{"id":1019262,"date":"2024-12-27T12:55:32","date_gmt":"2024-12-27T04:55:32","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1019262.html"},"modified":"2024-12-27T12:55:50","modified_gmt":"2024-12-27T04:55:50","slug":"python-%e5%a6%82%e4%bd%95%e7%bb%99%e5%88%97%e8%a1%a8%e6%8d%a2%e8%a1%8c","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1019262.html","title":{"rendered":"python \u5982\u4f55\u7ed9\u5217\u8868\u6362\u884c"},"content":{"rendered":"

\"python<\/p>\n

\u5728Python\u4e2d\uff0c\u7ed9\u5217\u8868\u6362\u884c\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u5b9e\u73b0<\/strong>\uff0c\u6bd4\u5982\u4f7f\u7528'\\n'.join()<\/code>\u65b9\u6cd5\u3001for\u5faa\u73af\u904d\u5386\u6253\u5370\u4ee5\u53calist comprehension\u7b49\u65b9\u6cd5\u3002\u6700\u5e38\u89c1\u7684\u662f\u4f7f\u7528'\\n'.join(map(str, list))<\/code>\u6765\u5c06\u5217\u8868\u5143\u7d20\u8f6c\u6362\u6210\u5b57\u7b26\u4e32\u5e76\u6362\u884c\u8f93\u51fa\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u5e76\u63d0\u4f9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528'\\n'.join()<\/code>\u65b9\u6cd5<\/p>\n<\/p>\n

\u8fd9\u79cd\u65b9\u6cd5\u9002\u7528\u4e8e\u5217\u8868\u4e2d\u7684\u5143\u7d20\u90fd\u662f\u5b57\u7b26\u4e32\u7c7b\u578b\u6216\u8005\u53ef\u4ee5\u901a\u8fc7str()<\/code>\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u7684\u60c5\u51b5\u3002\u901a\u8fc7join()<\/code>\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5c06\u5217\u8868\u4e2d\u7684\u5143\u7d20\u8fde\u63a5\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u5e76\u5728\u6bcf\u4e2a\u5143\u7d20\u4e4b\u95f4\u6dfb\u52a0\u6362\u884c\u7b26\\n<\/code>\u3002\u8fd9\u79cd\u65b9\u6cd5\u7b80\u6d01\u9ad8\u6548\uff0c\u9002\u5408\u5904\u7406\u7b80\u5355\u7684\u5b57\u7b26\u4e32\u5217\u8868\u3002<\/p>\n<\/p>\n

my_list = ['apple', 'banana', 'cherry']<\/p>\n
output = '\\n'.join(my_list)<\/p>\n
print(output)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5217\u8868my_list<\/code>\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u90fd\u88ab\u6362\u884c\u6253\u5370\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cjoin()<\/code>\u65b9\u6cd5\u8981\u6c42\u5217\u8868\u4e2d\u7684\u5143\u7d20\u5fc5\u987b\u662f\u5b57\u7b26\u4e32\u7c7b\u578b\uff0c\u56e0\u6b64\u5982\u679c\u5217\u8868\u4e2d\u5305\u542b\u5176\u4ed6\u7c7b\u578b\u7684\u5143\u7d20\uff0c\u9700\u8981\u5148\u901a\u8fc7map(str, my_list)<\/code>\u5c06\u5176\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528for\u5faa\u73af\u904d\u5386\u6253\u5370<\/p>\n<\/p>\n
\u5982\u679c\u5217\u8868\u4e2d\u5305\u542b\u4e0d\u540c\u7c7b\u578b\u7684\u5143\u7d20\uff0c\u6216\u8005\u9700\u8981\u5728\u8f93\u51fa\u65f6\u5bf9\u6bcf\u4e2a\u5143\u7d20\u8fdb\u884c\u8fdb\u4e00\u6b65\u5904\u7406\uff0c\u53ef\u4ee5\u4f7f\u7528for\u5faa\u73af\u9010\u4e2a\u6253\u5370\u6bcf\u4e2a\u5143\u7d20\uff0c\u5e76\u5728\u6bcf\u4e2a\u5143\u7d20\u540e\u6dfb\u52a0\u6362\u884c\u7b26\u3002\u8fd9\u79cd\u65b9\u6cd5\u7075\u6d3b\u6027\u66f4\u9ad8\uff0c\u53ef\u4ee5\u6839\u636e\u9700\u8981\u5bf9\u6bcf\u4e2a\u5143\u7d20\u8fdb\u884c\u5355\u72ec\u7684\u5904\u7406\u3002<\/p>\n<\/p>\n
my_list = [1, 2.5, 'apple', True]<\/p>\n
for item in my_list:<\/p>\n
    print(item)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5217\u8868my_list<\/code>\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u90fd\u88ab\u9010\u884c\u6253\u5370\u3002\u4f7f\u7528for\u5faa\u73af\u904d\u5386\u5217\u8868\u53ef\u4ee5\u66f4\u65b9\u4fbf\u5730\u5bf9\u6bcf\u4e2a\u5143\u7d20\u8fdb\u884c\u5904\u7406\uff0c\u6bd4\u5982\u5728\u6253\u5370\u4e4b\u524d\u5bf9\u5143\u7d20\u8fdb\u884c\u683c\u5f0f\u5316\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528\u5217\u8868\u751f\u6210\u5f0f\uff08list comprehension\uff09<\/p>\n<\/p>\n
