{"id":1071039,"date":"2025-01-08T11:03:40","date_gmt":"2025-01-08T03:03:40","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1071039.html"},"modified":"2025-01-08T11:03:43","modified_gmt":"2025-01-08T03:03:43","slug":"python%e5%a6%82%e4%bd%95%e7%94%9f%e6%88%90%e9%87%8d%e5%a4%8d%e5%85%83%e7%b4%a0%e7%9a%84%e5%88%97%e8%a1%a8-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1071039.html","title":{"rendered":"python\u5982\u4f55\u751f\u6210\u91cd\u590d\u5143\u7d20\u7684\u5217\u8868"},"content":{"rendered":"

\"python\u5982\u4f55\u751f\u6210\u91cd\u590d\u5143\u7d20\u7684\u5217\u8868\"<\/p>\n

\u4f7f\u7528\u5217\u8868\u751f\u6210\u5f0f\u3001\u4f7f\u7528\u4e58\u6cd5\u8fd0\u7b97\u7b26\u3001\u4f7f\u7528for\u5faa\u73af<\/strong><\/p>\n<\/p>\n

\u5728Python\u4e2d\u751f\u6210\u91cd\u590d\u5143\u7d20\u7684\u5217\u8868\u6709\u591a\u79cd\u65b9\u5f0f\uff0c\u5176\u4e2d\u6700\u5e38\u89c1\u7684\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528\u5217\u8868\u751f\u6210\u5f0f\u3001\u4f7f\u7528\u4e58\u6cd5\u8fd0\u7b97\u7b26\u4ee5\u53ca\u4f7f\u7528for\u5faa\u73af\u3002\u5217\u8868\u751f\u6210\u5f0f\u662f\u4e00\u79cd\u7b80\u6d01\u800c\u9ad8\u6548\u7684\u65b9\u6cd5\u3001\u4e58\u6cd5\u8fd0\u7b97\u7b26\u5219\u6700\u4e3a\u76f4\u89c2\u548c\u7b80\u5355\u3001for\u5faa\u73af\u65b9\u6cd5\u5219\u9002\u7528\u4e8e\u66f4\u590d\u6742\u7684\u573a\u666f<\/strong>\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u51e0\u79cd\u65b9\u6cd5\u4e2d\u7684\u5217\u8868\u751f\u6210\u5f0f\u3002<\/p>\n<\/p>\n

\u5217\u8868\u751f\u6210\u5f0f\u662f\u4e00\u79cd\u975e\u5e38\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u6765\u751f\u6210\u5404\u79cd\u5217\u8868\uff0c\u5305\u62ec\u5305\u542b\u91cd\u590d\u5143\u7d20\u7684\u5217\u8868\u3002\u5b83\u7684\u8bed\u6cd5\u975e\u5e38\u7b80\u6d01\uff0c\u53ea\u9700\u8981\u4e00\u884c\u4ee3\u7801\u5c31\u53ef\u4ee5\u751f\u6210\u6240\u9700\u7684\u5217\u8868\u3002\u4f8b\u5982\uff0c\u8981\u751f\u6210\u4e00\u4e2a\u5305\u542b10\u4e2a\u503c\u4e3a5\u7684\u5217\u8868\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n

repeated_list = [5 for _ in range(10)]<\/p>\n
print(repeated_list)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u6bb5\u4ee3\u7801\u4e2d\uff0c[5 for _ in range(10)]<\/code> \u662f\u4e00\u4e2a\u5217\u8868\u751f\u6210\u5f0f\uff0c\u5176\u4e2d 5<\/code> \u662f\u8981\u91cd\u590d\u7684\u5143\u7d20\uff0crange(10)<\/code> \u8868\u793a\u8981\u751f\u6210\u7684\u5217\u8868\u957f\u5ea6\u4e3a10\u3002\u4e0b\u5212\u7ebf _<\/code> \u662f\u4e00\u4e2a\u5e38\u7528\u7684\u5360\u4f4d\u7b26\uff0c\u8868\u793a\u6211\u4eec\u4e0d\u9700\u8981\u5173\u5fc3\u5faa\u73af\u53d8\u91cf\u7684\u5177\u4f53\u503c\u3002<\/p>\n<\/p>\n
