{"id":426314,"date":"2021-04-04T19:41:43","date_gmt":"2021-04-04T11:41:43","guid":{"rendered":"http:\/\/4563.org\/?p=426314"},"modified":"2021-04-04T19:41:43","modified_gmt":"2021-04-04T11:41:43","slug":"python-lambda%ef%bc%9a%e7%ba%af%e6%ad%a3%e7%9a%84-%ce%bb-%e6%bc%94%e7%ae%97%e5%91%b3%e5%84%bf","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=426314","title":{"rendered":"Python lambda\uff1a\u7eaf\u6b63\u7684 \u03bb \u6f14\u7b97\u5473\u513f"},"content":{"rendered":"
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Python lambda\uff1a\u7eaf\u6b63\u7684 \u03bb \u6f14\u7b97\u5473\u513f <\/h1>\n

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\u8cc7\u6df1\u5927\u4f6c : abersheeran <\/span> <\/i> 4<\/span> <\/div>\n
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\u6700\u8fd1\u770b\u4e86\u4e00\u4e0b \u03bb \u6f14\u7b97\u3002\u6bd4\u5982\u8bf4\uff0c\u4f17\u6240\u5468\u77e5\u7684 \u03bb \u6f14\u7b97\u91cc\u6ca1\u6709 a = b\uff0c\u8d4b\u503c\u90fd\u9760\u51fd\u6570\u53c2\u6570\u6765\u641e\u5b9a\u3002\u800c Python \u4e5f\u4e0d\u5141\u8bb8\u4f60\u5728 lambda \u91cc\u5199\u8d4b\u503c\u64cd\u4f5c\uff0c\u5982\u679c\u5b66\u4e60\u8fc7 \u03bb \u6f14\u7b97\uff0c\u5199 Python \u7684 lambda \u5176\u5b9e\u611f\u89c9\u8fd8\u884c\uff0c\u81f3\u5c11\u4e0d\u4f1a\u8bf4\u5b83\u96be\u7528\u3002<\/p>\n

\u770b\u7684\u65f6\u5019\u987a\u4fbf\u6574\u4e86\u4e2a\u6d3b\uff0cY \u7ec4\u5408\u5b50\u3002https:\/\/gist.github.com\/abersheeran\/80709d4ffd7e83c1206dbcc8df11d4d5<\/p>\n

Y = lambda g: (lambda f: g(lambda arg: f(f)(arg))) (lambda f: g(lambda arg: f(f)(arg)))  if __name__ == \"__main__\":     fib = Y(lambda f: lambda n: (1 if n < 3 else f(n-1) + f(n-2)))     print(fib(10)) <\/code><\/pre>\n<\/p><\/div>\n
 \u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (41<\/span>)        <\/div>\n
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                                                                 \u751f\u6d3b\u5df2\u7ecf\u5f88\u8270\u96be\u4e86\uff0c\u4e3a\u4ec0\u4e48\u8981\u7ed9\u81ea\u5df1\u6dfb\u5835\uff08\u72d7\u5934\uff09                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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                                                                 \u53ea\u80fd\u5199\u4e00\u884c\uff0c\u96be\u4e0d\u96be\u7528\uff1f                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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                                                                 \u6ca1\u6709 Monad \u8bed\u6cd5\u7cd6\u5c31\u5f88\u96be\u53d7 :doge:                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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                                                                 \u5c31\u8fd9\u53ef\u8bfb\u6027\uff0c\u544a\u522b\u5de5\u4f5c\u4e86                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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                                                                 \u4e0d\u5e94\u8be5\u662f haskell \u5417                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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                                                                 python \u7684 lambda \u5c31\u7b97\u4e86\uff0c\u5c31\u4e00\u73a9\u5177                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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                                                                 www.paulgraham.com\/icad.html                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : aguesuka <\/span>  <\/div>\n
