"\uff1d\"\u64cd\u4f5c\u5c31\u662f\u7528\u6765\u8d4b\u503c\u7684
\n\u3000\u3000\u6211\u4eec\u4e00\u8d77\u6765\u5b9a\u4e49\u51e0\u79cd\u5e38\u7528\u7c7b\u578b\u7684\u53d8\u91cf\u5427\u3002
\n\u3000\u3000A. Nil
\n\u3000\u3000\u3000\u3000\u6b63\u5982\u524d\u9762\u6240\u8bf4\u7684\uff0c\u6ca1\u6709\u4f7f\u7528\u8fc7\u7684\u53d8\u91cf\u7684\u503c\uff0c\u90fd\u662fNil\u3002\u6709\u65f6\u5019\u6211\u4eec\u4e5f\u9700\u8981\u5c06\u4e00\u4e2a\u53d8\u91cf\u6e05\u9664\uff0c\u8fd9\u65f6\u5019\uff0c\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u7ed9\u53d8\u91cf\u8d4b\u4ee5nil\u503c\u3002\u5982\uff1a<\/p>\n

\u3000\u3000\u3000\u3000var1=nil -- \u8bf7\u6ce8\u610f nil \u4e00\u5b9a\u8981\u5c0f\u5199<\/p>\n

\u3000\u3000B. Boolean
\n\u3000\u3000\u3000\u3000\u5e03\u5c14\u503c\u901a\u5e38\u662f\u7528\u5728\u8fdb\u884c\u6761\u4ef6\u5224\u65ad\u7684\u65f6\u5019\u3002\u5e03\u5c14\u503c\u6709\u4e24\u79cd\uff1atrue \u548c
\nfalse\u3002\u5728Lua\u4e2d\uff0c\u53ea\u6709false\u548cnil\u624d\u88ab\u8ba1\u7b97\u4e3afalse\uff0c\u800c\u6240\u6709\u4efb\u4f55\u5176\u5b83\u7c7b\u578b\u7684\u503c\uff0c\u90fd\u662ftrue\u3002\u6bd4\u59820\uff0c\u7a7a\u4e32\u7b49\u7b49\uff0c\u90fd\u662ftrue\u3002\u4e0d\u8981\u88abC\u8bed\u8a00\u7684\u4e60\u60ef\u6240\u8bef\u5bfc\uff0c0\u5728Lua\u4e2d\u7684\u7684\u786e\u786e\u662ftrue\u3002\u4f60\u4e5f\u53ef\u4ee5\u76f4\u63a5\u7ed9\u4e00\u4e2a\u53d8\u91cf\u8d4b\u4ee5Boolean\u7c7b\u578b\u7684\u503c\uff0c\u5982\uff1a<\/p>\n

\u3000\u3000\u3000\u3000varboolean = true<\/p>\n

\u3000\u3000C. Number
\n\u3000\u3000\u3000\u3000\u5728Lua\u4e2d\uff0c\u662f\u6ca1\u6709\u6574\u6570\u7c7b\u578b\u7684\uff0c\u4e5f\u4e0d\u9700\u8981\u3002\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u53ea\u8981\u6570\u503c\u4e0d\u662f\u5f88\u5927\uff08\u6bd4\u5982\u4e0d\u8d85\u8fc7100,000,000,000,000\uff09\uff0c\u662f\u4e0d\u4f1a\u4ea7\u751f\u820d\u5165\u8bef\u5dee\u7684\u3002\u5728\u5f88\u591aCPU\u4e0a\uff0c\u5b9e\u6570\u7684\u8fd0\u7b97\u5e76\u4e0d\u6bd4\u6574\u6570\u6162\u3002<\/p>\n

\u3000\u3000\u3000\u3000\u5b9e\u6570\u7684\u8868\u793a\u65b9\u6cd5\uff0c\u540cC\u8bed\u8a00\u7c7b\u4f3c\uff0c\u5982\uff1a
\n\u3000\u3000\u3000\u30004 0.4 4.57e-3 0.3e12 5e+20<\/p>\n

\u3000\u3000D. String
\n\u3000\u3000\u3000\u3000\u5b57\u7b26\u4e32\uff0c\u603b\u662f\u4e00\u79cd\u975e\u5e38\u5e38\u7528\u7684\u9ad8\u7ea7\u7c7b\u578b\u3002\u5728Lua\u4e2d\uff0c\u4f60\u53ef\u4ee5\u975e\u5e38\u65b9\u4fbf\u7684\u5b9a\u4e49\u5f88\u957f\u5f88\u957f\u7684\u5b57\u7b26\u4e32\u3002
\n\u3000\u3000\u3000\u3000\u5b57\u7b26\u4e32\u5728Lua\u4e2d\u6709\u51e0\u79cd\u65b9\u6cd5\u6765\u8868\u793a\uff0c\u6700\u901a\u7528\u7684\u65b9\u6cd5\uff0c\u662f\u7528\u53cc\u5f15\u53f7\u6216\u5355\u5f15\u53f7\u6765\u62ec\u8d77\u4e00\u4e2a\u5b57\u7b26\u4e32\u7684\uff0c\u5982\uff1a
\n\u3000\u3000\u3000\u3000\"This is a string.\"
\n\u3000\u3000\u3000\u3000\u548cC\u8bed\u8a00\u76f8\u540c\u7684\uff0c\u5b83\u652f\u6301\u4e00\u4e9b\u8f6c\u4e49\u5b57\u7b26\uff0c\u5217\u8868\u5982\u4e0b\uff1a
\n\u3000\u3000\u3000\u3000\\a bell
\n\u3000\u3000\u3000\u3000\\b back space
\n\u3000\u3000\u3000\u3000\\f form feed
\n\u3000\u3000\u3000\u3000\\n newline
\n\u3000\u3000\u3000\u3000\\r carriage return
\n\u3000\u3000\u3000\u3000\\t horizontal tab
\n\u3000\u3000\u3000\u3000\\v vertical tab
\n\u3000\u3000\u3000\u3000\\\\ backslash
\n\u3000\u3000\u3000\u3000\\\" double quote
\n\u3000\u3000\u3000\u3000\\' single quote
\n\u3000\u3000\u3000\u3000\\[ left square bracket
\n\u3000\u3000\u3000\u3000\\] right square bracket<\/p>\n