\u901a\u8fc7\u5217\u8868\u751f\u6210\u5f0f\u751f\u6210\u91cd\u590d\u5143\u7d20\u7684\u5217\u8868\u4e0d\u4ec5\u7b80\u6d01\uff0c\u800c\u4e14\u5728\u4e00\u4e9b\u60c5\u51b5\u4e0b\u4e5f\u80fd\u63d0\u9ad8\u4ee3\u7801\u7684\u6267\u884c\u6548\u7387\u3002<\/p>\n<\/p>\n
\u4e00\u3001\u5217\u8868\u751f\u6210\u5f0f<\/p>\n<\/p>\n
\u5217\u8868\u751f\u6210\u5f0f\u662f\u4e00\u79cd\u975e\u5e38\u7b80\u6d01\u9ad8\u6548\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u7528\u6765\u751f\u6210\u5404\u79cd\u5217\u8868\u3002\u5b83\u7684\u8bed\u6cd5\u975e\u5e38\u7b80\u6d01\uff0c\u53ea\u9700\u8981\u4e00\u884c\u4ee3\u7801\u5c31\u53ef\u4ee5\u751f\u6210\u6240\u9700\u7684\u5217\u8868\u3002\u4f8b\u5982\uff0c\u8981\u751f\u6210\u4e00\u4e2a\u5305\u542b10\u4e2a\u503c\u4e3a5\u7684\u5217\u8868\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n
repeated_list = [5 for _ in range(10)]<\/p>\n
print(repeated_list)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u6bb5\u4ee3\u7801\u4e2d\uff0c[5 for _ in range(10)]<\/code> \u662f\u4e00\u4e2a\u5217\u8868\u751f\u6210\u5f0f\uff0c\u5176\u4e2d 5<\/code> \u662f\u8981\u91cd\u590d\u7684\u5143\u7d20\uff0crange(10)<\/code> \u8868\u793a\u8981\u751f\u6210\u7684\u5217\u8868\u957f\u5ea6\u4e3a10\u3002\u4e0b\u5212\u7ebf _<\/code> \u662f\u4e00\u4e2a\u5e38\u7528\u7684\u5360\u4f4d\u7b26\uff0c\u8868\u793a\u6211\u4eec\u4e0d\u9700\u8981\u5173\u5fc3\u5faa\u73af\u53d8\u91cf\u7684\u5177\u4f53\u503c\u3002<\/p>\n<\/p>\n
\u5217\u8868\u751f\u6210\u5f0f\u4e0d\u4ec5\u53ef\u4ee5\u751f\u6210\u5305\u542b\u91cd\u590d\u5143\u7d20\u7684\u5217\u8868\uff0c\u8fd8\u53ef\u4ee5\u7528\u6765\u751f\u6210\u5305\u542b\u4e0d\u540c\u5143\u7d20\u7684\u5217\u8868\u3002\u4f8b\u5982\uff0c\u751f\u6210\u4e00\u4e2a\u5217\u8868\uff0c\u5176\u4e2d\u6bcf\u4e2a\u5143\u7d20\u662f\u5176\u7d22\u5f15\u503c\u7684\u5e73\u65b9\uff1a<\/p>\n<\/p>\n
squared_list = [i2 for i in range(10)]<\/p>\n
print(squared_list)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u6bb5\u4ee3\u7801\u751f\u6210\u4e86\u4e00\u4e2a\u5305\u542b0\u52309\u7684\u5e73\u65b9\u503c\u7684\u5217\u8868\u3002\u5217\u8868\u751f\u6210\u5f0f\u7684\u5f3a\u5927\u4e4b\u5904\u5728\u4e8e\u5b83\u53ef\u4ee5\u7528\u975e\u5e38\u7b80\u6d01\u7684\u8bed\u6cd5\u5b9e\u73b0\u590d\u6742\u7684\u5217\u8868\u751f\u6210\u903b\u8f91\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u4e58\u6cd5\u8fd0\u7b97\u7b26<\/p>\n<\/p>\n
\u4f7f\u7528\u4e58\u6cd5\u8fd0\u7b97\u7b26\u751f\u6210\u91cd\u590d\u5143\u7d20\u7684\u5217\u8868\u662f\u6700\u4e3a\u76f4\u89c2\u548c\u7b80\u5355\u7684\u65b9\u6cd5\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u5c06\u4e00\u4e2a\u5305\u542b\u5355\u4e2a\u5143\u7d20\u7684\u5217\u8868\u4e0e\u4e00\u4e2a\u6574\u6570\u76f8\u4e58\u6765\u751f\u6210\u91cd\u590d\u5143\u7d20\u7684\u5217\u8868\u3002\u4f8b\u5982\uff0c\u8981\u751f\u6210\u4e00\u4e2a\u5305\u542b10\u4e2a\u503c\u4e3a5\u7684\u5217\u8868\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n