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                                                                 @exceldream \u7eaf\u6b63\u7684 lambda \u6f14\u7b97\u5c31\u662f\u03bb\uff0c\u800c\u6ca1\u6709\u03bb2,\u03bb\u03c9,\u03bbP \u3002\u5f88\u5408\u7406                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : iintothewind <\/span>  <\/div>\n
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                                                                 fib(99) \u4f1a\u4e0d\u4f1a\u5f88\u6162\uff1f
    \u8fd8\u662f\u6765\u4e2a\u4f2a\u9012\u5f52\u4f18\u5316\u7684\u7248\u672c\u5427                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : CismonX <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u7eaf\u6b63\u7684 lambda \u6f14\u7b97\uff0c\u5f53\u7136\u8981\u770b Unlambda \u8bed\u8a00\u3002\u8fd9\u4e2a\u8bed\u8a00\u53ea\u6709\u7ec4\u5408\u5b50\uff0c\u5176\u4ed6\u4ec0\u4e48\u90fd\u6ca1\u6709 [doge]<\/p>\n
    \u5b83\u7684\u8bbe\u8ba1\u7406\u5ff5\u57fa\u4e8e SKI combinator calculus\uff0c\u53ea\u7528\u5176\u4e2d\u7684 s \u548c k \u4e24\u4e2a\u7ec4\u5408\u5b50\uff0c\u5c31\u80fd\u505a\u5230\u56fe\u7075\u5b8c\u5907\u3002\u5f53\u7136 Unlambda \u8fd8\u6709 call\/cc\uff0c\u6709 promise\uff0c\u6709 I\/O \u51fd\u6570\uff0c\u6240\u4ee5\u5199\u8d77\u6765\u4e5f\u633a\u6709\u8da3\u7684<\/p>\n
    \u6211\u4e4b\u524d\u8fd8\u5199\u8fc7 Unlambda \u7684\u51e0\u4e2a\u5b9e\u73b0\uff0c\uff08\u89c1\u6211\u53d1\u8fc7\u7684\u5e16\u5b50\uff09\uff0c\u5b9e\u73b0\u8d77\u6765\u4e5f\u5f88\u6709\u8da3                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : abersheeran <\/span>  <\/div>\n
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                                                                 @atuocn \u4f46\u51e1\u4f60\u5b66\u8fc7\u4e00\u70b9\u8bed\u8a00\u76f8\u5173\u7684\u4e1c\u897f\uff0c\u5c31\u77e5\u9053\uff0c\u8fd9\u4e0d\u662f\u53ea\u5141\u8bb8\u4e00\u884c\uff0c\u662f\u53ea\u5141\u8bb8\u4e00\u4e2a\u8868\u8fbe\u5f0f\uff0c\u81f3\u4e8e\u4f60\u7528\u51e0\u884c\uff0c\u90a3\u662f\u4f60\u7684\u81ea\u7531\u3002\u800c\u4f46\u51e1\u770b\u8fc7 \u03bb \u6f14\u7b97\uff0c\u4f60\u5e94\u8be5\u77e5\u9053\u90a3\u73a9\u610f\u91cc\u5c31\u4e0d\u5b58\u5728\u4ec0\u4e48\u8fc7\u7a0b\uff08\u591a\u8868\u8fbe\u5f0f\uff09\uff0c\u4e00\u4e2a\u8868\u8fbe\u5f0f\u5c31\u591f\u7528\u4e86\u3002<\/p>\n
    @hsfzxjy \u54c8\u54c8\u54c8\uff0c\u786e\u5b9e\u662f\u6709 Python \u7684\u5e93\u652f\u6301 Monad\uff0c\u4e0d\u8fc7\u6211\u89c9\u5f97\u5728 Python \u91cc\u592a\u591a\u4f59\u4e86\u3002                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