\n\u3000\u3000\u3000\u3000\u7531\u4e8e\u8fd9\u79cd\u5b57\u7b26\u4e32\u53ea\u80fd\u5199\u5728\u4e00\u884c\u4e2d\uff0c\u56e0\u6b64\uff0c\u4e0d\u53ef\u907f\u514d\u7684\u8981\u7528\u5230\u8f6c\u4e49\u5b57\u7b26\u3002\u52a0\u5165\u4e86\u8f6c\u4e49\u5b57\u7b26\u7684\u4e32\uff0c\u770b\u8d77\u6765\u5b9e\u5728\u662f\u4e0d\u6562\u606d\u7ef4\uff0c\u6bd4\u5982\uff1a
\n\u3000\u3000\u3000\u3000\"one line\\nnext line\\n\\\"in quotes\\\", 'in quotes'\"
\n\u3000\u3000\u3000\u3000\u4e00\u5927\u5806\u7684\"\\\"\u7b26\u53f7\u8ba9\u4eba\u770b\u8d77\u6765\u5f88\u5012\u80c3\u53e3\u3002\u5982\u679c\u4f60\u4e0e\u6211\u6709\u540c\u611f\uff0c\u90a3\u4e48\uff0c\u6211\u4eec\u5728Lua\u4e2d\uff0c\u53ef\u4ee5\u7528\u53e6\u4e00\u79cd\u8868\u793a\u65b9\u6cd5\uff1a\u7528\"[[\"\u548c\"]]\"\u5c06\u591a\u884c\u7684\u5b57\u7b26\u4e32\u62ec\u8d77\u6765\uff0c\u5982\uff1a<\/p>\n

\u3000\u3000\u3000\u3000page = [[
\n\u3000\u3000\u3000\u3000<HTML>
\n\u3000\u3000\u3000\u3000\u3000\u3000<HEAD>
\n\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000<TITLE>An HTML
\nPage<\/TITLE>
\n\u3000\u3000\u3000\u3000\u3000\u3000<\/HEAD>
\n\u3000\u3000\u3000\u3000\u3000\u3000<BODY>
\n\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000<A HREF=\"http:\/\/www.lua.org\">Lua<\/A<\/font><\/a>><\/p>\n

\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000[[a text between double brackets]]
\n\u3000\u3000\u3000\u3000\u3000\u3000<\/BODY>
\n\u3000\u3000\u3000\u3000<\/HTML>
\n\u3000\u3000\u3000\u3000]]<\/p>\n

\n\u3000\u3000\u3000\u3000\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u5728\u8fd9\u79cd\u5b57\u7b26\u4e32\u4e2d\uff0c\u5982\u679c\u542b\u6709\u5355\u72ec\u4f7f\u7528\u7684\"[[\"\u6216\"]]\"\u5c31\u4ecd\u7136\u5f97\u7528\"\\[\"\u6216\"\\]\"\u6765\u907f\u514d\u6b67\u4e49\u3002\u5f53\u7136\uff0c\u8fd9\u79cd\u60c5\u51b5\u662f\u6781\u5c11\u4f1a\u53d1\u751f\u7684\u3002<\/p>\n

\u00a0<\/p>\n\n\n\n
\n

\u00a0<\/p>\n

E. Table
\n\u3000\u3000\u3000\u3000\u5173\u7cfb\u8868\u7c7b\u578b\uff0c\u8fd9\u662f\u4e00\u4e2a\u5f88\u5f3a\u5927\u7684\u7c7b\u578b\u3002\u6211\u4eec\u53ef\u4ee5\u628a\u8fd9\u4e2a\u7c7b\u578b\u770b\u4f5c\u662f\u4e00\u4e2a\u6570\u7ec4\u3002\u53ea\u662fC\u8bed\u8a00\u7684\u6570\u7ec4\uff0c\u53ea\u80fd\u7528\u6b63\u6574\u6570\u6765\u4f5c\u7d22\u5f15\uff1b\u5728Lua\u4e2d\uff0c\u4f60\u53ef\u4ee5\u7528\u4efb\u610f\u7c7b\u578b\u6765\u4f5c\u6570\u7ec4\u7684\u7d22\u5f15\uff0c\u9664\u4e86nil\u3002\u540c\u6837\uff0c\u5728C\u8bed\u8a00\u4e2d\uff0c\u6570\u7ec4\u7684\u5185\u5bb9\u53ea\u5141\u8bb8\u4e00\u79cd\u7c7b\u578b\uff1b\u5728Lua\u4e2d\uff0c\u4f60\u4e5f\u53ef\u4ee5\u7528\u4efb\u610f\u7c7b\u578b\u7684\u503c\u6765\u4f5c\u6570\u7ec4\u7684\u5185\u5bb9\uff0c\u9664\u4e86nil\u3002<\/p>\n