repeated_list = [5] * 10<\/p>\n
print(repeated_list)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u6bb5\u4ee3\u7801\u4e2d\uff0c[5] * 10<\/code> \u8868\u793a\u5c06\u5305\u542b\u5355\u4e2a\u5143\u7d205\u7684\u5217\u8868\u4e0e\u6574\u657010\u76f8\u4e58\uff0c\u7ed3\u679c\u662f\u4e00\u4e2a\u5305\u542b10\u4e2a\u503c\u4e3a5\u7684\u5217\u8868\u3002\u8fd9\u79cd\u65b9\u6cd5\u975e\u5e38\u76f4\u89c2\uff0c\u4ee3\u7801\u7b80\u6d01\u660e\u4e86\u3002<\/p>\n<\/p>\n
\u4e58\u6cd5\u8fd0\u7b97\u7b26\u4e0d\u4ec5\u53ef\u4ee5\u7528\u6765\u751f\u6210\u5305\u542b\u76f8\u540c\u5143\u7d20\u7684\u5217\u8868\uff0c\u8fd8\u53ef\u4ee5\u7528\u6765\u751f\u6210\u5305\u542b\u4e0d\u540c\u5143\u7d20\u7684\u5217\u8868\u3002\u4f8b\u5982\uff0c\u751f\u6210\u4e00\u4e2a\u5305\u542b10\u4e2a\u503c\u4e3aTrue\u7684\u5217\u8868\uff1a<\/p>\n<\/p>\n
bool_list = [True] * 10<\/p>\n
print(bool_list)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u5728\u751f\u6210\u5305\u542b\u76f8\u540c\u5143\u7d20\u7684\u5217\u8868\u65f6\u975e\u5e38\u9ad8\u6548\uff0c\u56e0\u4e3a\u5b83\u53ea\u9700\u8981\u8fdb\u884c\u4e00\u6b21\u5143\u7d20\u590d\u5236\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
\u4e09\u3001for\u5faa\u73af<\/p>\n<\/p>\n
\u4f7f\u7528for\u5faa\u73af\u751f\u6210\u91cd\u590d\u5143\u7d20\u7684\u5217\u8868\u9002\u7528\u4e8e\u66f4\u590d\u6742\u7684\u573a\u666f\u3002\u4f8b\u5982\uff0c\u5f53\u6211\u4eec\u9700\u8981\u5728\u751f\u6210\u5217\u8868\u7684\u8fc7\u7a0b\u4e2d\u8fdb\u884c\u4e00\u4e9b\u590d\u6742\u7684\u903b\u8f91\u64cd\u4f5c\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528for\u5faa\u73af\u6765\u5b9e\u73b0\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528for\u5faa\u73af\u751f\u6210\u5305\u542b10\u4e2a\u503c\u4e3a5\u7684\u5217\u8868\u7684\u4f8b\u5b50\uff1a<\/p>\n<\/p>\n
repeated_list = []<\/p>\n
for _ in range(10):<\/p>\n
    repeated_list.append(5)<\/p>\n
print(repeated_list)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u6bb5\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u521b\u5efa\u4e00\u4e2a\u7a7a\u5217\u8868 repeated_list<\/code>\uff0c\u7136\u540e\u4f7f\u7528for\u5faa\u73af\u5c06\u503c\u4e3a5\u7684\u5143\u7d20\u6dfb\u52a0\u5230\u5217\u8868\u4e2d\u3002\u5faa\u73af\u6267\u884c10\u6b21\uff0c\u56e0\u6b64\u6700\u7ec8\u751f\u6210\u7684\u5217\u8868\u5305\u542b10\u4e2a\u503c\u4e3a5\u7684\u5143\u7d20\u3002<\/p>\n<\/p>\n
\u4f7f\u7528for\u5faa\u73af\u751f\u6210\u5217\u8868\u867d\u7136\u4ee3\u7801\u7565\u663e\u5197\u957f\uff0c\u4f46\u5b83\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u7075\u6d3b\u6027\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u5faa\u73af\u8fc7\u7a0b\u4e2d\u8fdb\u884c\u4e00\u4e9b\u6761\u4ef6\u5224\u65ad\u6216\u5176\u4ed6\u64cd\u4f5c\uff1a<\/p>\n<\/p>\n
