{"id":1000883,"date":"2024-12-27T09:54:08","date_gmt":"2024-12-27T01:54:08","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1000883.html"},"modified":"2024-12-27T09:54:14","modified_gmt":"2024-12-27T01:54:14","slug":"java%e5%a6%82%e4%bd%95%e8%bd%acpython%e7%ae%97%e6%b3%95","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1000883.html","title":{"rendered":"java\u5982\u4f55\u8f6cpython\u7b97\u6cd5"},"content":{"rendered":"

\"java\u5982\u4f55\u8f6cpython\u7b97\u6cd5\"<\/p>\n

\u5728\u5c06Java\u7b97\u6cd5\u8f6c\u6362\u4e3aPython\u65f6\uff0c\u7406\u89e3Java\u4ee3\u7801\u3001\u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u7ed3\u6784\u3001\u5229\u7528Python\u7684\u7279\u6027\u6765\u4f18\u5316\u4ee3\u7801\u3001\u6d4b\u8bd5\u548c\u9a8c\u8bc1\u7ed3\u679c\u662f\u5173\u952e\u6b65\u9aa4\u3002<\/strong> \u5176\u4e2d\uff0c\u7406\u89e3Java\u4ee3\u7801\u662f\u6700\u57fa\u672c\u4e5f\u662f\u6700\u91cd\u8981\u7684\u4e00\u6b65\u3002\u8981\u8be6\u7ec6\u5206\u6790\u6bcf\u4e00\u884c\u4ee3\u7801\uff0c\u4e86\u89e3\u5176\u529f\u80fd\u548c\u5b9e\u73b0\u903b\u8f91\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u53ef\u4ee5\u786e\u4fdd\u5728Python\u4e2d\u5b9e\u73b0\u7684\u7b97\u6cd5\u4e0eJava\u7684\u539f\u59cb\u7b97\u6cd5\u529f\u80fd\u4e00\u81f4\u3002<\/p>\n<\/p>\n

\u5c06Java\u7b97\u6cd5\u8f6c\u6362\u4e3aPython\u5e76\u4e0d\u662f\u7b80\u5355\u7684\u4ee3\u7801\u8f6c\u6362\uff0c\u800c\u662f\u9700\u8981\u5bf9\u4e24\u79cd\u7f16\u7a0b\u8bed\u8a00\u7684\u6df1\u523b\u7406\u89e3\u3002Java\u662f\u4e00\u79cd\u9759\u6001\u7c7b\u578b\u8bed\u8a00\uff0c\u800cPython\u662f\u52a8\u6001\u7c7b\u578b\u8bed\u8a00\uff0c\u8fd9\u610f\u5473\u7740\u5728\u6570\u636e\u7c7b\u578b\u7684\u5904\u7406\u4e0a\u5b58\u5728\u663e\u8457\u5dee\u5f02\u3002\u5728Java\u4e2d\uff0c\u53d8\u91cf\u5fc5\u987b\u5728\u4f7f\u7528\u524d\u58f0\u660e\u7c7b\u578b\uff0c\u800cPython\u5219\u65e0\u9700\u663e\u5f0f\u58f0\u660e\u53d8\u91cf\u7c7b\u578b\uff0c\u8fd9\u4f7f\u5f97Python\u4ee3\u7801\u66f4\u7b80\u6d01\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u7406\u89e3Java\u4ee3\u7801<\/h3>\n<\/p>\n

\u5728\u5f00\u59cb\u8f6c\u6362\u4e4b\u524d\uff0c\u786e\u4fdd\u4f60\u5bf9Java\u4ee3\u7801\u7684\u6bcf\u4e2a\u90e8\u5206\u90fd\u975e\u5e38\u6e05\u695a\u3002\u4e86\u89e3\u6bcf\u4e2a\u65b9\u6cd5\u7684\u8f93\u5165\u3001\u8f93\u51fa\u53ca\u5176\u5728\u7a0b\u5e8f\u4e2d\u7684\u4f5c\u7528\u3002\u7406\u6e05\u4ee3\u7801\u7684\u903b\u8f91\u7ed3\u6784\u548c\u7b97\u6cd5\u6d41\u7a0b\uff0c\u8fd9\u6837\u53ef\u4ee5\u66f4\u597d\u5730\u5c06\u5176\u8f6c\u6362\u4e3aPython\u4ee3\u7801\u3002\u4f8b\u5982\uff0cJava\u4e2d\u7684\u5faa\u73af\u7ed3\u6784\u3001\u6761\u4ef6\u5224\u65ad\u7b49\u57fa\u672c\u8bed\u6cd5\u9700\u8981\u5728\u8f6c\u6362\u4e2d\u88ab\u51c6\u786e\u5730\u6620\u5c04\u5230Python\u4e2d\u3002<\/p>\n<\/p>\n