\u3000\u3000\u3000\u3000Table\u7684\u5b9a\u4e49\u5f88\u7b80\u5355\uff0c\u5b83\u7684\u4e3b\u8981\u7279\u5f81\u662f\u7528\"{\"\u548c\"}\"\u6765\u62ec\u8d77\u4e00\u7cfb\u5217\u6570\u636e\u5143\u7d20\u7684\u3002\u6bd4\u5982\uff1a<\/p>\n

\u3000\u3000\u3000\u3000T1 = {} -- \u5b9a\u4e49\u4e00\u4e2a\u7a7a\u8868
\n\u3000\u3000\u3000\u3000T1[1]=10 -- \u7136\u540e\u6211\u4eec\u5c31\u53ef\u4ee5\u8c61C\u8bed\u8a00\u4e00\u6837\u6765\u4f7f\u7528\u5b83\u4e86\u3002
\n\u3000\u3000\u3000\u3000T1[\"John\"]={Age=27, Gender=\"Male\"}
\n\u3000\u3000\u3000\u3000\u8fd9\u4e00\u53e5\u76f8\u5f53\u4e8e\uff1a
\n\u3000\u3000\u3000\u3000T1[\"John\"]={} -- \u5fc5\u987b\u5148\u5b9a\u4e49\u6210\u4e00\u4e2a\u8868\uff0c\u8fd8\u8bb0\u5f97\u672a\u5b9a\u4e49\u7684\u53d8\u91cf\u662fnil\u7c7b\u578b\u5417
\n\u3000\u3000\u3000\u3000T1[\"John\"][\"Age\"]=27
\n\u3000\u3000\u3000\u3000T1[\"John\"][\"Gender\"]=\"Male\"
\n\u3000\u3000\u3000\u3000\u5f53\u8868\u7684\u7d22\u5f15\u662f\u5b57\u7b26\u4e32\u7684\u65f6\u5019\uff0c\u6211\u4eec\u53ef\u4ee5\u7b80\u5199\u6210\uff1a
\n\u3000\u3000\u3000\u3000T1.John={}
\n\u3000\u3000\u3000\u3000T1.John.Age=27
\n\u3000\u3000\u3000\u3000T1.John.Gender=\"Male\"
\n\u3000\u3000\u3000\u3000\u6216
\n\u3000\u3000\u3000\u3000T1.John{Age=27, Gender=\"Male\"}
\n\u3000\u3000\u3000\u3000\u8fd9\u662f\u4e00\u4e2a\u5f88\u5f3a\u7684\u7279\u6027\u3002<\/p>\n

\n\u3000\u3000\u3000\u3000\u5728\u5b9a\u4e49\u8868\u7684\u65f6\u5019\uff0c\u6211\u4eec\u53ef\u4ee5\u628a\u6240\u6709\u7684\u6570\u636e\u5185\u5bb9\u4e00\u8d77\u5199\u5728\"{\"\u548c\"}\"\u4e4b\u95f4\uff0c\u8fd9\u6837\u5b50\u662f\u975e\u5e38\u65b9\u4fbf\uff0c\u800c\u4e14\u5f88\u597d\u770b\u3002\u6bd4\u5982\uff0c\u524d\u9762\u7684T1\u7684\u5b9a\u4e49\uff0c\u6211\u4eec\u53ef\u4ee5\u8fd9\u4e48\u5199\uff1a<\/p>\n

\u3000\u3000\u3000\u3000T1=
\n\u3000\u3000\u3000\u3000{
\n\u3000\u3000\u3000\u3000\u3000\u300010, -- \u76f8\u5f53\u4e8e [1] = 10
\n\u3000\u3000\u3000\u3000\u3000\u3000[100] = 40,
\n\u3000\u3000\u3000\u3000\u3000\u3000John= -- \u5982\u679c\u4f60\u539f\u610f\uff0c\u4f60\u8fd8\u53ef\u4ee5\u5199\u6210\uff1a[\"John\"] =
\n\u3000\u3000\u3000\u3000\u3000\u3000{
\n\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000Age=27, -- \u5982\u679c\u4f60\u539f\u610f\uff0c\u4f60\u8fd8\u53ef\u4ee5\u5199\u6210\uff1a[\"Age\"] =27
\n\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000Gender=Male -- \u5982\u679c\u4f60\u539f\u610f\uff0c\u4f60\u8fd8\u53ef\u4ee5\u5199\u6210\uff1a[\"Gender\"] =Male
\n\u3000\u3000\u3000\u3000\u3000\u3000},
\n\u3000\u3000\u3000\u3000\u3000\u300020 -- \u76f8\u5f53\u4e8e [2] = 20
\n\u3000\u3000\u3000\u3000}<\/p>\n

\u3000\u3000\u3000\u3000\u770b\u8d77\u6765\u5f88\u6f02\u4eae\uff0c\u4e0d\u662f\u5417\uff1f\u6211\u4eec\u5728\u5199\u7684\u65f6\u5019\uff0c\u9700\u8981\u6ce8\u610f\u4e09\u70b9\uff1a
\n\u3000\u3000\u3000\u3000\u7b2c\u4e00\uff0c\u6240\u6709\u5143\u7d20\u4e4b\u95f4\uff0c\u603b\u662f\u7528\u9017\u53f7\"\uff0c\"\u9694\u5f00\uff1b
\n\u3000\u3000\u3000\u3000\u7b2c\u4e8c\uff0c\u6240\u6709\u7d22\u5f15\u503c\u90fd\u9700\u8981\u7528\"[\"\u548c\"]\"\u62ec\u8d77\u6765\uff1b\u5982\u679c\u662f\u5b57\u7b26\u4e32\uff0c\u8fd8\u53ef\u4ee5\u53bb\u6389\u5f15\u53f7\u548c\u4e2d\u62ec\u53f7\uff1b
\n\u3000\u3000\u3000\u3000\u7b2c\u4e09\uff0c\u5982\u679c\u4e0d\u5199\u7d22\u5f15\uff0c\u5219\u7d22\u5f15\u5c31\u4f1a\u88ab\u8ba4\u4e3a\u662f\u6570\u5b57\uff0c\u5e76\u6309\u987a\u5e8f\u81ea\u52a8\u4ece1\u5f80\u540e\u7f16\uff1b<\/p>\n