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                                                                 @avastms \u51fd\u6570\u5f0f\u7f16\u7a0b\u5b97\u6559\u6559\u5f92\u9707\u6012\uff01\u4ec0\u4e48\uff0c\u4f60\u5c45\u7136\u7406\u89e3\u4e0d\u4e86 Y \u7ec4\u5408\u5b50\uff0c\u8fd9\u662f\u4f60\u7684\u95ee\u9898\uff0c\u4e0d\u662f\u6211\u4ee3\u7801\u7684\u95ee\u9898\uff01                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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                                                                 @CismonX \u55ef\u55ef\uff0c\u53ea\u662f\u60f3\u7ed9 Python lambda \u6b63\u540d\u4e00\u4e0b\uff0c\u5012\u4e5f\u4e0d\u662f\u60f3\u5728 Python \u91cc\u590d\u5174 \u03bb \u6f14\u7b97\u3002<\/p>\n
    \u51e0\u4e2a\u5927\u4f6c\u8bf4\u4e0d\u597d\u7528\uff0c\u4e00\u7fa4\u83dc\u9e1f\u8ddf\u7740\u8bf4\u4e0d\u597d\u7528\u3002\u81ea\u5df1\u4e5f\u4e0d\u60f3\u60f3\u4e0d\u597d\u7528\u5728\u54ea\u513f\u3002\u4e00\u7fa4\u4eba\uff0c\u4eba\u4e91\u4ea6\u4e91\u3002\u4e0a\u4e00\u6b21\u9047\u5230\u8fd9\u4e8b\uff0c\u8fd8\u662f C \u91cc\u7684 goto \u3002                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : aaaron7 <\/span>  <\/div>\n
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                                                                 \u6b63\u4e0d\u6b63\u5b97\u7684\uff0c\u91cd\u8981\u5417\uff0c\u53ea\u652f\u6301\u8868\u8fbe\u5f0f\u672c\u6765\u5c31\u662f\u5f88\u4e0d\u597d\u7528\u7684\u4f53\u73b0\u3002<\/p>\n
    \u8fd9\u548c\u5927\u4e0d\u5927\u4f6c\uff0c\u83dc\u4e0d\u83dc\u9e21\u6ca1\u5173\u7cfb\uff0c\u662f\u4e2a\u4eba\u90fd\u80fd\u7528\u51fa\u6765 python \u7684 lambda \u96be\u7528\u7684\u4e00\u7b14\u3002\u5bf9\u6bd4 swift \u7684 closure\uff0cc++\u7684 lambda \u3002                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : abersheeran <\/span>  <\/div>\n
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                                                                 @aaaron7 \u4e00\u4e2a\u8bed\u8a00\u6709\u4e00\u4e2a\u8bed\u8a00\u7684\u98ce\u683c\u3002Python \u672c\u8eab\u5c31\u4e0d\u9f13\u52b1\u5927\u91cf\u4f7f\u7528 lambda\uff0c\u800c\u5e94\u8be5\u76f4\u63a5 def function \u3002\u4f60\u62ff\u7740\u5176\u4ed6\u8bed\u8a00\u7684\u4f7f\u7528\u7ecf\u9a8c\u6765\u8bf4 Py \u533f\u540d\u51fd\u6570\u4e0d\u597d\u7528\uff0c\u90a3\u786e\u5b9e\u4e0d\u597d\u7528\u3002\u4f60\u7528 Python \u7684\u601d\u7ef4\u53bb\u5199 Python\uff0c\u8fd9\u73a9\u610f\u624d\u597d\u7528\u3002\u660e\u767d\u5417\uff1f<\/p>\n
    \u6211\u5199 Python \u5c31\u662f Python\uff0c\u5199 JavaScript \u5c31\u662f JavaScript \u3002\u6211\u4ece\u6765\u4e0d\u5199 JavaScript \u98ce\u683c\u7684 Python\uff0c\u4e5f\u4e0d\u5199 Python \u98ce\u683c\u7684 JavaScript \u3002\u6240\u4ee5\u6211\u4ece\u4e0d\u89c9\u5f97 Python lambda \u96be\u7528\uff0c\u4e5f\u4ece\u4e0d\u89c9\u5f97 JavaScript \u7684\u7bad\u5934\u533f\u540d\u51fd\u6570\u7528\u4e0d\u4e0a\u3002                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
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                                                                 \u8fd9\u4e0d pythonic                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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                                                                 \u7406\u89e3 lambda calculus \u672c\u8eab\u6709\u96be\u5ea6\u3002