1\u3001\u5206\u6790Java\u7684\u5faa\u73af\u548c\u6761\u4ef6<\/h4>\n<\/p>\n

Java\u4e2d\u7684for<\/code>\u5faa\u73af\u548cwhile<\/code>\u5faa\u73af\u5728Python\u4e2d\u6709\u5bf9\u5e94\u7684\u5b9e\u73b0\u65b9\u5f0f\u3002Python\u4e5f\u63d0\u4f9b\u4e86\u7c7b\u4f3c\u7684\u7ed3\u6784\uff0c\u4f46\u8bed\u6cd5\u66f4\u4e3a\u7b80\u6d01\u3002\u4f8b\u5982\uff0cJava\u4e2d\u7684for\u5faa\u73af\uff1a<\/p>\n<\/p>\n

for (int i = 0; i < n; i++) {<\/p>\n
    \/\/ do something<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728Python\u4e2d\u53ef\u4ee5\u8868\u793a\u4e3a\uff1a<\/p>\n<\/p>\n
for i in range(n):<\/p>\n
    # do something<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u6761\u4ef6\u5224\u65ad\u5728\u4e24\u79cd\u8bed\u8a00\u4e2d\u975e\u5e38\u76f8\u4f3c\uff0c\u4f46\u8981\u6ce8\u610fPython\u4e0d\u9700\u8981\u4f7f\u7528\u62ec\u53f7\u6765\u5305\u88f9\u6761\u4ef6\u8868\u8fbe\u5f0f\u3002<\/p>\n<\/p>\n
2\u3001\u7406\u89e3Java\u4e2d\u7684\u7c7b\u548c\u5bf9\u8c61<\/h4>\n<\/p>\n
Java\u662f\u4e00\u79cd\u9762\u5411\u5bf9\u8c61\u7684\u8bed\u8a00\uff0c\u56e0\u6b64\u8bb8\u591a\u7b97\u6cd5\u5b9e\u73b0\u53ef\u80fd\u6d89\u53ca\u7c7b\u548c\u5bf9\u8c61\u3002\u7406\u89e3Java\u7c7b\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u662f\u6210\u529f\u8f6c\u6362\u4ee3\u7801\u7684\u5173\u952e\u3002\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u7c7b\u548c\u5bf9\u8c61\u6765\u4fdd\u6301\u76f8\u540c\u7684\u9762\u5411\u5bf9\u8c61\u7ed3\u6784\uff0cPython\u7684\u7c7b\u5b9a\u4e49\u65b9\u5f0f\u66f4\u52a0\u7075\u6d3b\uff0c\u5141\u8bb8\u52a8\u6001\u6dfb\u52a0\u5c5e\u6027\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u7ed3\u6784<\/h3>\n<\/p>\n
Java\u548cPython\u5728\u6570\u636e\u7ed3\u6784\u7684\u5b9e\u73b0\u4e0a\u6709\u76f8\u4f3c\u4e4b\u5904\uff0c\u4f46\u4e5f\u6709\u4e00\u4e9b\u5dee\u5f02\u3002\u4f8b\u5982\uff0cJava\u4e2d\u7684ArrayList\u5728Python\u4e2d\u53ef\u4ee5\u7528\u5217\u8868\uff08list\uff09\u6765\u66ff\u4ee3\uff0c\u800cJava\u7684HashMap\u53ef\u4ee5\u7528Python\u7684\u5b57\u5178\uff08dict\uff09\u6765\u5b9e\u73b0\u3002<\/p>\n<\/p>\n
1\u3001\u5217\u8868\u548c\u6570\u7ec4<\/h4>\n<\/p>\n
Python\u7684\u5217\u8868\u4e0eJava\u7684ArrayList\u7c7b\u4f3c\uff0c\u4f46Python\u7684\u5217\u8868\u662f\u52a8\u6001\u5927\u5c0f\u7684\uff0c\u53ef\u4ee5\u5305\u542b\u4e0d\u540c\u7c7b\u578b\u7684\u5143\u7d20\u3002\u5bf9\u4e8eJava\u7684\u6570\u7ec4\uff0cPython\u7684list<\/code>\u4e5f\u53ef\u4ee5\u8d77\u5230\u76f8\u540c\u4f5c\u7528\uff0c\u4f46\u9700\u8981\u6ce8\u610fPython\u7684list<\/code>\u662f\u52a8\u6001\u7684\u3002<\/p>\n<\/p>\n