\u3000\u3000\u3000\u3000\u8868\u7c7b\u578b\u7684\u6784\u9020\u662f\u5982\u6b64\u7684\u65b9\u4fbf\uff0c\u4ee5\u81f4\u4e8e\u5e38\u5e38\u88ab\u4eba\u7528\u6765\u4ee3\u66ff\u914d\u7f6e\u6587\u4ef6\u3002\u662f\u7684\uff0c\u4e0d\u7528\u6000\u7591\uff0c\u5b83\u6bd4ini\u6587\u4ef6\u8981\u6f02\u4eae\uff0c\u5e76\u4e14\u5f3a\u5927\u7684\u591a\u3002<\/p>\n

\u3000\u3000F. Function
\n\u3000\u3000\u3000\u3000\u51fd\u6570\uff0c\u5728Lua\u4e2d\uff0c\u51fd\u6570\u7684\u5b9a\u4e49\u4e5f\u5f88\u7b80\u5355\u3002\u5178\u578b\u7684\u5b9a\u4e49\u5982\u4e0b\uff1a
\n\u3000\u3000\u3000\u3000function add(a,b) -- add \u662f\u51fd\u6570\u540d\u5b57\uff0ca\u548cb\u662f\u53c2\u6570\u540d\u5b57
\n\u3000\u3000\u3000\u3000 return a+b -- return \u7528\u6765\u8fd4\u56de\u51fd\u6570\u7684\u8fd0\u884c\u7ed3\u679c
\n\u3000\u3000\u3000\u3000end<\/p>\n

\u3000\u3000\u3000\u3000\u8bf7\u6ce8\u610f\uff0creturn\u8bed\u8a00\u4e00\u5b9a\u8981\u5199\u5728end\u4e4b\u524d\u3002\u5047\u5982\u4f60\u975e\u8981\u5728\u4e2d\u95f4\u653e\u4e0a\u4e00\u53e5return\uff0c\u90a3\u4e48\u8bf7\u5199\u6210\uff1ado return
\nend\u3002
\n\u3000\u3000\u3000\u3000\u8fd8\u8bb0\u5f97\u524d\u9762\u8bf4\u8fc7\uff0c\u51fd\u6570\u4e5f\u662f\u53d8\u91cf\u7c7b\u578b\u5417\uff1f\u4e0a\u9762\u7684\u51fd\u6570\u5b9a\u4e49\uff0c\u5176\u5b9e\u76f8\u5f53\u4e8e\uff1a
\n\u3000\u3000\u3000\u3000add = function (a,b) return a+b end
\n\u3000\u3000\u3000\u3000\u5f53\u4f60\u91cd\u65b0\u7ed9add\u8d4b\u503c\u65f6\uff0c\u5b83\u5c31\u4e0d\u518d\u8868\u793a\u8fd9\u4e2a\u51fd\u6570\u4e86\u3002\u4f60\u751a\u81f3\u53ef\u4ee5\u8d4b\u7ed9add\u4efb\u610f\u6570\u636e\uff0c\u5305\u62ecnil
\n\uff08\u8fd9\u6837\uff0c\u4f60\u5c31\u6e05\u9664\u4e86add\u53d8\u91cf\uff09\u3002Function\u662f\u4e0d\u662f\u5f88\u8c61C\u8bed\u8a00\u7684\u51fd\u6570\u6307\u9488\u5462\uff1f<\/p>\n