    \u7528 python \u5199 lambda calculus \u7684\u96be\u5ea6\u76f8\u6bd4\u4e4b\u4e0b\u4e0d\u7b97\u4ec0\u4e48\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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                                                                 \u51fd\u6570\u5f0f\u6559\u5f92\u4e0d\u5e94\u8be5\u6765\u8fd9                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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                                                                 @abersheeran \u90a3\u4e3a\u5565 java \u3001c++\u3001swift \u3001js \u90fd\u80fd\u89e3\u51b3\u597d\u7684\u9700\u6c42\uff0c\u5230 python \u8fd9\u5c31\u4e0d\u884c\u4e86\u5462\uff1f<\/p>\n
    \u8ba4\u53ef\u4e00\u4e2a\u8bed\u8a00\u6709\u4e00\u4e2a\u8bed\u8a00\u7684\u98ce\u683c\uff0c\u4f46 python \u7684\u8fd9\u4e2a\u201c\u98ce\u683c\u201d\u8fd8\u4e0d\u8ba9\u4eba\u89c9\u5f97\u96be\u7528\u5417\uff1f<\/p>\n
    \u54b1\u80fd\u7528\u76f4\u89c9\u6765\u770b\u95ee\u9898\u5417\uff1f                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
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                                                                 @aaaron7 \u5594\u3002C \u8fde lambda \u90fd\u4e0d\u80fd\u5199\uff0c\u90a3\u53ef\u771f\u662f\u4e00\u4e2a\u201c\u5783\u573e\u201d\uff0cPython \u6df1\u53d7 C \u601d\u60f3\u837c\u6bd2\uff0clambda \u4e5f\u4e0d\u652f\u6301\u8fc7\u7a0b\uff0c\u4e5f\u662f\u4e2a\u5783\u573e\u3002\u4f60\u5df2\u7ecf\u5f97\u5230\u6ee1\u610f\u7684\u56de\u7b54\u4e86\uff0c\u53ef\u4ee5\u7ee7\u7eed\u7528\u4f60\u7684\u76f4\u89c9\u5199\u4ee3\u7801\u53bb\u4e86\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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                                                                 @guyeu \u786e\u5b9e\uff0c\u6b63\u7ecf\u5199\u4ee3\u7801\uff0c\u6ca1\u4eba\u8fd9\u4e48\u73a9\u513f\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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                                                                 @abersheeran 
    \u4f60\u770b\u6e05\u695a\u6211\u8bf4\u7684\u8bdd\u628a\uff0c\u6211\u8bf4\u7684\u662f python \u7684 lambda \u5f88\u96be\u7528<\/p>\n
    \u8fd9\u4e0d\u59a8\u788d\u6211\u89c9\u5f97 python \u662f\u4e00\u95e8\u975e\u5e38\u597d\u7528\u7684\u8bed\u8a00\uff0c\u5e76\u4e14\u4e5f\u662f\u6211\u5728\u5de5\u4f5c\u4e2d\u7528\u7684\u6700\u591a\u7684\u8bed\u8a00\u4e4b\u4e00\uff0c\u7528\u7684\u8d8a\u591a\u8d8a\u89c9\u5f97\u5b83\u7684 lambda \u5f88\u5783\u573e\u3002                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : abersheeran <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @nthhdy \u786e\u5b9e \u03bb \u6f14\u7b97\u7684\u884d\u751f\u54c1\u5f88\u590d\u6742\uff0c\u4f46\u5b83\u672c\u8eab\u8fd8\u662f\u5f88\u7b80\u5355\u7684\u3002\u6211\u6682\u65f6\u628a\u5b83\u7684\u884d\u751f\u54c1\u5f53\u4e00\u79cd\u667a\u529b\u6e38\u620f\u5728\u73a9\uff0c\u4e0d\u4f1a\u771f\u7684\u53bb\u5e94\u7528\u3002\u6240\u4ee5\u76ee\u524d\u6765\u770b\uff0c\u633a\u6709\u8da3\u7684\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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                                                                 @aaaron7 \u6211\u90fd\u8bf4\u4e86\uff0cPython \u7684\u8bbe\u8ba1\u5c31\u6ca1\u6253\u7b97\u4f60\u591a\u7528 lambda \u3002\u64e6\u6c57\u3002\u4f60\u975e\u8981\u628a\u5176\u5b83\u8bed\u8a00\u7684 lambda \u5bf9\u5e94\u8fc7\u6765\uff0c\u90a3\u786e\u5b9e\u96be\u7528\u7684\u5f88\u3002\u4f60\u628a\u5b83\u5f53\u4f5c\u4e00\u4e2a\u589e\u52a0\u4e86\u5355\u6761\u8bed\u53e5\u51fd\u6570\u53ef\u4ee5\u4e0d\u5199\u540d\u79f0\u7684\u8bed\u6cd5\u7cd6\u7684 C \u6765\u5199\uff0c\u8fd9\u4e2a\u4e1c\u897f\u5c31\u597d\u7528\u591a\u4e86\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : bleepbloop <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @abersheeran www.python.org\/dev\/peps\/pep-3107\/#return-values                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : abersheeran <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @bleepbloop \u8fd9\u8fd8\u7528\u7ffb PEP \u770b\u201cLambdas are neutered anyway.\u201d\u5417\uff1f\u6211\u4ee5\u4e3a python \u4e0d\u9f13\u52b1\u4f7f\u7528 lambda \u662f\u4e00\u4e2a\u4eba\u5c3d\u7686\u77e5\u7684\u4e8b\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : xuegy <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u60f3\u8d77\u6765\u7b2c\u4e00\u6b21\u5b66\u628a MATLAB \u4ee3\u7801\u7ffb\u8bd1\u5230 numpy\uff0c\u7136\u540e\u53d8\u91cf\u540d lambda \u5c31\u51b2\u7a81\u4e86\u3002\u6211\u53ea\u80fd\u8bf4\u8fd9\u4e2a\u540d\u5b57\u8d77\u5f97\u771f\u4e0d\u597d…                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : bleepbloop <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @abersheeran \u5176\u5b9e\u6211\u662f\u60f3\u8bf4->\u88ab\u7528\u6389\u4e86\u3002\u3002\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @bleepbloop \u54c8\u54c8\u54c8\u6211\u8bef\u4f1a\u4f60\u4e86\u3002\u53ea\u662f\u4e2a\u611f\u6982\u7f62\u4e86\uff0c\u5176\u5b9e\u6211\u77e5\u9053\u80af\u5b9a\u4e0d\u4f1a\u51fa shortcut \u7684\u3002-> \u7528\u6389\u4e86\u5012\u5728\u5176\u6b21\uff0c\u8fd9\u73a9\u610f\u6839\u636e\u4e0a\u4e0b\u6587\u4e0d\u540c\uff0c\u53ef\u4ee5\u7f16\u8bd1\u6210\u4e0d\u540c\u542b\u4e49\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : abersheeran <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @bleepbloop \u8fd9\u4e2a PEP \u91cc\u7684 \u201cLambdas are neutered anyway\u201d \u4e5f\u5f88\u660e\u786e\u6001\u5ea6\u4e86\u3002lambda \u8fd9\u73a9\u610f\u4ee5\u540e\u5c31\u8fd9\u6837\u4e86\uff0c\u5565\u4e1c\u897f\u90fd\u4e0d\u52a0\u4e86\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : ychost <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 py \u7684 lambda \u53ef\u8bfb\u6027\u592a\u4f4e\u4e86                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : bleepbloop <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @abersheeran \u4f60\u53ef\u4ee5\u81ea\u5df1\u6539 cpython                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : BeautifulSoap <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u9053\u7406\u6211\u61c2\uff0c\u4f46\u95ee\u9898\u662f\u8fd9\u548c\u4e00\u5768 