\u5217\u8868\u751f\u6210\u5f0f\u662f\u4e00\u79cd\u7b80\u6d01\u7684\u8bed\u6cd5\uff0c\u53ef\u4ee5\u7528\u4e8e\u751f\u6210\u65b0\u7684\u5217\u8868\u3002\u901a\u8fc7\u7ed3\u5408join()<\/code>\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5217\u8868\u5143\u7d20\u7684\u6362\u884c\u6253\u5370\u3002\u867d\u7136\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u5982\u76f4\u63a5\u4f7f\u7528join()<\/code>\u6216for\u5faa\u73af\u7075\u6d3b\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u7b80\u6d01\u6027\u3002<\/p>\n<\/p>\n
my_list = ['apple', 'banana', 'cherry']<\/p>\n
output = '\\n'.join([str(item) for item in my_list])<\/p>\n
print(output)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5217\u8868\u751f\u6210\u5f0f[str(item) for item in my_list]<\/code>\u521b\u5efa\u4e86\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\u5217\u8868\uff0c\u7136\u540e\u901a\u8fc7join()<\/code>\u65b9\u6cd5\u5c06\u5176\u6362\u884c\u6253\u5370\u3002<\/p>\n<\/p>\n
\u56db\u3001\u4f7f\u7528print()<\/code>\u51fd\u6570\u7684sep<\/code>\u53c2\u6570<\/p>\n<\/p>\n
print()<\/code>\u51fd\u6570\u7684sep<\/code>\u53c2\u6570\u53ef\u4ee5\u7528\u6765\u6307\u5b9a\u591a\u4e2a\u503c\u4e4b\u95f4\u7684\u5206\u9694\u7b26\u3002\u901a\u8fc7\u4f20\u9012\u6362\u884c\u7b26\\n<\/code>\u7ed9sep<\/code>\u53c2\u6570\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5217\u8868\u5143\u7d20\u7684\u6362\u884c\u6253\u5370\u3002\u8fd9\u79cd\u65b9\u6cd5\u9002\u7528\u4e8e\u7b80\u5355\u7684\u5217\u8868\u6253\u5370\uff0c\u4e0d\u9700\u8981\u989d\u5916\u7684\u5b57\u7b26\u4e32\u8fde\u63a5\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
my_list = ['apple', 'banana', 'cherry']<\/p>\n
print(*my_list, sep='\\n')<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c*my_list<\/code>\u8868\u793a\u5c06\u5217\u8868\u4e2d\u7684\u5143\u7d20\u89e3\u5305\u4e3a\u72ec\u7acb\u7684\u53c2\u6570\uff0csep='\\n'<\/code>\u5219\u6307\u5b9a\u5728\u6bcf\u4e2a\u5143\u7d20\u4e4b\u95f4\u6dfb\u52a0\u6362\u884c\u7b26\u3002<\/p>\n<\/p>\n
\u4e94\u3001\u4f7f\u7528pprint<\/code>\u6a21\u5757<\/p>\n<\/p>\n
Python\u7684pprint<\/code>\u6a21\u5757\u63d0\u4f9b\u4e86\u4e00\u4e2apprint()<\/code>\u51fd\u6570\uff0c\u53ef\u4ee5\u7528\u4e8e\u683c\u5f0f\u5316\u8f93\u51fa\u6570\u636e\u7ed3\u6784\uff0c\u5c24\u5176\u9002\u7528\u4e8e\u590d\u6742\u7684\u5d4c\u5957\u7ed3\u6784\u3002\u867d\u7136pprint<\/code>\u4e3b\u8981\u7528\u4e8e\u6253\u5370\u590d\u6742\u7684\u6570\u636e\u7ed3\u6784\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u4e5f\u53ef\u4ee5\u7528\u4e8e\u7b80\u5355\u7684\u5217\u8868\u6362\u884c\u6253\u5370\u3002<\/p>\n<\/p>\n
import pprint<\/p>\n
my_list = ['apple', 'banana', 'cherry']<\/p>\n
pprint.pprint(my_list, width=1)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cpprint.pprint()<\/code>\u51fd\u6570\u4f1a\u4ee5\u6307\u5b9a\u7684\u5bbd\u5ea6\u6253\u5370\u5217\u8868\uff0c\u4ece\u800c\u5b9e\u73b0\u6362\u884c\u6548\u679c\u3002<\/p>\n<\/p>\n
\u603b\u7ed3<\/p>\n<\/p>\n