\u3000\u3000\u3000\u3000\u548cC\u8bed\u8a00\u4e00\u6837\uff0cLua\u7684\u51fd\u6570\u53ef\u4ee5\u63a5\u53d7\u53ef\u53d8\u53c2\u6570\u4e2a\u6570\uff0c\u5b83\u540c\u6837\u662f\u7528\"\u2026\"\u6765\u5b9a\u4e49\u7684\uff0c\u6bd4\u5982\uff1a
\n\u3000\u3000\u3000\u3000function sum (a,b,\u2026)
\n\u3000\u3000\u3000\u3000\u5982\u679c\u60f3\u53d6\u5f97\u2026\u6240\u4ee3\u8868\u7684\u53c2\u6570\uff0c\u53ef\u4ee5\u5728\u51fd\u6570\u4e2d\u8bbf\u95eearg\u5c40\u90e8\u53d8\u91cf\uff08\u8868\u7c7b\u578b\uff09\u5f97\u5230\u3002
\n\u3000\u3000\u3000\u3000\u5982 sum(1,2,3,4)
\n\u3000\u3000\u3000\u3000\u5219\uff0c\u5728\u51fd\u6570\u4e2d\uff0ca = 1, b = 2, arg = {3, 4}
\n\u3000\u3000\u3000\u3000\u66f4\u53ef\u8d35\u7684\u662f\uff0c\u5b83\u53ef\u4ee5\u540c\u65f6\u8fd4\u56de\u591a\u4e2a\u7ed3\u679c\uff0c\u6bd4\u5982\uff1a
\n\u3000\u3000\u3000\u3000function s()
\n\u3000\u3000\u3000\u3000\u3000\u3000return 1,2,3,4
\n\u3000\u3000\u3000\u3000end
\n\u3000\u3000\u3000\u3000a,b,c,d = s() -- \u6b64\u65f6\uff0ca = 1, b = 2, c = 3, d = 4
\n\u524d\u9762\u8bf4\u8fc7\uff0c\u8868\u7c7b\u578b\u53ef\u4ee5\u62e5\u6709\u4efb\u610f\u7c7b\u578b\u7684\u503c\uff0c\u5305\u62ec\u51fd\u6570\uff01\u56e0\u6b64\uff0c\u6709\u4e00\u4e2a\u5f88\u5f3a\u5927\u7684\u7279\u6027\u662f\uff0c\u62e5\u6709\u51fd\u6570\u7684\u8868\uff0c\u54e6\uff0c\u6211\u60f3\u66f4\u6070\u5f53\u7684\u5e94\u8be5\u8bf4\u662f\u5bf9\u8c61\u5427\u3002Lua\u53ef\u4ee5\u4f7f\u7528\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u4e86\u3002\u4e0d\u4fe1\uff1f\u90a3\u6211\u4e3e\u4f8b\u5982\u4e0b\uff1a<\/p>\n

\u3000\u3000\u3000\u3000t =
\n\u3000\u3000\u3000\u3000{
\n\u3000\u3000\u3000\u3000 Age = 27
\n\u3000\u3000\u3000\u3000 add = function(self, n) self.Age = self.Age+n end
\n\u3000\u3000\u3000\u3000}
\n\u3000\u3000\u3000\u3000print(t.Age) -- 27
\n\u3000\u3000\u3000\u3000t.add(t, 10)
\n\u3000\u3000\u3000\u3000print(t.Age) -- 37<\/p>\n

\u3000\u3000\u3000\u3000\u4e0d\u8fc7\uff0ct.add(t,10) \u8fd9\u4e00\u53e5\u5b9e\u5728\u662f\u6709\u70b9\u571f\u5bf9\u5427\uff1f\u6ca1\u5173\u7cfb\uff0c\u5728Lua\u4e2d\uff0c\u4f60\u53ef\u4ee5\u7b80\u5199\u6210\uff1a
\n\u3000\u3000\u3000\u3000t:add(10) -- \u76f8\u5f53\u4e8e t.add(t,10)<\/p>\n

\u3000\u3000G. Userdata \u548c Thread
\n\u3000\u3000\u3000\u3000\u8fd9\u4e24\u4e2a\u7c7b\u578b\u7684\u8bdd\u9898\uff0c\u8d85\u51fa\u4e86\u672c\u6587\u7684\u5185\u5bb9\uff0c\u5c31\u4e0d\u6253\u7b97\u7ec6\u8bf4\u4e86\u3002<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u00a0<\/p>\n

VI. \u7ed3\u675f\u8bed<\/strong><\/p>\n

\n\u3000\u3000\u5c31\u8fd9\u4e48\u7ed3\u675f\u4e86\u5417\uff1f\u5f53\u7136\u4e0d\u662f\uff0c\u63a5\u4e0b\u6765\uff0c\u9700\u8981\u7528Lua\u89e3\u91ca\u5668\uff0c\u6765\u5e2e\u52a9\u4f60\u7406\u89e3\u548c\u5b9e\u8df5\u4e86\u3002\u8fd9\u7bc7\u5c0f\u6587\u53ea\u662f\u5e2e\u52a9\u4f60\u5927\u4f53\u4e86\u89e3Lua\u7684\u8bed\u6cd5\u3002\u5982\u679c\u4f60\u6709\u7f16\u7a0b\u57fa\u7840\uff0c\u76f8\u4fe1\u4f1a\u5f88\u5feb\u5bf9Lua\u4e0a\u624b\u4e86\u3002<\/p>\n

\u3000\u3000\u5c31\u8c61C\u8bed\u8a00\u4e00\u6837\uff0cLua\u63d0\u4f9b\u4e86\u76f8\u5f53\u591a\u7684\u6807\u51c6\u51fd\u6570\u6765\u589e\u5f3a\u8bed\u8a00\u7684\u529f\u80fd\u3002\u4f7f\u7528\u8fd9\u4e9b\u6807\u51c6\u51fd\u6570\uff0c\u4f60\u53ef\u4ee5\u5f88\u65b9\u4fbf\u7684\u64cd\u4f5c\u5404\u79cd\u6570\u636e\u7c7b\u578b\uff0c\u5e76\u5904\u7406\u8f93\u5165\u8f93\u51fa\u3002\u6709\u5173\u8fd9\u65b9\u9762\u7684\u4fe1\u606f\uff0c\u4f60\u53ef\u4ee5\u53c2\u8003\u300aProgramming
\nin Lua \u300b\u4e00\u4e66\uff0c\u4f60\u53ef\u4ee5\u5728\u7f51\u7edc\u4e0a\u76f4\u63a5\u89c2\u770b\u7535\u5b50\u7248\uff0c\u7f51\u5740\u4e3a\uff1ahttp:\/\/www.lua.org\/pil\/index.html<\/font><\/a>
\n\u3000\u3000\u5f53\u7136\uff0cLua\u7684\u6700\u5f3a\u5927\u7684\u529f\u80fd\u662f\u80fd\u4e0e\u5bbf\u4e3b\u7a0b\u5e8f\u4eb2\u871c\u65e0\u95f4\u7684\u5408\u4f5c\uff0c\u56e0\u6b64\uff0c\u4e0b\u4e00\u7bc7\u6587\u7ae0\uff0c\u6211\u4f1a\u544a\u8bc9\u5927\u5bb6\uff0c\u5982\u4f55\u5728\u4f60\u7684\u7a0b\u5e8f\u4e2d\u4f7f\u7528Lua\u8bed\u8a00\u4f5c\u4e3a\u811a\u672c\uff0c\u4f7f\u4f60\u7684\u7a0b\u5e8f\u548cLua\u811a\u672c\u8fdb\u884c\u4ea4\u4e92\u3002<\/p>\n