lambda \u96be\u8bfb\u4e4b\u95f4\u6ca1\u5173\u7cfb\u554a                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : abersheeran <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @bleepbloop \u7136\u540e Guido\uff1aClosed. \u54c8\u54c8\u54c8\u3002\u4e0a\u6b21\u6211\u63d0\u7684\u8fd9\u4e2a\u95ee\u9898 https:\/\/v2ex.com\/t\/765531 Coconut \u76f4\u63a5 Python \u8d85\u96c6\u8bed\u6cd5\uff0c\u9999\u7684\u5f88\uff0c\u6539 CPython \u4e0d\u5982\u76f4\u63a5\u7528\u5b83\uff0c\u7136\u540e\u7f16\u8bd1\u5230 Python \u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : SjwNo1 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 python3.8 \u597d\u50cf\u53ef\u4ee5 lambda : (x := 1)                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : no1xsyzy <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @SjwNo1 \u4e0d\u4f1a\u5f71\u54cd\u7236\u4f5c\u7528\u57df                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : atuocn <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @abersheeran \u592a\u6fc0\u52a8\u4e86\u5427\uff0c\u8fd9\u5c31\u5192\u72af\u4f60\u4e86\u3002\u770b\u770b\u6211\u5199\u7684\u5e16\u5b50\uff0c\u7528 lamba \u505a\u7684\u81ea\u7136\u6570\u6f14\u7b97\u5b9e\u9a8c\u3002\u60f3\u5f04\u51fd\u6570\u5f0f, schema \u6bd4\u8fd9\u597d\u591a\u4e86\u4f10\uff0cpython \u8fde\u4e2a\u5c3e\u9012\u5f52\u4f18\u5316\u90fd\u6ca1\uff0c\u597d\u610f\u601d\u8bf4\u51fd\u6570\u5f0f\u3002<\/p>\n
    \u51fd\u6570\u662f first class, python \u505a\u5230\u4e86\u5417\uff0c\u81f3\u5c11\u51fd\u6570\u5b9a\u4e49\u6ca1\u6709\uff0c\u4f60\u5fc5\u987b\u5f97\u5148\u5b9a\u4e49\u51fd\u6570\u540d\u5b57\uff0c\u624d\u80fd\u88ab\u4f20\u53c2\uff0c\u88ab\u4f7f\u7528\u3002\u5f04\u4e2a\u534a\u540a\u5b50 lamba \u6765\u51d1\u6d3b\uff0c\u5c31\u4e0d\u7528\u62ff\u6765\u5439\u4e86\u3002\u4e00\u4e2a\u8868\u8fbe\u5f0f\u5199\u591a\u884c\uff0c\u88ab\u8feb\u7eed\u884c\uff0c\u8fd8\u5f97\u517c\u987e\u7f29\u8fdb\uff0c\u8981\u4e0d\u7136\u6ca1\u6cd5\u8bfb\uff0c\u5199\u8d77\u6765\u597d\u73a9\u5417\uff1f\u6211\u770b python \u6ca1\u641e\u533f\u540d\u51fd\u6570\uff0c\u5c31\u662f\u7f29\u8fdb\u8bed\u6cd5\u5bb3\u7684\u3002js \u5199\u8d77\u6765\u8212\u670d\u591a\u4e86\u3002<\/p>\n
    \u8fd8\u6709\u51fd\u6570\u5f0f\u5c31\u4e00\u5b9a\u8981\u6392\u65a5\u8fc7\u7a0b\uff1f\u53ea\u8981\u4f60\u7684\u8fc7\u7a0b\uff0c\u4e2d\u95f4\u4ea7\u7269\u5168\u5c01\u95ed\u5728\u51fd\u6570\u5c40\u90e8\u4f5c\u7528\u57df\uff0c\u5bf9\u5916\u5c31\u662f\u4e2a\u62bd\u8c61\u51fd\u6570\uff0c\u6ca1\u6709\u526f\u4f5c\u7528\u3002\u51fd\u6570\u662f\u8fc7\u7a0b\u7684\u62bd\u8c61\uff0c\u4f60\u7ba1\u4eba\u5bb6\u600e\u4e48\u5b9e\u73b0\u7684\u3002\u4e3a\u4e86\u4f60\u7684\u88c5\u903c\uff0c\u5199\u6210\u4e00\u4e2a\u8868\u8fbe\u5f0f\uff0c\u8981\u641e\u591a\u5c11\u5f2f\u5f2f\u7ed5\u7ed5\u3002\u5148\u641e\u51e0\u4e2a let\uff0cloop \u5b8f\u51fa\u6765\u518d\u8bf4\u3002\u53ef\u60dc\uff0cpython \u6ca1\u6709\u5b8f\uff0c\u606d\u559c\u4f60\u4e00\u884c\u4e00\u884c\u5199\u3002\u6700\u540e\u606d\u559c\u4f60\uff0c\u5806\u6808\u6ea2\u51fa\u3002<\/p>\n
