{"id":2272,"date":"2017-05-26T12:10:02","date_gmt":"2017-05-26T04:10:02","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=2272"},"modified":"2017-05-26T12:10:02","modified_gmt":"2017-05-26T04:10:02","slug":"python%e6%a0%87%e5%87%86%e5%ba%93-%e8%b5%b0%e9%a9%ac%e8%a7%82%e8%8a%b1","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/jishu\/python\/python%e6%a0%87%e5%87%86%e5%ba%93-%e8%b5%b0%e9%a9%ac%e8%a7%82%e8%8a%b1\/","title":{"rendered":"Python\u6807\u51c6\u5e93\u2014\u2014\u8d70\u9a6c\u89c2\u82b1"},"content":{"rendered":"<p>Python\u6709\u4e00\u5957\u5f88\u6709\u7528\u7684\u6807\u51c6\u5e93(standard 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float)\u53ef\u80fd\u7684\u4e0d\u8db3\u3002\u6807\u51c6\u5e93\u8fd8\u5305\u542b\u4e86random\u5305\uff0c\u7528\u4e8e\u5904\u7406\u968f\u673a\u6570\u76f8\u5173\u7684\u529f\u80fd\uff08\u4ea7\u751f\u968f\u673a\u6570\uff0c\u968f\u673a\u53d6\u6837\u7b49\uff09\u3002math\u5305\u8865\u5145\u4e86\u4e00\u4e9b\u91cd\u8981\u7684\u6570\u5b66\u5e38\u6570\u548c\u6570\u5b66\u51fd\u6570\uff0c\u6bd4\u5982pi\uff0c\u4e09\u89d2\u51fd\u6570\u7b49\u7b49\u3002<\/p>\n<p>(\u5c3d\u7ba1numpy\u5e76\u4e0d\u662f\u6807\u51c6\u5e93\u4e2d\u7684\u5305\uff0c\u4f46\u5b83\u7684\u6570\u7ec4\u8fd0\u7b97\u7684\u826f\u597d\u652f\u6301\uff0c\u8ba9\u5b83\u5728\u57fa\u4e8ePython\u7684\u79d1\u7814\u548c\u8ba1\u7b97\u65b9\u9762\u5f97\u5230\u76f8\u5f53\u5e7f\u6cdb\u7684\u5e94\u7528\uff0c\u53ef\u4ee5\u9002\u5f53\u5173\u6ce8\u3002)<\/p>\n<p>&nbsp;<\/p>\n<p>5) 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system)\u3001\u6587\u4ef6\u7cfb\u7edf(file system)\u7684\u4e92\u52a8\u3002Python\u53ef\u4ee5\u5b9e\u73b0\u4e00\u4e2a\u64cd\u4f5c\u7cfb\u7edf\u7684\u8bb8\u591a\u529f\u80fd\u3002\u5b83\u80fd\u591f\u50cfbash\u811a\u672c\u90a3\u6837\u7ba1\u7406\u64cd\u4f5c\u7cfb\u7edf\uff0c\u8fd9\u4e5f\u662fPython\u6709\u65f6\u88ab\u6210\u4e3a\u811a\u672c\u8bed\u8a00\u7684\u539f\u56e0\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>1) Python\u8fd0\u884c\u63a7\u5236<\/p>\n<p>sys\u5305\u88ab\u7528\u4e8e\u7ba1\u7406Python\u81ea\u8eab\u7684\u8fd0\u884c\u73af\u5883\u3002Python\u662f\u4e00\u4e2a\u89e3\u91ca\u5668(interpreter), \u4e5f\u662f\u4e00\u4e2a\u8fd0\u884c\u5728\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u7684\u7a0b\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u7528sys\u5305\u6765\u63a7\u5236\u8fd9\u4e00\u7a0b\u5e8f\u8fd0\u884c\u7684\u8bb8\u591a\u53c2\u6570\uff0c\u6bd4\u5982\u8bf4Python\u8fd0\u884c\u6240\u80fd\u5360\u636e\u7684\u5185\u5b58\u548cCPU\uff0c