\u4f7f\u7528\u6d41\u7a0b<\/strong><\/p>\n

1. \u51fd\u6570\u7684\u4f7f\u7528<\/strong><\/p>\n

\u00a0\u00a0\u00a0
\n\u4ee5\u4e0b\u7a0b\u5e8f\u6f14\u793a\u4e86\u5982\u4f55\u5728Lua\u4e2d\u4f7f\u7528\u51fd\u6570, \u53ca\u5c40\u90e8\u53d8\u91cf
\n\u4f8be02.lua
\n-- functions
\nfunction pythagorean(a, b)
\nlocal c2 = a^2 + b^2
\nreturn sqrt(c2)
\nend
\nprint(pythagorean(3,4))<\/p>\n

\u8fd0\u884c\u7ed3\u679c
\n5<\/p>\n

\u7a0b\u5e8f\u8bf4\u660e
\n\u5728Lua\u4e2d\u51fd\u6570\u7684\u5b9a\u4e49\u683c\u5f0f\u4e3a:
\nfunction \u51fd\u6570\u540d(\u53c2\u6570)
\n...
\nend
\n\u00a0\u00a0\u00a0 \u4e0ePascal\u8bed\u8a00\u4e0d\u540c,
\nend\u4e0d\u9700\u8981\u4e0ebegin\u914d\u5bf9, \u53ea\u9700\u8981\u5728\u51fd\u6570\u7ed3\u675f\u540e\u6253\u4e2aend\u5c31\u53ef\u4ee5\u4e86.\u672c\u4f8b\u51fd\u6570\u7684\u4f5c\u7528\u662f\u5df2\u77e5\u76f4\u89d2\u4e09\u89d2\u5f62\u76f4\u89d2\u8fb9, \u6c42\u659c\u8fb9\u957f\u5ea6.
\n\u53c2\u6570a,b\u5206\u522b\u8868\u793a\u76f4\u89d2\u8fb9\u957f,
\n\u00a0\u00a0\u00a0
\n\u5728\u51fd\u6570\u5185\u5b9a\u4e49\u4e86local\u5f62\u53d8\u91cf\u7528\u4e8e\u5b58\u50a8\u659c\u8fb9\u7684\u5e73\u65b9. \u4e0eC\u8bed\u8a00\u76f8\u540c, \u5b9a\u4e49\u5728\u51fd\u6570\u5185\u7684\u4ee3\u7801\u4e0d\u4f1a\u88ab\u76f4\u63a5\u6267\u884c,
\n\u53ea\u6709\u4e3b\u7a0b\u5e8f\u8c03\u7528\u65f6\u624d\u4f1a\u88ab\u6267\u884c.
\n\u00a0\u00a0\u00a0
\nlocal\u8868\u793a\u5b9a\u4e49\u4e00\u4e2a\u5c40\u90e8\u53d8\u91cf, \u5982\u679c\u4e0d\u52a0local\u521a\u8868\u793ac2\u4e3a\u4e00\u4e2a\u5168\u5c40\u53d8\u91cf,
\nlocal\u7684\u4f5c\u7528\u57df\u662f\u5728\u6700\u91cc\u5c42\u7684end\u548c\u5176\u914d\u5bf9\u7684\u5173\u952e\u5b57\u4e4b\u95f4, \u5982if ... end, while ...
\nend\u7b49\u3002\u5168\u5c40\u53d8\u91cf\u7684\u4f5c\u7528\u57df\u662f\u6574\u4e2a\u7a0b\u5e8f\u3002<\/p>\n

2. \u5faa\u73af\u8bed\u53e5<\/strong><\/p>\n

\u4f8be03.lua
\n-- Loops
\nfor i=1,5 do
\nprint(\"i is now \" .. i)
\nend<\/p>\n

\u8fd0\u884c\u7ed3\u679c
\ni is now 1
\ni is now 2
\ni is now 3
\ni is now 4
\ni is now 5<\/p>\n

\u7a0b\u5e8f\u8bf4\u660e
\n\u00a0\u00a0\u00a0
\n\u8fd9\u91cc\u5076\u4eec\u7528\u5230\u4e86for\u8bed\u53e5
\nfor \u53d8\u91cf = \u53c2\u65701, \u53c2\u65702, \u53c2\u65703 do
\n\u5faa\u73af\u4f53
\nend
\n\u00a0\u00a0\u00a0 \u53d8\u91cf\u5c06\u4ee5\u53c2\u65703\u4e3a\u6b65\u957f,
\n\u7531\u53c2\u65701\u53d8\u5316\u5230\u53c2\u65702
\n\u4f8b\u5982:
\nfor i=1,f(x) do print(i) end
\nfor i=10,1,-1 do print(i) end<\/p>\n