2\u3001\u5b57\u5178\u548c\u6620\u5c04<\/h4>\n<\/p>\n
Java\u7684HashMap\u53ef\u4ee5\u7528Python\u7684\u5b57\u5178\u6765\u5b9e\u73b0\u3002\u4e24\u8005\u5728\u952e\u503c\u5bf9\u7684\u5b58\u50a8\u548c\u64cd\u4f5c\u4e0a\u975e\u5e38\u76f8\u4f3c\uff0c\u4f46Python\u7684\u5b57\u5178\u63d0\u4f9b\u4e86\u66f4\u4e30\u5bcc\u7684\u64cd\u4f5c\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u5229\u7528Python\u7684\u7279\u6027\u4f18\u5316\u4ee3\u7801<\/h3>\n<\/p>\n
Python\u6709\u8bb8\u591a\u5185\u7f6e\u51fd\u6570\u548c\u5e93\uff0c\u53ef\u4ee5\u7b80\u5316\u7b97\u6cd5\u5b9e\u73b0\u3002\u4f8b\u5982\uff0cPython\u7684itertools<\/code>\u5e93\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u8fed\u4ee3\u5668\u64cd\u4f5c\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u4e8e\u590d\u6742\u7684\u8fed\u4ee3\u903b\u8f91\u3002\u6b64\u5916\uff0cPython\u7684collections<\/code>\u5e93\u63d0\u4f9b\u4e86Counter<\/code>\u3001defaultdict<\/code>\u7b49\u6570\u636e\u7ed3\u6784\uff0c\u8fd9\u4e9b\u90fd\u53ef\u4ee5\u7528\u6765\u4f18\u5316\u4ee3\u7801\u3002<\/p>\n<\/p>\n
1\u3001\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f<\/h4>\n<\/p>\n
Python\u7684\u5217\u8868\u63a8\u5bfc\u5f0f\u53ef\u4ee5\u7528\u6765\u7b80\u5316\u5217\u8868\u7684\u521b\u5efa\u548c\u64cd\u4f5c\u3002\u6bd4\u5982\uff0c\u5c06\u4e00\u4e2a\u6574\u6570\u6570\u7ec4\u7684\u6bcf\u4e2a\u5143\u7d20\u5e73\u65b9\uff0c\u53ef\u4ee5\u7528\u5982\u4e0b\u65b9\u5f0f\u5b9e\u73b0\uff1a<\/p>\n<\/p>\n
squared = [x2 for x in nums]<\/p>\n
<\/code><\/pre>\n<\/p>\n
2\u3001\u4f7f\u7528\u751f\u6210\u5668<\/h4>\n<\/p>\n
\u751f\u6210\u5668\u53ef\u4ee5\u7528\u4e8e\u5904\u7406\u5927\u6570\u636e\u96c6\uff0c\u8282\u7701\u5185\u5b58\u3002\u4e0e\u5217\u8868\u63a8\u5bfc\u5f0f\u7c7b\u4f3c\uff0c\u4f46\u751f\u6210\u5668\u4f7f\u7528\u5706\u62ec\u53f7()<\/code>\u800c\u4e0d\u662f\u65b9\u62ec\u53f7[]<\/code>\u3002<\/p>\n<\/p>\n
\u56db\u3001\u6d4b\u8bd5\u548c\u9a8c\u8bc1\u7ed3\u679c<\/h3>\n<\/p>\n
\u8f6c\u6362\u540e\u7684Python\u4ee3\u7801\u9700\u8981\u7ecf\u8fc7\u4e25\u683c\u7684\u6d4b\u8bd5\uff0c\u4ee5\u786e\u4fdd\u5176\u529f\u80fd\u4e0eJava\u4ee3\u7801\u4e00\u81f4\u3002\u53ef\u4ee5\u4f7f\u7528Python\u7684unittest<\/code>\u6216pytest<\/code>\u5e93\u6765\u7f16\u5199\u6d4b\u8bd5\u7528\u4f8b\uff0c\u9a8c\u8bc1\u7b97\u6cd5\u7684\u6b63\u786e\u6027\u3002<\/p>\n<\/p>\n
1\u3001\u7f16\u5199\u6d4b\u8bd5\u7528\u4f8b<\/h4>\n<\/p>\n