Python\u6240\u8981\u626b\u63cf\u7684\u8def\u5f84\u7b49\u3002\u53e6\u4e00\u4e2a\u91cd\u8981\u529f\u80fd\u662f\u548cPython\u81ea\u5df1\u7684\u547d\u4ee4\u884c\u4e92\u52a8\uff0c\u4ece\u547d\u4ee4\u884c\u8bfb\u53d6\u547d\u4ee4\u548c\u53c2\u6570\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>2) \u64cd\u4f5c\u7cfb\u7edf<\/p>\n<p>\u5982\u679c\u8bf4Python\u6784\u6210\u4e86\u4e00\u4e2a\u5c0f\u7684\u4e16\u754c\uff0c\u90a3\u4e48\u64cd\u4f5c\u7cfb\u7edf\u5c31\u662f\u5305\u56f4\u8fd9\u4e2a\u5c0f\u4e16\u754c\u7684\u5927\u4e16\u754c\u3002Python\u4e0e\u64cd\u4f5c\u7cfb\u7edf\u7684\u4e92\u52a8\u53ef\u4ee5\u8ba9Python\u5728\u81ea\u5df1\u7684\u5c0f\u4e16\u754c\u91cc\u7ba1\u7406\u6574\u4e2a\u5927\u4e16\u754c\u3002<\/p>\n<p>os\u5305\u662fPython\u4e0e\u64cd\u4f5c\u7cfb\u7edf\u7684\u63a5\u53e3\u3002\u6211\u4eec\u53ef\u4ee5\u7528os\u5305\u6765\u5b9e\u73b0\u64cd\u4f5c\u7cfb\u7edf\u7684\u8bb8\u591a\u529f\u80fd\uff0c\u6bd4\u5982\u7ba1\u7406\u7cfb\u7edf\u8fdb\u7a0b\uff0c\u6539\u53d8\u5f53\u524d\u8def\u5f84(\u76f8\u5f53\u4e8e\u2019cd\u2018)\uff0c\u6539\u53d8\u6587\u4ef6\u6743\u9650\u7b49\uff0c\u5efa\u7acb\u3002\u4f46\u8981\u6ce8\u610f\uff0cos\u5305\u662f\u5efa\u7acb\u5728\u64cd\u4f5c\u7cfb\u7edf\u7684\u5e73\u53f0\u4e0a\u7684\uff0c\u8bb8\u591a\u529f\u80fd\u5728Windows\u7cfb\u7edf\u4e0a\u662f\u65e0\u6cd5\u5b9e\u73b0\u7684\u3002\u53e6\u5916\uff0c\u5728\u4f7f\u7528os\u5305\u4e2d\uff0c\u8981\u6ce8\u610f\u5176\u4e2d\u7684\u6709\u4e9b\u529f\u80fd\u5df2\u7ecf\u88ab\u5176\u4ed6\u7684\u5305\u53d6\u4ee3\u3002<\/p>\n<p>\u6211\u4eec\u901a\u8fc7\u6587\u4ef6\u7cfb\u7edf\u6765\u7ba1\u7406\u78c1\u76d8\u4e0a\u50a8\u5b58\u7684\u6587\u4ef6\u3002\u67e5\u627e\u3001\u5220\u9664\uff0c\u590d\u5236\u6587\u4ef6\uff0c\u4ee5\u53ca\u5217\u51fa\u6587\u4ef6\u5217\u8868\u7b49\u90fd\u662f\u5e38\u89c1\u7684\u6587\u4ef6\u64cd\u4f5c\u3002\u8fd9\u4e9b\u529f\u80fd\u7ecf\u5e38\u53ef\u4ee5\u5728\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u770b\u5230\uff08\u6bd4\u5982ls, mv, cp\u7b49Linux\u547d\u4ee4\uff09\uff0c\u4f46\u73b0\u5728\u53ef\u4ee5\u901a\u8fc7Python\u6807\u51c6\u5e93\u4e2d\u7684glob\u5305\u3001shutil\u5305\u3001os.path\u5305\u3001\u4ee5\u53caos\u5305\u7684\u4e00\u4e9b\u51fd\u6570\u7b49\uff0c\u5728Python\u5185\u90e8\u5b9e\u73b0\u3002<\/p>\n<p>subprocess\u5305\u88ab\u7528\u4e8e\u6267\u884c\u5916\u90e8\u547d\u4ee4\uff0c\u5176\u529f\u80fd\u76f8\u5f53\u4e8e\u6211\u4eec\u5728\u64cd\u4f5c\u7cfb\u7edf\u7684\u547d\u4ee4\u884c\u4e2d\u8f93\u5165\u547d\u4ee4\u4ee5\u6267\u884c\uff0c\u6bd4\u5982\u5e38\u89c1\u7684\u7cfb\u7edf\u547d\u4ee4&#8217;ls&#8217;\u6216\u8005&#8217;cd&#8217;\uff0c\u8fd8\u53ef\u4ee5\u662f\u4efb\u610f\u53ef\u4ee5\u5728\u547d\u4ee4\u884c\u4e2d\u6267\u884c\u7684\u7a0b\u5e8f\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>4) \u7ebf\u7a0b\u4e0e\u8fdb\u7a0b<\/p>\n<p>Python\u652f\u6301\u591a\u7ebf\u7a0b(threading\u5305)\u8fd0\u884c\u548c\u591a\u8fdb\u7a0b(multiprocessing\u5305)\u8fd0\u884c\u3002\u901a\u8fc7\u591a\u7ebf\u7a0b\u548c\u591a\u8fdb\u7a0b\uff0c\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7edf\u8d44\u6e90\u7684\u5229\u7528\u7387\uff0c\u63d0\u9ad8\u8ba1\u7b97\u673a\u7684\u5904\u7406\u901f\u5ea6\u3002Python\u5728\u8fd9\u4e9b\u5305\u4e2d\uff0c\u9644\u5e26\u6709\u76f8\u5173\u7684\u901a\u4fe1\u548c\u5185\u5b58\u7ba1\u7406\u5de5\u5177\u3002\u6b64\u5916\uff0cPython\u8fd8\u652f\u6301\u7c7b\u4f3c\u4e8eUNIX\u7684signal\u7cfb\u7edf\uff0c\u4ee5\u5b9e\u73b0\u8fdb\u7a0b\u4e4b\u95f4\u7684\u7c97\u7cd9\u7684\u4fe1\u53f7\u901a\u4fe1\u3002<\/p>\n<p>&nbsp;<\/p>\n<h3>\u7b2c\u4e09\u7c7b\uff1a\u7f51\u7edc<\/h3>\n<p>\u73b0\u5728\uff0c\u7f51\u7edc\u529f\u80fd\u7684\u5f3a\u5f31\u5f88\u5927\u7a0b\u5ea6\u4e0a\u51b3\u5b9a\u4e86\u4e00\u4e2a\u8bed\u8a00\u7684\u6210\u529f\u4e0e\u5426\u3002\u4eceRuby, JavaScript, php\u8eab\u4e0a\u90fd\u53ef\u4ee5\u611f\u53d7\u5230\u8fd9\u4e00\u70b9\u3002Python\u7684\u6807\u51c6\u5e93\u5bf9\u4e92\u8054\u7f51\u5f00\u53d1\u7684\u652f\u6301\u5e76\u4e0d\u5145\u5206\uff0c\u8fd9\u4e5f\u662fDjango\u7b49\u57fa\u4e8ePython\u7684\u9879\u76ee\u7684\u51fa\u53d1\u70b9: \u589e\u5f3aPython\u5728\u7f51\u7edc\u65b9\u9762\u7684\u5e94\u7528\u529f\u80fd\u3002\u8fd9\u4e9b\u9879\u76ee\u53d6\u5f97\u4e86\u5f88\u5927\u7684\u6210\u529f\uff0c\u4e5f\u662f\u8bb8\u591a\u4eba\u613f\u610f\u6765\u5b66\u4e60Python\u7684\u4e00\u5927\u539f\u56e0\u3002\u4f46\u5e94\u6ce8\u610f\u5230\uff0c\u8fd9\u4e9b\u57fa\u4e8ePython\u7684\u9879\u76ee\u4e5f\u662f\u5efa\u7acb\u5728Python\u6807\u51c6\u5e93\u7684\u57fa\u7840\u4e0a\u7684\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>1) \u57fa\u4e8esocket\u5c42\u7684\u7f51\u7edc\u5e94\u7528<\/p>\n<p>socket\u662f\u7f51\u7edc\u53ef\u7f16\u7a0b\u90e8\u5206\u7684\u5e95\u5c42\u3002\u901a\u8fc7socket\u5305\uff0c\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u7ba1\u7406socket\uff0c\u6bd4\u5982\u8bf4\u5c06socket\u8d4b\u4e88\u7ed9\u67d0\u4e2a\u7aef\u53e3(port)\uff0c\u8fde\u63a5\u8fdc\u7a0b\u7aef\u53e3\uff0c\u4ee5\u53ca\u901a\u8fc7\u8fde\u63a5\u4f20\u8f93\u6570\u636e\u3002\u6211\u4eec\u4e5f\u53ef\u4ee5\u5229\u7528SocketServer\u5305\u66f4\u65b9\u4fbf\u5730\u5efa\u7acb\u670d\u52a1\u5668\u3002<\/p>\n<p>\u901a\u8fc7\u4e0e\u591a\u7ebf\u7a0b\u548c\u591a\u8fdb\u7a0b\u914d\u5408\uff0c\u5efa\u7acb\u591a\u7ebf\u7a0b\u6216\u8005\u591a\u8fdb\u7a0b\u7684\u670d\u52a1\u5668\uff0c\u53ef\u4ee5\u6709\u6548\u63d0\u9ad8\u670d\u52a1\u5668\u7684\u5de5\u4f5c\u80fd\u529b\u3002\u6b64\u5916\uff0c\u901a\u8fc7asyncore\u5305\u5b9e\u73b0\u5f02\u6b65\u5904\u7406\uff0c\u4e5f\u662f\u6539\u5584\u670d\u52a1\u5668\u6027\u80fd\u7684\u4e00\u4e2a\u65b9\u6848\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>2) \u4e92\