\u00a0\u00a0\u00a0
\n\u8fd9\u91ccprint(\"i is now \" ..
\ni)\u4e2d\uff0c\u5076\u4eec\u7528\u5230\u4e86..\uff0c\u8fd9\u662f\u7528\u6765\u8fde\u63a5\u4e24\u4e2a\u5b57\u7b26\u4e32\u7684\uff0c\u5076\u5728(1)\u7684\u8bd5\u8bd5\u770b\u4e2d\u63d0\u5230\u7684\uff0c\u4e0d\u77e5\u9053\u4f60\u4eec\u7b54\u5bf9\u4e86\u6ca1\u6709\u3002\u867d\u7136\u8fd9\u91cci\u662f\u4e00\u4e2a\u6574\u578b\u91cf\uff0cLua\u5728\u5904\u7406\u7684\u65f6\u5019\u4f1a\u81ea\u52a8\u8f6c\u6210\u5b57\u7b26\u4e32\u578b\uff0c\u4e0d\u9700\u5076\u4eec\u8d39\u5fc3\u3002<\/p>\n

3. \u6761\u4ef6\u5206\u652f\u8bed\u53e5<\/strong><\/p>\n

\u4f8be04.lua
\n-- Loops and conditionals
\nfor i=1,5 do
\nprint(\u201ci is now \u201c .. i)
\nif i < 2 then
\nprint(\u201csmall\u201d)
\nelseif i < 4 then
\nprint(\u201cmedium\u201d)
\nelse
\nprint(\u201cbig\u201d)
\nend
\nend<\/p>\n

\u8fd0\u884c\u7ed3\u679c
\ni is now 1
\nsmall
\ni is now 2
\nmedium
\ni is now 3
\nmedium
\ni is now 4
\nbig
\ni is now 5
\nbig<\/p>\n

\u7a0b\u5e8f\u8bf4\u660e
\n\u00a0\u00a0\u00a0 if
\nelse\u7528\u6cd5\u6bd4\u8f83\u7b80\u5355, \u7c7b\u4f3c\u4e8eC\u8bed\u8a00, \u4e0d\u8fc7\u6b64\u5904\u9700\u8981\u6ce8\u610f\u7684\u662f\u6574\u4e2aif\u53ea\u9700\u8981\u4e00\u4e2aend,\u54ea\u6015\u7528\u4e86\u591a\u4e2aelseif,
\n\u4e5f\u662f\u4e00\u4e2aend.
\n\u4f8b\u5982
\nif op == \"+\" then
\nr = a + b
\nelseif op == \"-\" then
\nr = a - b
\nelseif op == \"*\" then
\nr = a*b
\nelseif op == \"\/\" then
\nr = a\/b
\nelse
\nerror(\"invalid operation\")
\nend<\/p>\n

4.\u8bd5\u8bd5\u770b<\/strong><\/p>\n

\u00a0\u00a0\u00a0
\nLua\u4e2d\u9664\u4e86for\u5faa\u73af\u4ee5\u5916, \u8fd8\u652f\u6301\u591a\u79cd\u5faa\u73af, \u8bf7\u7528while...do\u548crepeat...until\u6539\u5199\u672c\u6587\u4e2d\u7684for\u7a0b\u5e8f\u3002<\/p>\n

\u6570\u7ec4\u7684\u4f7f\u7528<\/strong><\/p>\n

1.\u7b80\u4ecb<\/strong><\/p>\n

\u00a0\u00a0\u00a0
\nLua\u8bed\u8a00\u53ea\u6709\u4e00\u79cd\u57fa\u672c\u6570\u636e\u7ed3\u6784, \u90a3\u5c31\u662ftable, \u6240\u6709\u5176\u4ed6\u6570\u636e\u7ed3\u6784\u5982\u6570\u7ec4\u5566,\u7c7b\u5566, \u90fd\u53ef\u4ee5\u7531table\u5b9e\u73b0.<\/p>\n

2.table\u7684\u4e0b\u6807<\/strong><\/p>\n

\u4f8be05.lua
\n-- Arrays
\nmyData = {}
\nmyData[0] = \u201cfoo\u201d
\nmyData[1] = 42<\/p>\n

-- Hash tables
\nmyData[\u201cbar\u201d] = \u201cbaz\u201d<\/p>\n

-- Iterate through the
\n-- structure
\nfor key, value in myData do
\nprint(key .. \u201c=\u201c .. value)
\nend<\/p>\n

\u8f93\u51fa\u7ed3\u679c
\n0=foo
\n1=42
\nbar=baz<\/p>\n

\u7a0b\u5e8f\u8bf4\u660e
\n\u00a0\u00a0\u00a0 \u9996\u5148\u5b9a\u4e49\u4e86\u4e00\u4e2atable
\nmyData={}, \u7136\u540e\u7528\u6570\u5b57\u4f5c\u4e3a\u4e0b\u6807\u8d4b\u4e86\u4e24\u4e2a\u503c\u7ed9\u5b83. \u8fd9\u79cd\u5b9a\u4e49\u65b9\u6cd5\u7c7b\u4f3c\u4e8eC\u4e2d\u7684\u6570\u7ec4, \u4f46\u4e0e\u6570\u7ec4\u4e0d\u540c\u7684\u662f,
\n\u6bcf\u4e2a\u6570\u7ec4\u5143\u7d20\u4e0d\u9700\u8981\u4e3a\u76f8\u540c\u7c7b\u578b,\u5c31\u50cf\u672c\u4f8b\u4e2d\u4e00\u4e2a\u4e3a\u6574\u578b, \u4e00\u4e2a\u4e3a\u5b57\u7b26\u4e32.<\/p>\n

