{"id":1102360,"date":"2025-01-08T15:59:03","date_gmt":"2025-01-08T07:59:03","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1102360.html"},"modified":"2025-01-08T15:59:05","modified_gmt":"2025-01-08T07:59:05","slug":"python%e5%a6%82%e4%bd%95%e5%b0%86%e5%ad%97%e6%af%8d%e8%bd%ac%e6%8d%a2%e5%ad%97%e7%ac%a6%e4%b8%b2-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1102360.html","title":{"rendered":"python\u5982\u4f55\u5c06\u5b57\u6bcd\u8f6c\u6362\u5b57\u7b26\u4e32"},"content":{"rendered":"

\"python\u5982\u4f55\u5c06\u5b57\u6bcd\u8f6c\u6362\u5b57\u7b26\u4e32\"<\/p>\n

\u5728 Python \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u5c06\u5b57\u6bcd\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002<\/strong> \u5e38\u89c1\u7684\u65b9\u6cd5\u6709\u4f7f\u7528\u5185\u7f6e\u7684 str()<\/code> \u51fd\u6570\u3001\u4f7f\u7528\u5b57\u7b26\u4e32\u8fde\u63a5\u8fd0\u7b97\u7b26\u3001\u4f7f\u7528 join()<\/code> \u65b9\u6cd5\u4ee5\u53ca\u901a\u8fc7\u683c\u5f0f\u5316\u5b57\u7b26\u4e32<\/strong>\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u5e76\u5bf9\u5176\u4e2d\u4e00\u79cd\u65b9\u6cd5\u8fdb\u884c\u8be6\u7ec6\u63cf\u8ff0\u3002<\/p>\n<\/p>\n

\u4f7f\u7528\u5185\u7f6e\u7684 str()<\/code> \u51fd\u6570\u662f\u6700\u7b80\u5355\u7684\u65b9\u5f0f\u4e4b\u4e00\uff0c\u5b83\u53ef\u4ee5\u5c06\u4efb\u4f55\u6570\u636e\u7c7b\u578b\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002\u6bd4\u5982\uff0c\u5c06\u5b57\u6bcd 'a' \u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff0c\u53ea\u9700\u8981\u4f7f\u7528 str('a')<\/code>\u3002\u8fd9\u5728\u5904\u7406\u5355\u4e2a\u5b57\u7b26\u65f6\u975e\u5e38\u65b9\u4fbf\uff0c\u4f46\u5982\u679c\u9700\u8981\u5904\u7406\u591a\u4e2a\u5b57\u7b26\u6216\u66f4\u590d\u6742\u7684\u60c5\u51b5\uff0c\u5176\u4ed6\u65b9\u6cd5\u53ef\u80fd\u66f4\u5408\u9002\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528\u5185\u7f6e\u7684 str()<\/code> \u51fd\u6570<\/p>\n<\/p>\n

str()<\/code> \u51fd\u6570\u662f Python \u5185\u7f6e\u7684\u4e00\u4e2a\u51fd\u6570\uff0c\u53ef\u4ee5\u5c06\u5404\u79cd\u6570\u636e\u7c7b\u578b\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002\u5bf9\u4e8e\u5355\u4e2a\u5b57\u6bcd\u6765\u8bf4\uff0c\u8fd9\u79cd\u65b9\u6cd5\u975e\u5e38\u76f4\u89c2\u548c\u7b80\u5355\u3002<\/p>\n<\/p>\n

letter = 'a'<\/p>\n
string = str(letter)<\/p>\n
print(string)  # \u8f93\u51fa: 'a'<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u5728\u5904\u7406\u5355\u4e2a\u5b57\u7b26\u65f6\u975e\u5e38\u6709\u6548\uff0c\u4f46\u5982\u679c\u9700\u8981\u5c06\u591a\u4e2a\u5b57\u6bcd\u7ec4\u6210\u7684\u5217\u8868\u6216\u5143\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff0c\u53ef\u80fd\u9700\u8981\u4f7f\u7528\u5176\u4ed6\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528\u5b57\u7b26\u4e32\u8fde\u63a5\u8fd0\u7b97\u7b26<\/p>\n<\/p>\n