custom_list = []<\/p>\n
for i in range(10):<\/p>\n
    if i % 2 == 0:<\/p>\n
        custom_list.append(i)<\/p>\n
    else:<\/p>\n
        custom_list.append(i * 2)<\/p>\n
print(custom_list)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u6bb5\u4ee3\u7801\u751f\u6210\u4e86\u4e00\u4e2a\u5305\u542b0\u52309\u7684\u81ea\u5b9a\u4e49\u5217\u8868\uff0c\u5176\u4e2d\u5076\u6570\u4fdd\u6301\u4e0d\u53d8\uff0c\u5947\u6570\u4e58\u4ee52\u3002for\u5faa\u73af\u65b9\u6cd5\u975e\u5e38\u9002\u5408\u9700\u8981\u5728\u751f\u6210\u5217\u8868\u8fc7\u7a0b\u4e2d\u8fdb\u884c\u590d\u6742\u903b\u8f91\u64cd\u4f5c\u7684\u573a\u666f\u3002<\/p>\n<\/p>\n
\u56db\u3001\u4f7f\u7528NumPy\u5e93<\/p>\n<\/p>\n
NumPy\u662f\u4e00\u4e2a\u975e\u5e38\u5f3a\u5927\u7684\u79d1\u5b66\u8ba1\u7b97\u5e93\uff0c\u63d0\u4f9b\u4e86\u8bb8\u591a\u9ad8\u6548\u7684\u6570\u7ec4\u64cd\u4f5c\u51fd\u6570\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528NumPy\u5e93\u4e2d\u7684numpy.full()<\/code>\u51fd\u6570\u751f\u6210\u5305\u542b\u91cd\u590d\u5143\u7d20\u7684\u6570\u7ec4\uff0c\u7136\u540e\u5c06\u5176\u8f6c\u6362\u4e3a\u5217\u8868\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
import numpy as np<\/p>\n
repeated_array = np.full(10, 5)<\/p>\n
repeated_list = repeated_array.tolist()<\/p>\n
print(repeated_list)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u6bb5\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u4f7f\u7528np.full(10, 5)<\/code>\u751f\u6210\u4e00\u4e2a\u5305\u542b10\u4e2a\u503c\u4e3a5\u7684NumPy\u6570\u7ec4\uff0c\u7136\u540e\u4f7f\u7528tolist()<\/code>\u65b9\u6cd5\u5c06\u5176\u8f6c\u6362\u4e3aPython\u5217\u8868\u3002\u4f7f\u7528NumPy\u5e93\u751f\u6210\u91cd\u590d\u5143\u7d20\u7684\u5217\u8868\u5728\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\u65f6\u975e\u5e38\u9ad8\u6548\u3002<\/p>\n<\/p>\n
NumPy\u5e93\u63d0\u4f9b\u4e86\u8bb8\u591a\u5176\u4ed6\u6709\u7528\u7684\u6570\u7ec4\u64cd\u4f5c\u51fd\u6570\uff0c\u4f8b\u5982\u751f\u6210\u968f\u673a\u6570\u7ec4\u3001\u7ebf\u6027\u7a7a\u95f4\u6570\u7ec4\u7b49\u3002\u5982\u679c\u9700\u8981\u5728\u751f\u6210\u5217\u8868\u8fc7\u7a0b\u4e2d\u8fdb\u884c\u590d\u6742\u7684\u6570\u503c\u8ba1\u7b97\uff0cNumPy\u5e93\u662f\u4e00\u4e2a\u975e\u5e38\u597d\u7684\u9009\u62e9\u3002<\/p>\n<\/p>\n
\u4e94\u3001\u4f7f\u7528itertools\u6a21\u5757<\/p>\n<\/p>\n
itertools<\/code>\u6a21\u5757\u63d0\u4f9b\u4e86\u8bb8\u591a\u9ad8\u6548\u7684\u8fed\u4ee3\u5668\u51fd\u6570\uff0c\u53ef\u4ee5\u7528\u6765\u751f\u6210\u5404\u79cd\u590d\u6742\u7684\u8fed\u4ee3\u5e8f\u5217\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528itertools.repeat()<\/code>\u51fd\u6570\u751f\u6210\u4e00\u4e2a\u91cd\u590d\u5143\u7d20\u7684\u8fed\u4ee3\u5668\uff0c\u7136\u540e\u5c06\u5176\u8f6c\u6362\u4e3a\u5217\u8868\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