\u00a0\u00a0\u00a0 \u7a0b\u5e8f\u7b2c\u4e8c\u90e8\u5206,
\n\u4ee5\u5b57\u7b26\u4e32\u505a\u4e3a\u4e0b\u6807, \u53c8\u5411table\u5185\u589e\u52a0\u4e86\u4e00\u4e2a\u5143\u7d20. \u8fd9\u79cdtable\u975e\u5e38\u50cfSTL\u91cc\u9762\u7684map.
\ntable\u4e0b\u6807\u53ef\u4ee5\u4e3aLua\u6240\u652f\u6301\u7684\u4efb\u610f\u57fa\u672c\u7c7b\u578b, \u9664\u4e86nil\u503c\u4ee5\u5916.<\/p>\n

\u00a0\u00a0\u00a0
\nLua\u5bf9Table\u5360\u7528\u5185\u5b58\u7684\u5904\u7406\u662f\u81ea\u52a8\u7684, \u5982\u4e0b\u9762\u8fd9\u6bb5\u4ee3\u7801
\na = {}
\na[\"x\"] = 10
\nb = a -- `b' refers to the same table as `a'
\nprint(b[\"x\"]) --> 10
\nb[\"x\"] = 20
\nprint(a[\"x\"]) --> 20
\na = nil -- now only `b' still refers to the table
\nb = nil -- now there are no references left to the table
\n\u00a0\u00a0\u00a0
\nb\u548ca\u90fd\u6307\u5411\u76f8\u540c\u7684table, \u53ea\u5360\u7528\u4e00\u5757\u5185\u5b58, \u5f53\u6267\u884c\u5230a = nil\u65f6, b\u4ecd\u7136\u6307\u5411table,
\n\u00a0\u00a0\u00a0 \u800c\u5f53\u6267\u884c\u5230b=nil\u65f6,
\n\u56e0\u4e3a\u6ca1\u6709\u6307\u5411table\u7684\u53d8\u91cf\u4e86, \u6240\u4ee5Lua\u4f1a\u81ea\u52a8\u91ca\u653etable\u6240\u5360\u5185\u5b58<\/p>\n

3.Table\u7684\u5d4c\u5957<\/strong><\/p>\n

\u00a0\u00a0\u00a0
\nTable\u7684\u4f7f\u7528\u8fd8\u53ef\u4ee5\u5d4c\u5957\uff0c\u5982\u4e0b\u4f8b
\n\u4f8be06.lua
\n-- Table \u2018constructor\u2019
\nmyPolygon = {
\ncolor=\u201cblue\u201d,
\nthickness=2,
\nnpoints=4;
\n{x=0, y=0},
\n{x=-10, y=0},
\n{x=-5, y=4},
\n{x=0, y=4}
\n}<\/p>\n

-- Print the color
\nprint(myPolygon[\u201ccolor\u201d])<\/p>\n

-- Print it again using dot
\n-- notation
\nprint(myPolygon.color)<\/p>\n

-- The points are accessible
\n-- in myPolygon[1] to myPolygon[4]<\/p>\n

-- Print the second point\u2019s x
\n-- coordinate
\nprint(myPolygon[2].x)<\/p>\n

\u7a0b\u5e8f\u8bf4\u660e<\/strong><\/p>\n

\u00a0 \u00a0 \u9996\u5148\u5efa\u7acb\u4e00\u4e2atable,
\n\u4e0e\u4e0a\u4e00\u4f8b\u4e0d\u540c\u7684\u662f\uff0c\u5728table\u7684constructor\u91cc\u9762\u6709{x=0,y=0}, \u8fd9\u662f\u4ec0\u4e48\u610f\u601d\u5462\uff1f \u8fd9\u5176\u5b9e\u5c31\u662f\u4e00\u4e2a\u5c0ftable,
\n\u5b9a\u4e49\u5728\u4e86\u5927table\u4e4b\u5185,
\n\u5c0ftable\u7684table\u540d\u7701\u7565\u4e86.\u6700\u540e\u4e00\u884cmyPolygon[2].x\uff0c\u5c31\u662f\u5927table\u91cc\u9762\u5c0ftable\u7684\u8bbf\u95ee\u65b9\u5f0f.<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u60f3\u5411\u5927\u5bb6\u4ecb\u7ecd\u5982\u4f55\u8fdb\u884cLua\u7a0b\u5e8f\u8bbe\u8ba1\u3002\u6211\u5047\u8bbe\u5927\u5bb6\u90fd\u5b66\u8fc7\u81f3\u5c11\u4e00\u95e8\u7f16\u7a0b\u8bed\u8a00\uff0c\u6bd4\u5982Basic\u6216C\uff0c\u7279\u522b … \u7ee7\u7eed\u9605\u8bfb\u201cLua\u6e38\u620f\u811a\u672c\u8bed\u8a00\u5165\u95e8\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":[13],"tags":[24,76,90,127,128,161],"class_list":["post-179","post","type-post","status-publish","format-standard","hentry","category-13","tag-c","tag-for","tag-now","tag-127","tag-128","tag-161"],"_links":{"self":[{"href":"https:\/\/www.keyboardmeow.com\/index.php?rest_route=\/wp\/v2\/posts\/179","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=179"}],"version-history":[{"count":0,"href":"https:\/\/www.keyboardmeow.com\/index.php?rest_route=\/wp\/v2\/posts\/179\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.keyboardmeow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=179"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.keyboardmeow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=179"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.keyboardmeow.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=179"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}