\u5b57\u7b26\u4e32\u8fde\u63a5\u8fd0\u7b97\u7b26 +<\/code> \u53ef\u4ee5\u5c06\u591a\u4e2a\u5b57\u7b26\u4e32\u8fde\u63a5\u6210\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\u3002\u5bf9\u4e8e\u591a\u4e2a\u5b57\u6bcd\uff0c\u53ef\u4ee5\u5c06\u5b83\u4eec\u9010\u4e2a\u8fde\u63a5\u8d77\u6765\u3002<\/p>\n<\/p>\n
letters = ['a', 'b', 'c']<\/p>\n
string = ''<\/p>\n
for letter in letters:<\/p>\n
    string += letter<\/p>\n
print(string)  # \u8f93\u51fa: 'abc'<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u9002\u7528\u4e8e\u9700\u8981\u5c06\u591a\u4e2a\u5b57\u6bcd\u8fde\u63a5\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\u7684\u60c5\u51b5\uff0c\u4f46\u5982\u679c\u5b57\u6bcd\u6570\u91cf\u8f83\u591a\uff0c\u6548\u7387\u53ef\u80fd\u4e0d\u5982\u5176\u4ed6\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528 join()<\/code> \u65b9\u6cd5<\/p>\n<\/p>\n
join()<\/code> \u65b9\u6cd5\u662f\u5c06\u53ef\u8fed\u4ee3\u5bf9\u8c61\uff08\u5982\u5217\u8868\u3001\u5143\u7ec4\u7b49\uff09\u4e2d\u7684\u5143\u7d20\u8fde\u63a5\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\u7684\u9ad8\u6548\u65b9\u6cd5\u3002\u5b83\u4e0d\u4ec5\u53ef\u4ee5\u7528\u4e8e\u5b57\u6bcd\u8f6c\u6362\uff0c\u8fd8\u53ef\u4ee5\u7528\u4e8e\u66f4\u590d\u6742\u7684\u5b57\u7b26\u4e32\u7ec4\u5408\u3002<\/p>\n<\/p>\n
letters = ['a', 'b', 'c']<\/p>\n
string = ''.join(letters)<\/p>\n
print(string)  # \u8f93\u51fa: 'abc'<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u7684\u4f18\u52bf\u5728\u4e8e\u6548\u7387\u9ad8\uff0c\u4ee3\u7801\u7b80\u6d01\uff0c\u9002\u7528\u4e8e\u9700\u8981\u5c06\u591a\u4e2a\u5b57\u6bcd\u6216\u5b57\u7b26\u4e32\u5143\u7d20\u8fde\u63a5\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\u7684\u60c5\u51b5\u3002<\/p>\n<\/p>\n
\u56db\u3001\u901a\u8fc7\u683c\u5f0f\u5316\u5b57\u7b26\u4e32<\/p>\n<\/p>\n
Python \u63d0\u4f9b\u4e86\u591a\u79cd\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u65b9\u6cd5\uff0c\u5982 %<\/code> \u64cd\u4f5c\u7b26\u3001format()<\/code> \u65b9\u6cd5\u548c f-string\uff08Python 3.6 \u53ca\u4ee5\u4e0a\u7248\u672c\uff09\u3002\u8fd9\u4e9b\u65b9\u6cd5\u4e0d\u4ec5\u53ef\u4ee5\u7528\u4e8e\u5355\u4e2a\u5b57\u6bcd\u8f6c\u6362\uff0c\u8fd8\u53ef\u4ee5\u7528\u4e8e\u66f4\u590d\u6742\u7684\u5b57\u7b26\u4e32\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
letter = 'a'<\/p>\n
string = '{}'.format(letter)<\/p>\n
print(string)  # \u8f93\u51fa: 'a'<\/p>\n
\u6216\u8005\u4f7f\u7528 f-string\uff08Python 3.6 \u53ca\u4ee5\u4e0a\u7248\u672c\uff09<\/strong><\/h2>\n
string = f'{letter}'<\/p>\n
print(string)  # \u8f93\u51fa: 'a'<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u63a5\u4e0b\u6765\uff0c\u5c06\u8be6\u7ec6\u63cf\u8ff0\u4f7f\u7528 join()<\/code> \u65b9\u6cd5\u7684\u4f18\u52bf\u548c\u5177\u4f53\u64cd\u4f5c\u6b65\u9aa4\uff1a<\/strong><\/p>\n<\/p>\n