import itertools<\/p>\n
repeated_iterator = itertools.repeat(5, 10)<\/p>\n
repeated_list = list(repeated_iterator)<\/p>\n
print(repeated_list)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u6bb5\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u4f7f\u7528itertools.repeat(5, 10)<\/code>\u751f\u6210\u4e00\u4e2a\u91cd\u590d\u5143\u7d205\u7684\u8fed\u4ee3\u5668\uff0c\u7136\u540e\u4f7f\u7528list()<\/code>\u51fd\u6570\u5c06\u5176\u8f6c\u6362\u4e3aPython\u5217\u8868\u3002\u4f7f\u7528itertools<\/code>\u6a21\u5757\u751f\u6210\u91cd\u590d\u5143\u7d20\u7684\u5217\u8868\u5728\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\u65f6\u975e\u5e38\u9ad8\u6548\uff0c\u56e0\u4e3a\u8fed\u4ee3\u5668\u53ea\u5728\u9700\u8981\u65f6\u751f\u6210\u5143\u7d20\uff0c\u8282\u7701\u4e86\u5185\u5b58\u3002<\/p>\n<\/p>\n
itertools<\/code>\u6a21\u5757\u63d0\u4f9b\u4e86\u8bb8\u591a\u5176\u4ed6\u6709\u7528\u7684\u8fed\u4ee3\u5668\u51fd\u6570\uff0c\u4f8b\u5982itertools.cycle()<\/code>\u3001itertools.chAI<\/a>n()<\/code>\u7b49\u3002\u5982\u679c\u9700\u8981\u5728\u751f\u6210\u5217\u8868\u8fc7\u7a0b\u4e2d\u8fdb\u884c\u590d\u6742\u7684\u8fed\u4ee3\u64cd\u4f5c\uff0citertools<\/code>\u6a21\u5757\u662f\u4e00\u4e2a\u975e\u5e38\u597d\u7684\u9009\u62e9\u3002<\/p>\n<\/p>\n
\u516d\u3001\u81ea\u5b9a\u4e49\u51fd\u6570<\/p>\n<\/p>\n
\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u4e00\u4e9b\u7279\u5b9a\u9700\u6c42\uff0c\u9700\u8981\u751f\u6210\u5305\u542b\u91cd\u590d\u5143\u7d20\u7684\u5217\u8868\u3002\u6b64\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u7f16\u5199\u81ea\u5b9a\u4e49\u51fd\u6570\u6765\u5b9e\u73b0\u3002\u4f8b\u5982\uff0c\u7f16\u5199\u4e00\u4e2a\u51fd\u6570\uff0c\u751f\u6210\u5305\u542b\u6307\u5b9a\u6570\u91cf\u548c\u5143\u7d20\u7684\u5217\u8868\uff1a<\/p>\n<\/p>\n
def generate_repeated_list(element, count):<\/p>\n
    return [element] * count<\/p>\n
repeated_list = generate_repeated_list(5, 10)<\/p>\n
print(repeated_list)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u6bb5\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3agenerate_repeated_list<\/code>\u7684\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u63a5\u53d7\u4e24\u4e2a\u53c2\u6570\uff1aelement<\/code>\u8868\u793a\u8981\u91cd\u590d\u7684\u5143\u7d20\uff0ccount<\/code>\u8868\u793a\u751f\u6210\u7684\u5217\u8868\u957f\u5ea6\u3002\u51fd\u6570\u5185\u90e8\u4f7f\u7528\u4e58\u6cd5\u8fd0\u7b97\u7b26\u751f\u6210\u5305\u542b\u91cd\u590d\u5143\u7d20\u7684\u5217\u8868\uff0c\u5e76\u8fd4\u56de\u7ed3\u679c\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u53ef\u4ee5\u6839\u636e\u9700\u8981\u751f\u6210\u5305\u542b\u4e0d\u540c\u5143\u7d20\u548c\u6570\u91cf\u7684\u5217\u8868\u3002<\/p>\n<\/p>\n