    \u4e0d\u662f\u4e00\u5b9a\u8981\u5938\u6216\u8005\u8d2c\u4f4e\u4ec0\u4e48\uff0cpython lambda \u5c31\u662f\u4e2a\u8865\u5145\uff0c\u89e3\u51b3\u4e86\u4e00\u4e9b\u95ee\u9898\u3002\u4f46\u4e5f\u6ca1\u5fc5\u8981\u975e\u62ff\u77ed\u677f\u6765\u786c\u5957\u5427\u3002                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : abersheeran <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @atuocn \u4e0d\u662f\u2026\u2026\u6211\u4e0a\u9762\u662f\u5f00\u73a9\u7b11\u7684\u3002\u6211\u4e0d\u662f\u51fd\u6570\u5f0f\u6559\u5f92\uff0c\u53ea\u662f\u6a21\u4eff\u4e00\u4e9b\u67d0\u4e9b\u4eba\u7684\u53e3\u543b\u3002<\/p>\n
    \u4f60\u8bf4\u7684\u8fd9\u4e9b\u7f3a\u70b9\u90fd\u662f\u5ba2\u89c2\u5b58\u5728\u7684\uff0c\u6240\u4ee5 Python \u4ee3\u7801\u4e00\u822c\u4e5f\u4e0d\u9f13\u52b1\u5927\u91cf\u4f7f\u7528 lambda \u3002\u8fd9\u4e2a Y \u7ec4\u5408\u5b50\u7eaf\u7cb9\u662f\u6211\u5199\u7740\u7ec3\u624b\uff0c\u5f53\u667a\u529b\u6e38\u620f\u73a9\u7684\u3002\u8ba9\u4f60\u8bef\u4f1a\u4e86\uff0c\u4e0d\u597d\u610f\u601d\u554a\u3002                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
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     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @atuocn                                                             <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : nthhdy <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @abersheeran #23<\/p>\n
    \u5b83\u7684\u4ee3\u6362\u89c4\u5219\u786e\u5b9e\u5f88\u7b80\u5355\uff0c\u4f46\u662f\u8fd9\u79cd\u4ece\u7b80\u5355\u7684\u5143\u7d20\u5f00\u59cb\u201c\u6784\u5efa\u4e00\u5207\u201d\u7684\u4e1c\u897f\uff0c\u7406\u89e3\u5982\u4f55\u6784\u5efa\u5f88\u96be\u3002
    \u4e0d\u6015\u7b11\u8bdd\uff0c\u6211\u89c9\u5f97\u633a\u96be\u7684\u3002\u6bd4\u5982\u7eaf\u7cb9\u7528\u51fd\u6570\u8868\u793a\u6574\u6570\u3001\u52a0\u51cf\u4e58\u9664\u3002\u90fd\u5199\u6210 lambda\uff0c\u770b\u8d77\u6765\u90fd\u5dee\u4e0d\u591a\u3002<\/p>\n
    \u6211\u7406\u89e3\u7814\u7a76\u4eba\u5458\u53ef\u80fd\u4f1a\u7528\u5427\uff0c\u73b0\u5728\u7684\u7a0b\u5e8f\u5458\u666e\u904d\u7a0b\u5e8f\u5458\u666e\u904d\u7528\u4e0d\u5230\u3002
    \u50cf Y combinator \u8fd9\u79cd\u4e1c\u897f\uff0c\u5c31\u7b97\u4e0d\u77e5\u9053\u5b83\u662f\u5565\u4e5f\u80fd\u5199\u51fa\u9012\u5f52\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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                                                                 @nthhdy \u662f\u7684\u3002\u6240\u4ee5\u6211\u5f53\u5b83\u662f\u667a\u529b\u6e38\u620f\u561b\u3002\u73b0\u5b9e\u7f16\u7a0b\u91cc\u6211\u6216\u8bb8\u7528\u4e0d\u5230\u91cc\u9762\u4efb\u4f55\u4e00\u4e2a\u4e1c\u897f\uff0c\u4f46\u53ef\u4ee5\u6c72\u53d6\u5b83\u7684\u601d\u60f3\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"
    Python lambda\uff1a\u7eaf\u6b63\u7684…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/426314"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=426314"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/426314\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=426314"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=426314"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=426314"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}