\u4f7f\u7528 join()<\/code> \u65b9\u6cd5\u7684\u4f18\u52bf\u5728\u4e8e\u6548\u7387\u9ad8\u3001\u4ee3\u7801\u7b80\u6d01\u3002join()<\/code> \u65b9\u6cd5\u662f\u5b57\u7b26\u4e32\u7684\u4e00\u4e2a\u65b9\u6cd5\uff0c\u5b83\u9700\u8981\u4e00\u4e2a\u53ef\u8fed\u4ee3\u5bf9\u8c61\uff08\u5982\u5217\u8868\u3001\u5143\u7ec4\u7b49\uff09\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u5728\u6bcf\u4e2a\u5143\u7d20\u4e4b\u95f4\u63d2\u5165\u8c03\u7528\u5b83\u7684\u5b57\u7b26\u4e32\u3002\u5bf9\u4e8e\u5c06\u591a\u4e2a\u5b57\u6bcd\u8fde\u63a5\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\u7684\u64cd\u4f5c\uff0c\u8fd9\u79cd\u65b9\u6cd5\u975e\u5e38\u9ad8\u6548\u3002<\/p>\n<\/p>\n
\u9996\u5148\uff0c\u9700\u8981\u5c06\u5b57\u6bcd\u5b58\u50a8\u5728\u4e00\u4e2a\u53ef\u8fed\u4ee3\u5bf9\u8c61\u4e2d\uff0c\u5982\u5217\u8868\uff1a<\/p>\n<\/p>\n
letters = ['a', 'b', 'c']<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u7136\u540e\uff0c\u8c03\u7528 join()<\/code> \u65b9\u6cd5\uff0c\u5c06\u7a7a\u5b57\u7b26\u4e32 ''<\/code> \u4f5c\u4e3a\u8fde\u63a5\u7b26\uff1a<\/p>\n<\/p>\n
string = ''.join(letters)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u6bb5\u4ee3\u7801\u7684\u610f\u601d\u662f\uff0c\u5c06\u5217\u8868 letters<\/code> \u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\uff08\u5373\u5b57\u6bcd\uff09\u8fde\u63a5\u8d77\u6765\uff0c\u4e2d\u95f4\u4e0d\u63d2\u5165\u4efb\u4f55\u5b57\u7b26\uff0c\u6700\u7ec8\u5f97\u5230\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32 string<\/code>\u3002<\/p>\n<\/p>\n
\u5b8c\u6574\u7684\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
letters = ['a', 'b', 'c']<\/p>\n
string = ''.join(letters)<\/p>\n
print(string)  # \u8f93\u51fa: 'abc'<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u8fd9\u79cd\u65b9\u6cd5\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u5c06\u591a\u4e2a\u5b57\u6bcd\u8fde\u63a5\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u4e14\u4e0d\u9700\u8981\u624b\u52a8\u5904\u7406\u6bcf\u4e2a\u5b57\u6bcd\u7684\u8fde\u63a5\u64cd\u4f5c\u3002\u76f8\u6bd4\u4e8e\u4f7f\u7528 +<\/code> \u8fd0\u7b97\u7b26\u9010\u4e2a\u8fde\u63a5\u5b57\u6bcd\uff0cjoin()<\/code> \u65b9\u6cd5\u7684\u6548\u7387\u66f4\u9ad8\uff0c\u7279\u522b\u662f\u5728\u5904\u7406\u5927\u91cf\u5b57\u6bcd\u65f6\uff0c\u6027\u80fd\u4f18\u52bf\u66f4\u52a0\u660e\u663e\u3002<\/p>\n<\/p>\n
\u603b\u7ed3<\/strong>\uff0c\u5728 Python \u4e2d\uff0c\u5c06\u5b57\u6bcd\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5305\u62ec\u4f7f\u7528 str()<\/code> \u51fd\u6570\u3001\u5b57\u7b26\u4e32\u8fde\u63a5\u8fd0\u7b97\u7b26\u3001join()<\/code> \u65b9\u6cd5\u548c\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u65b9\u6cd5\u3002\u5176\u4e2d\uff0cjoin()<\/code> \u65b9\u6cd5\u7531\u4e8e\u5176\u9ad8\u6548\u548c\u7b80\u6d01\u7684\u7279\u70b9\uff0c\u5c24\u5176\u9002\u5408\u5904\u7406\u591a\u4e2a\u5b57\u6bcd\u7684\u8fde\u63a5\u64cd\u4f5c\u3002\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u6267\u884c\u6548\u7387\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Python\u4e2d\u5c06\u5b57\u6bcd\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u5b57\u6bcd\u672c\u8eab\u5c31\u662f\u5b57\u7b26\u4e32\u7684\u4e00\u90e8\u5206\uff0c\u56e0\u6b64\u76f4\u63a5\u4f7f\u7528\u5355\u5f15\u53f7\u6216\u53cc\u5f15\u53f7\u5c06\u5b57\u6bcd\u62ec\u8d77\u6765\u5373\u53ef\u5c06\u5176\u89c6\u4e3a\u5b57\u7b26\u4e32\u3002\u4f8b\u5982\uff0cletter = 'a'<\/code> \u6216 letter = "b"<\/code>\u3002\u8fd9\u4e24\u79cd\u65b9\u5f0f\u90fd\u5c06\u5b57\u6bcd\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u7c7b\u578b\u3002<\/p>\n
Python\u4e2d\u662f\u5426\u53ef\u4ee5\u5c06\u591a\u4e2a\u5b57\u6bcd\u7ec4\u5408\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\uff1f<\/strong>
\u662f\u7684\uff0c\u53ef\u4ee5\u4f7f\u7528\u52a0\u53f7\uff08+<\/code>\uff09\u5c06\u591a\u4e2a\u5b57\u6bcd\u7ec4\u5408\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\u3002\u4f8b\u5982\uff0cstr_combined = 'a' + 'b' + 'c'<\/code> \u5c06\u751f\u6210\u5b57\u7b26\u4e32 'abc'<\/code>\u3002\u53e6\u5916\uff0c\u4f7f\u7528\u5b57\u7b26\u4e32\u8fde\u63a5\u7684\u65b9\u6cd5\u5982 join()<\/code> \u4e5f\u53ef\u4ee5\u5b9e\u73b0\uff0c\u5982 ''.join(['a', 'b', 'c'])<\/code> \u4e5f\u4f1a\u5f97\u5230\u76f8\u540c\u7684\u7ed3\u679c\u3002<\/p>\n
\u5982\u4f55\u68c0\u67e5\u4e00\u4e2a\u5b57\u6bcd\u662f\u5426\u5728\u5b57\u7b26\u4e32\u4e2d\uff1f<\/strong>
\u53ef\u4ee5\u4f7f\u7528 in<\/code> \u5173\u952e\u5b57\u6765\u68c0\u67e5\u5b57\u6bcd\u662f\u5426\u5728\u5b57\u7b26\u4e32\u4e2d\u3002\u4f8b\u5982\uff0cif 'a' in 'abc':<\/code> \u8fd9\u6bb5\u4ee3\u7801\u4f1a\u8fd4\u56de True<\/code>\uff0c\u56e0\u4e3a\u5b57\u6bcd 'a'<\/code> \u786e\u5b9e\u5b58\u5728\u4e8e\u5b57\u7b26\u4e32 'abc'<\/code> \u4e2d\u3002\u8fd9\u79cd\u65b9\u5f0f\u7b80\u5355\u660e\u4e86\uff0c\u975e\u5e38\u9002\u5408\u5feb\u901f\u9a8c\u8bc1\u5b57\u6bcd\u7684\u5b58\u5728\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728 Python \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u5c06\u5b57\u6bcd\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002 \u5e38\u89c1\u7684\u65b9\u6cd5\u6709\u4f7f\u7528\u5185\u7f6e\u7684 str() \u51fd\u6570\u3001\u4f7f\u7528\u5b57\u7b26 […]","protected":false},"author":3,"featured_media":1102367,"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\/1102360"}],"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=1102360"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1102360\/revisions"}],"predecessor-version":[{"id":1102369,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1102360\/revisions\/1102369"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1102367"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1102360"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1102360"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1102360"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}