\u81ea\u5b9a\u4e49\u51fd\u6570\u8fd8\u53ef\u4ee5\u7ed3\u5408\u5176\u4ed6\u65b9\u6cd5\uff0c\u5982\u5217\u8868\u751f\u6210\u5f0f\u3001for\u5faa\u73af\u7b49\uff0c\u4ee5\u5b9e\u73b0\u66f4\u590d\u6742\u7684\u903b\u8f91\u3002\u4f8b\u5982\uff0c\u7f16\u5199\u4e00\u4e2a\u51fd\u6570\uff0c\u751f\u6210\u5305\u542b\u6307\u5b9a\u6570\u91cf\u7684\u5076\u6570\u5217\u8868\uff1a<\/p>\n<\/p>\n
def generate_even_list(count):<\/p>\n
    return [i * 2 for i in range(count)]<\/p>\n
even_list = generate_even_list(10)<\/p>\n
print(even_list)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u6bb5\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3agenerate_even_list<\/code>\u7684\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u63a5\u53d7\u4e00\u4e2a\u53c2\u6570count<\/code>\uff0c\u8868\u793a\u751f\u6210\u7684\u5217\u8868\u957f\u5ea6\u3002\u51fd\u6570\u5185\u90e8\u4f7f\u7528\u5217\u8868\u751f\u6210\u5f0f\u751f\u6210\u5305\u542b\u6307\u5b9a\u6570\u91cf\u7684\u5076\u6570\u5217\u8868\uff0c\u5e76\u8fd4\u56de\u7ed3\u679c\u3002<\/p>\n<\/p>\n
\u81ea\u5b9a\u4e49\u51fd\u6570\u7684\u7075\u6d3b\u6027\u548c\u53ef\u6269\u5c55\u6027\u4f7f\u5176\u5728\u5904\u7406\u590d\u6742\u9700\u6c42\u65f6\u975e\u5e38\u6709\u7528\u3002<\/p>\n<\/p>\n
\u4e03\u3001\u4f7f\u7528\u591a\u7ef4\u6570\u7ec4<\/p>\n<\/p>\n
\u5728\u67d0\u4e9b\u573a\u666f\u4e0b\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u751f\u6210\u5305\u542b\u91cd\u590d\u5143\u7d20\u7684\u591a\u7ef4\u6570\u7ec4\u3002\u53ef\u4ee5\u4f7f\u7528NumPy\u5e93\u6216\u5217\u8868\u751f\u6210\u5f0f\u6765\u5b9e\u73b0\u3002\u4f8b\u5982\uff0c\u4f7f\u7528NumPy\u5e93\u751f\u6210\u4e00\u4e2a3×3\u7684\u4e8c\u7ef4\u6570\u7ec4\uff0c\u6bcf\u4e2a\u5143\u7d20\u4e3a5\uff1a<\/p>\n<\/p>\n
import numpy as np<\/p>\n
repeated_array = np.full((3, 3), 5)<\/p>\n
print(repeated_array)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u6bb5\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528np.full((3, 3), 5)<\/code>\u751f\u6210\u4e00\u4e2a3×3\u7684\u4e8c\u7ef4\u6570\u7ec4\uff0c\u6bcf\u4e2a\u5143\u7d20\u4e3a5\u3002<\/p>\n<\/p>\n
\u540c\u6837\uff0c\u53ef\u4ee5\u4f7f\u7528\u5217\u8868\u751f\u6210\u5f0f\u751f\u6210\u591a\u7ef4\u6570\u7ec4\uff1a<\/p>\n<\/p>\n
repeated_list = [[5 for _ in range(3)] for _ in range(3)]<\/p>\n
print(repeated_list)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u6bb5\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u5d4c\u5957\u7684\u5217\u8868\u751f\u6210\u5f0f\u751f\u6210\u4e00\u4e2a3×3\u7684\u4e8c\u7ef4\u5217\u8868\uff0c\u6bcf\u4e2a\u5143\u7d20\u4e3a5\u3002<\/p>\n<\/p>\n
\u591a\u7ef4\u6570\u7ec4\u7684\u751f\u6210\u5728\u5904\u7406\u56fe\u50cf\u6570\u636e\u3001\u77e9\u9635\u8fd0\u7b97\u7b49\u573a\u666f\u4e2d\u975e\u5e38\u5e38\u89c1\u3002<\/p>\n<\/p>\n
\u603b\u7ed3<\/p>\n<\/p>\n