\u901a\u8fc7\u7f16\u5199\u6d4b\u8bd5\u7528\u4f8b\uff0c\u9a8c\u8bc1Python\u4ee3\u7801\u5728\u5404\u79cd\u8f93\u5165\u6761\u4ef6\u4e0b\u7684\u8f93\u51fa\u662f\u5426\u6b63\u786e\u3002\u6d4b\u8bd5\u7528\u4f8b\u5e94\u6db5\u76d6\u5404\u79cd\u8fb9\u754c\u6761\u4ef6\u548c\u5f02\u5e38\u60c5\u51b5\u3002<\/p>\n<\/p>\n
2\u3001\u8c03\u8bd5\u548c\u4f18\u5316<\/h4>\n<\/p>\n
\u6d4b\u8bd5\u8fc7\u7a0b\u4e2d\u53ef\u80fd\u4f1a\u53d1\u73b0\u95ee\u9898\uff0c\u9700\u8981\u8fdb\u884c\u8c03\u8bd5\u3002Python\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u8c03\u8bd5\u5de5\u5177\uff0c\u5982pdb<\/code>\u548cipdb<\/code>\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5b9a\u4f4d\u548c\u89e3\u51b3\u95ee\u9898\u3002\u540c\u65f6\uff0c\u5229\u7528Python\u7684\u6027\u80fd\u5206\u6790\u5de5\u5177\uff0c\u5982cProfile<\/code>\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u4f18\u5316\u4ee3\u7801\u6027\u80fd\u3002<\/p>\n<\/p>\n
\u4e94\u3001\u603b\u7ed3<\/h3>\n<\/p>\n
\u5c06Java\u7b97\u6cd5\u8f6c\u6362\u4e3aPython\u9700\u8981\u7406\u89e3Java\u4ee3\u7801\u7684\u903b\u8f91\u3001\u9009\u62e9\u9002\u5408\u7684Python\u6570\u636e\u7ed3\u6784\u3001\u5229\u7528Python\u7684\u7279\u6027\u8fdb\u884c\u4f18\u5316\uff0c\u5e76\u901a\u8fc7\u4e25\u683c\u7684\u6d4b\u8bd5\u9a8c\u8bc1\u7ed3\u679c\u7684\u6b63\u786e\u6027\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u6cd5\uff0c\u53ef\u4ee5\u786e\u4fdd\u8f6c\u6362\u540e\u7684Python\u4ee3\u7801\u65e2\u9ad8\u6548\u53c8\u6613\u4e8e\u7ef4\u62a4\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5c06Java\u4ee3\u7801\u4e2d\u7684\u7b97\u6cd5\u903b\u8f91\u8f6c\u6362\u4e3aPython\uff1f<\/strong>
\u5728\u8f6c\u6362Java\u4ee3\u7801\u4e3aPython\u65f6\uff0c\u9700\u8981\u9996\u5148\u7406\u89e3Java\u4ee3\u7801\u7684\u903b\u8f91\u548c\u7ed3\u6784\u3002Python\u7684\u8bed\u6cd5\u4e0eJava\u6709\u663e\u8457\u4e0d\u540c\uff0c\u4f8b\u5982Python\u4e0d\u9700\u8981\u58f0\u660e\u53d8\u91cf\u7c7b\u578b\uff0c\u4e14\u4f7f\u7528\u7f29\u8fdb\u6765\u8868\u793a\u4ee3\u7801\u5757\u3002\u53ef\u4ee5\u9010\u884c\u5206\u6790Java\u4ee3\u7801\uff0c\u8bc6\u522b\u5173\u952e\u7b97\u6cd5\u903b\u8f91\uff0c\u7136\u540e\u4f7f\u7528Python\u7684\u76f8\u5e94\u8bed\u6cd5\u6765\u5b9e\u73b0\u76f8\u540c\u7684\u529f\u80fd\u3002<\/p>\n
Java\u548cPython\u5728\u6570\u636e\u7ed3\u6784\u4e0a\u6709\u4ec0\u4e48\u4e3b\u8981\u533a\u522b\uff1f<\/strong>
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\u5728\u5c06Java\u7b97\u6cd5\u8f6c\u6362\u4e3aPython\u65f6\uff0c\u5982\u4f55\u5904\u7406\u5f02\u5e38\u548c\u9519\u8bef\uff1f<\/strong>
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