u8054\u7f51\u5e94\u7528<\/p>\n<p>\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u7f51\u7edc\u7684\u5f88\u591a\u5e95\u5c42\u7ec6\u8282\uff08\u6bd4\u5982socket\uff09\u90fd\u662f\u88ab\u9ad8\u5c42\u7684\u534f\u8bae\u9690\u85cf\u8d77\u6765\u7684\u3002\u5efa\u7acb\u5728socket\u4e4b\u4e0a\u7684http\u534f\u8bae\u5b9e\u9645\u4e0a\u66f4\u5bb9\u6613\u4e5f\u66f4\u7ecf\u5e38\u88ab\u4f7f\u7528\u3002http\u901a\u8fc7request\/responce\u7684\u6a21\u5f0f\u5efa\u7acb\u8fde\u63a5\u5e76\u8fdb\u884c\u901a\u4fe1\uff0c\u5176\u4fe1\u606f\u5185\u5bb9\u4e5f\u66f4\u5bb9\u6613\u7406\u89e3\u3002Python\u6807\u51c6\u5e93\u4e2d\u6709http\u7684\u670d\u52a1\u5668\u7aef\u548c\u5ba2\u6237\u7aef\u7684\u5e94\u7528\u652f\u6301(BaseHTTPServer\u5305; urllib\u5305, urllib2\u5305), \u5e76\u4e14\u53ef\u4ee5\u901a\u8fc7urlparse\u5305\u5bf9URL\uff08URL\u5b9e\u9645\u4e0a\u8bf4\u660e\u4e86\u7f51\u7edc\u8d44\u6e90\u6240\u5728\u7684\u4f4d\u7f6e\uff09\u8fdb\u884c\u7406\u89e3\u548c\u64cd\u4f5c\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u4ee5\u4e0a\u7684\u4ecb\u7ecd\u6bd4\u8f83\u7c97\u7cd9\uff0c\u53ea\u5e0c\u671b\u80fd\u4e3a\u5927\u5bb6\u63d0\u4f9b\u4e00\u4e2a\u4e86\u89e3\u6807\u51c6\u5e93\u7684\u5165\u53e3\u3002\u6b22\u8fce\u5927\u5bb6\u4e00\u8d77\u5206\u4eab\u6807\u51c6\u5e93\u7684\u4f7f\u7528\u7ecf\u9a8c\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>\u4f5c\u8005\uff1aVamei \u51fa\u5904\uff1ahttps:\/\/www.cnblogs.com\/vamei<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Python\u6709\u4e00\u5957\u5f88\u6709\u7528\u7684\u6807\u51c6\u5e93(standard library)\u3002\u6807\u51c6\u5e93\u4f1a\u968f\u7740Python\u89e3\u91ca\u5668\uff0c\u4e00\u8d77\u5b89\u88c5 &#8230; <a title=\"Python\u6807\u51c6\u5e93\u2014\u2014\u8d70\u9a6c\u89c2\u82b1\" class=\"read-more\" href=\"https:\/\/cn.hostease.com\/xueyuan\/jishu\/python\/python%e6%a0%87%e5%87%86%e5%ba%93-%e8%b5%b0%e9%a9%ac%e8%a7%82%e8%8a%b1\/\" aria-label=\"\u9605\u8bfb Python\u6807\u51c6\u5e93\u2014\u2014\u8d70\u9a6c\u89c2\u82b1\">\u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[654],"tags":[673],"class_list":["post-2272","post","type-post","status-publish","format-standard","hentry","category-python","tag-python"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/comments?post=2272"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2272\/revisions"}],"predecessor-version":[{"id":2273,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2272\/revisions\/2273"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/media?parent=2272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/categories?post=2272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/tags?post=2272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}