\u5728Python\u4e2d\u751f\u6210\u91cd\u590d\u5143\u7d20\u7684\u5217\u8868\u6709\u591a\u79cd\u65b9\u6cd5\uff0c\u5305\u62ec\u5217\u8868\u751f\u6210\u5f0f\u3001\u4e58\u6cd5\u8fd0\u7b97\u7b26\u3001for\u5faa\u73af\u3001\u4f7f\u7528NumPy\u5e93\u3001\u4f7f\u7528itertools\u6a21\u5757\u3001\u81ea\u5b9a\u4e49\u51fd\u6570\u4ee5\u53ca\u751f\u6210\u591a\u7ef4\u6570\u7ec4\u3002\u6bcf\u79cd\u65b9\u6cd5\u90fd\u6709\u5176\u72ec\u7279\u7684\u4f18\u52bf\u548c\u9002\u7528\u573a\u666f\u3002<\/p>\n<\/p>\n
\u5217\u8868\u751f\u6210\u5f0f\u662f\u4e00\u79cd\u7b80\u6d01\u800c\u9ad8\u6548\u7684\u65b9\u6cd5\uff0c\u9002\u7528\u4e8e\u751f\u6210\u5404\u79cd\u5217\u8868\uff0c\u5305\u62ec\u5305\u542b\u91cd\u590d\u5143\u7d20\u7684\u5217\u8868\u3002\u4e58\u6cd5\u8fd0\u7b97\u7b26\u662f\u6700\u4e3a\u76f4\u89c2\u548c\u7b80\u5355\u7684\u65b9\u6cd5\uff0c\u9002\u7528\u4e8e\u751f\u6210\u5305\u542b\u76f8\u540c\u5143\u7d20\u7684\u5217\u8868\u3002for\u5faa\u73af\u65b9\u6cd5\u9002\u7528\u4e8e\u66f4\u590d\u6742\u7684\u573a\u666f\uff0c\u53ef\u4ee5\u5728\u751f\u6210\u5217\u8868\u7684\u8fc7\u7a0b\u4e2d\u8fdb\u884c\u4e00\u4e9b\u590d\u6742\u7684\u903b\u8f91\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
\u4f7f\u7528NumPy\u5e93\u548citertools\u6a21\u5757\u751f\u6210\u91cd\u590d\u5143\u7d20\u7684\u5217\u8868\u5728\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\u65f6\u975e\u5e38\u9ad8\u6548\uff0c\u56e0\u4e3a\u5b83\u4eec\u63d0\u4f9b\u4e86\u8bb8\u591a\u9ad8\u6548\u7684\u6570\u7ec4\u548c\u8fed\u4ee3\u5668\u64cd\u4f5c\u51fd\u6570\u3002\u81ea\u5b9a\u4e49\u51fd\u6570\u7684\u7075\u6d3b\u6027\u548c\u53ef\u6269\u5c55\u6027\u4f7f\u5176\u5728\u5904\u7406\u590d\u6742\u9700\u6c42\u65f6\u975e\u5e38\u6709\u7528\u3002\u751f\u6210\u591a\u7ef4\u6570\u7ec4\u5728\u5904\u7406\u56fe\u50cf\u6570\u636e\u3001\u77e9\u9635\u8fd0\u7b97\u7b49\u573a\u666f\u4e2d\u975e\u5e38\u5e38\u89c1\u3002<\/p>\n<\/p>\n
\u901a\u8fc7\u638c\u63e1\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u6700\u5408\u9002\u7684\u65b9\u6cd5\u751f\u6210\u5305\u542b\u91cd\u590d\u5143\u7d20\u7684\u5217\u8868\uff0c\u63d0\u9ad8\u4ee3\u7801\u7684\u6548\u7387\u548c\u53ef\u8bfb\u6027\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u4f7f\u7528Python\u751f\u6210\u5305\u542b\u7279\u5b9a\u91cd\u590d\u5143\u7d20\u7684\u5217\u8868\uff1f<\/strong>
\u53ef\u4ee5\u4f7f\u7528\u5217\u8868\u4e58\u6cd5\u6765\u751f\u6210\u5305\u542b\u7279\u5b9a\u5143\u7d20\u7684\u91cd\u590d\u5217\u8868\u3002\u4f8b\u5982\uff0c\u8981\u751f\u6210\u4e00\u4e2a\u5305\u542b\u6570\u5b575\u7684\u5217\u8868\uff0c\u53ef\u4ee5\u4f7f\u7528[5] * 10<\/code>\uff0c\u8fd9\u5c06\u521b\u5efa\u4e00\u4e2a\u5305\u542b10\u4e2a5\u7684\u5217\u8868\uff0c\u5373[5, 5, 5, 5, 5, 5, 5, 5, 5, 5]<\/code>\u3002\u8fd9\u79cd\u65b9\u6cd5\u7b80\u5355\u4e14\u9ad8\u6548\uff0c\u9002\u7528\u4e8e\u751f\u6210\u4efb\u610f\u6570\u91cf\u7684\u91cd\u590d\u5143\u7d20\u3002<\/p>\n