\u5728Python\u4e2d\u7ed9\u5217\u8868\u6362\u884c\u7684\u65b9\u6cd5\u591a\u79cd\u591a\u6837\uff0c\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u53d6\u51b3\u4e8e\u5177\u4f53\u7684\u9700\u6c42\u548c\u5217\u8868\u7684\u590d\u6742\u7a0b\u5ea6<\/strong>\u3002\u4f7f\u7528'\\n'.join()<\/code>\u65b9\u6cd5\u9002\u5408\u7b80\u5355\u7684\u5b57\u7b26\u4e32\u5217\u8868\uff0c\u800cfor\u5faa\u73af\u63d0\u4f9b\u4e86\u66f4\u9ad8\u7684\u7075\u6d3b\u6027\u3002\u5217\u8868\u751f\u6210\u5f0f\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7b80\u6d01\u6027\uff0c\u800cprint()<\/code>\u51fd\u6570\u7684sep<\/code>\u53c2\u6570\u5219\u662f\u4e00\u4e2a\u5feb\u6377\u7684\u89e3\u51b3\u65b9\u6848\u3002\u5bf9\u4e8e\u590d\u6742\u7684\u6570\u636e\u7ed3\u6784\uff0cpprint<\/code>\u6a21\u5757\u662f\u4e00\u4e2a\u6709\u529b\u7684\u5de5\u5177\u3002\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u9009\u62e9\u9002\u5408\u7684\u65b9\u6cd5\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u6548\u7387\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5728Python\u4e2d\uff0c\u5982\u4f55\u6253\u5370\u5217\u8868\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u5e76\u6362\u884c\uff1f<\/strong>
\u53ef\u4ee5\u4f7f\u7528for\u5faa\u73af\u904d\u5386\u5217\u8868\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\uff0c\u5e76\u5728print\u51fd\u6570\u4e2d\u81ea\u52a8\u6dfb\u52a0\u6362\u884c\u7b26\u3002\u8fd9\u79cd\u65b9\u6cd5\u4f7f\u5f97\u6bcf\u4e2a\u5143\u7d20\u90fd\u5728\u5355\u72ec\u7684\u4e00\u884c\u4e0a\u663e\u793a\u3002\u4f8b\u5982\uff1a  <\/p>\n
my_list = [1, 2, 3, 4, 5]  \nfor item in my_list:  \n    print(item)  \n<\/code><\/pre>\n
\u6709\u6ca1\u6709\u65b9\u6cd5\u53ef\u4ee5\u5c06\u5217\u8868\u8f6c\u6362\u4e3a\u6362\u884c\u7684\u5b57\u7b26\u4e32\uff1f<\/strong>
\u662f\u7684\uff0c\u53ef\u4ee5\u4f7f\u7528join()<\/code>\u65b9\u6cd5\u5c06\u5217\u8868\u4e2d\u7684\u5143\u7d20\u8fde\u63a5\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u5e76\u5728\u5143\u7d20\u4e4b\u95f4\u6dfb\u52a0\u6362\u884c\u7b26\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a  <\/p>\n
my_list = ['apple', 'banana', 'cherry']  \nresult = '\\n'.join(my_list)  \nprint(result)  \n<\/code><\/pre>\n
\u8fd9\u6837\u4f1a\u751f\u6210\u4e00\u4e2a\u5305\u542b\u6bcf\u4e2a\u6c34\u679c\u540d\u79f0\u7684\u5b57\u7b26\u4e32\uff0c\u6bcf\u4e2a\u540d\u79f0\u5360\u636e\u4e00\u884c\u3002<\/p>\n
\u5982\u4f55\u5728\u8f93\u51fa\u5217\u8868\u65f6\u81ea\u5b9a\u4e49\u6362\u884c\u7b26\uff1f<\/strong>
\u53ef\u4ee5\u5728\u4f7f\u7528join()<\/code>\u65b9\u6cd5\u65f6\uff0c\u81ea\u5b9a\u4e49\u6362\u884c\u7b26\u3002\u4f8b\u5982\uff0c\u4f7f\u7528"\\r\\n"\uff08Windows\u6362\u884c\u7b26\uff09\u6216\u5176\u4ed6\u5b57\u7b26\u4f5c\u4e3a\u5206\u9694\u7b26\u3002\u793a\u4f8b\u5982\u4e0b\uff1a  <\/p>\n
my_list = ['Python', 'Java', 'C++']  \nresult = '\\r\\n'.join(my_list)  \nprint(result)  \n<\/code><\/pre>\n
\u8fd9\u5c06\u4ea7\u751f\u4e0d\u540c\u4e8e\u9ed8\u8ba4\u6362\u884c\u7b26\u7684\u6548\u679c\uff0c\u9002\u5408\u7279\u5b9a\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u7ed9\u5217\u8868\u6362\u884c\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u5b9e\u73b0\uff0c\u6bd4\u5982\u4f7f\u7528'\\n'.join()\u65b9\u6cd5\u3001for\u5faa […]","protected":false},"author":3,"featured_media":1019291,"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\/1019262"}],"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=1019262"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1019262\/revisions"}],"predecessor-version":[{"id":1019293,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1019262\/revisions\/1019293"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1019291"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1019262"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1019262"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1019262"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}