\u5728Python\u4e2d\u5982\u4f55\u751f\u6210\u5305\u542b\u4e0d\u540c\u7c7b\u578b\u91cd\u590d\u5143\u7d20\u7684\u5217\u8868\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u60a8\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u4e0d\u540c\u7c7b\u578b\u7684\u91cd\u590d\u5143\u7d20\u7684\u5217\u8868\u3002\u53ef\u4ee5\u901a\u8fc7\u5b9a\u4e49\u4e00\u4e2a\u5217\u8868\u5e76\u4f7f\u7528\u4e58\u6cd5\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c[1, "apple", 3.14] * 3<\/code>\u5c06\u751f\u6210\u4e00\u4e2a\u5305\u542b\u4e09\u7ec4\u5143\u7d20\u7684\u5217\u8868\uff0c\u7ed3\u679c\u4e3a[1, "apple", 3.14, 1, "apple", 3.14, 1, "apple", 3.14]<\/code>\u3002\u8fd9\u79cd\u65b9\u6cd5\u7075\u6d3b\u591a\u6837\uff0c\u9002\u7528\u4e8e\u591a\u79cd\u573a\u666f\u3002<\/p>\n
Python\u4e2d\u6709\u6ca1\u6709\u5176\u4ed6\u65b9\u6cd5\u53ef\u4ee5\u751f\u6210\u91cd\u590d\u5143\u7d20\u7684\u5217\u8868\uff1f<\/strong>
\u9664\u4e86\u4f7f\u7528\u5217\u8868\u4e58\u6cd5\uff0c\u60a8\u8fd8\u53ef\u4ee5\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u6765\u751f\u6210\u91cd\u590d\u5143\u7d20\u7684\u5217\u8868\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528[element for _ in range(n)]<\/code>\u7684\u683c\u5f0f\uff0c\u5176\u4e2delement<\/code>\u662f\u60a8\u60f3\u8981\u91cd\u590d\u7684\u5143\u7d20\uff0cn<\/code>\u662f\u91cd\u590d\u7684\u6b21\u6570\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5728\u751f\u6210\u5217\u8868\u65f6\u8fdb\u884c\u66f4\u590d\u6742\u7684\u903b\u8f91\u5904\u7406\uff0c\u5982\u6761\u4ef6\u5224\u65ad\u6216\u8ba1\u7b97\u3002\u8fd9\u6837\u53ef\u4ee5\u5b9e\u73b0\u9ad8\u5ea6\u81ea\u5b9a\u4e49\u7684\u5217\u8868\u751f\u6210\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u4f7f\u7528\u5217\u8868\u751f\u6210\u5f0f\u3001\u4f7f\u7528\u4e58\u6cd5\u8fd0\u7b97\u7b26\u3001\u4f7f\u7528for\u5faa\u73af \u5728Python\u4e2d\u751f\u6210\u91cd\u590d\u5143\u7d20\u7684\u5217\u8868\u6709\u591a\u79cd\u65b9\u5f0f\uff0c\u5176\u4e2d\u6700\u5e38\u89c1\u7684\u65b9\u6cd5 […]","protected":false},"author":3,"featured_media":1071045,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1071039"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=1071039"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1071039\/revisions"}],"predecessor-version":[{"id":1071048,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1071039\/revisions\/1071048"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1071045"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1071039"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1071039"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1071039"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}