{"id":1102448,"date":"2025-01-08T16:00:01","date_gmt":"2025-01-08T08:00:01","guid":{"rendered":""},"modified":"2025-01-08T16:00:05","modified_gmt":"2025-01-08T08:00:05","slug":"python%e5%a6%82%e4%bd%95%e5%b0%86%e6%95%b0%e5%ad%97%e5%8f%98%e6%88%90%e5%ad%97%e7%ac%a6%e4%b8%b2-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1102448.html","title":{"rendered":"python\u5982\u4f55\u5c06\u6570\u5b57\u53d8\u6210\u5b57\u7b26\u4e32"},"content":{"rendered":"

\"python\u5982\u4f55\u5c06\u6570\u5b57\u53d8\u6210\u5b57\u7b26\u4e32\"<\/p>\n

\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528str()\u51fd\u6570\u3001\u4f7f\u7528\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u3001\u4f7f\u7528repr()\u51fd\u6570\u3001\u4ee5\u53ca\u901a\u8fc7\u8fde\u63a5\u7a7a\u5b57\u7b26\u4e32\u7b49\u65b9\u6cd5\u5c06\u6570\u5b57\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002<\/strong> \u5176\u4e2d\uff0cstr()\u51fd\u6570<\/strong>\u662f\u6700\u5e38\u7528\u7684\u65b9\u6cd5\uff0c\u5b83\u80fd\u591f\u5c06\u4efb\u4f55\u6570\u636e\u7c7b\u578b\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff0c\u7b80\u5355\u6613\u7528\u3002\u4e0b\u9762\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u5e76\u4e3e\u4f8b\u8bf4\u660e\u5982\u4f55\u5728\u5b9e\u9645\u7f16\u7a0b\u4e2d\u5e94\u7528\u5b83\u4eec\u3002<\/p>\n<\/p>\n

\u4e00\u3001str()\u51fd\u6570<\/p>\n<\/p>\n

\u5728Python\u4e2d\uff0cstr()\u51fd\u6570\u662f\u6700\u5e38\u7528\u548c\u6700\u7b80\u5355\u7684\u65b9\u6cd5\u4e4b\u4e00\uff0c\u7528\u4e8e\u5c06\u6570\u5b57\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002str()\u51fd\u6570\u53ef\u4ee5\u5c06\u6574\u6570\u3001\u6d6e\u70b9\u6570\u4ee5\u53ca\u5176\u4ed6\u6570\u636e\u7c7b\u578b\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n

number = 123<\/p>\n
string_number = str(number)<\/p>\n
print(string_number)  # \u8f93\u51fa: '123'<\/p>\n
float_number = 123.45<\/p>\n
string_float = str(float_number)<\/p>\n
print(string_float)  # \u8f93\u51fa: '123.45'<\/p>\n
<\/code><\/pre>\n<\/p>\n
str()\u51fd\u6570\u7684\u4f18\u70b9\u5728\u4e8e\u5176\u7b80\u5355\u6613\u7528\uff0c\u65e0\u9700\u590d\u6742\u7684\u8bed\u6cd5\u6216\u8bbe\u7f6e\u3002\u65e0\u8bba\u662f\u6574\u6570\u8fd8\u662f\u6d6e\u70b9\u6570\uff0cstr()\u90fd\u80fd\u8f7b\u677e\u5b8c\u6210\u8f6c\u6362\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528\u683c\u5f0f\u5316\u5b57\u7b26\u4e32<\/p>\n<\/p>\n
\u9664\u4e86\u4f7f\u7528str()\u51fd\u6570\uff0cPython\u4e2d\u7684\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u65b9\u6cd5\u4e5f\u80fd\u5b9e\u73b0\u6570\u5b57\u5230\u5b57\u7b26\u4e32\u7684\u8f6c\u6362\u3002Python3.6\u53ca\u4ee5\u540e\u7684\u7248\u672c\u4e2d\u5f15\u5165\u4e86f-string\uff0c\u5b83\u662f\u4e00\u79cd\u65b0\u7684\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u65b9\u6cd5\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n
number = 123<\/p>\n
string_number = f'{number}'<\/p>\n
print(string_number)  # \u8f93\u51fa: '123'<\/p>\n
float_number = 123.45<\/p>\n
string_float = f'{float_number}'<\/p>\n
print(string_float)  # \u8f93\u51fa: '123.45'<\/p>\n
<\/code><\/pre>\n<\/p>\n
f-string\u4e0d\u4ec5\u7b80\u6d01\uff0c\u800c\u4e14\u652f\u6301\u5d4c\u5165\u8868\u8fbe\u5f0f\uff0c\u80fd\u591f\u5904\u7406\u66f4\u4e3a\u590d\u6742\u7684\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u9700\u6c42\u3002<\/p>\n<\/p>\n
\u4e09\u3001repr()\u51fd\u6570<\/p>\n<\/p>\n
repr()\u51fd\u6570\u4e0estr()\u51fd\u6570\u7c7b\u4f3c\uff0c\u4e5f\u80fd\u5c06\u6570\u5b57\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff0c\u4f46\u5176\u4e3b\u8981\u7528\u9014\u662f\u751f\u6210\u5b57\u7b26\u4e32\u8868\u793a\uff0c\u4fbf\u4e8e\u8c03\u8bd5\u548c\u67e5\u770b\u3002repr()\u8fd4\u56de\u7684\u5b57\u7b26\u4e32\u901a\u5e38\u5305\u542b\u66f4\u591a\u7684\u4fe1\u606f\uff0c\u4f8b\u5982\u5bf9\u8c61\u7c7b\u578b\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n
number = 123<\/p>\n
string_number = repr(number)<\/p>\n
print(string_number)  # \u8f93\u51fa: '123'<\/p>\n
float_number = 123.45<\/p>\n
string_float = repr(float_number)<\/p>\n
print(string_float)  # \u8f93\u51fa: '123.45'<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u867d\u7136repr()\u51fd\u6570\u7684\u8f93\u51fa\u4e0estr()\u51fd\u6570\u76f8\u4f3c\uff0c\u4f46\u5728\u8c03\u8bd5\u65f6\uff0crepr()\u901a\u5e38\u66f4\u52a0\u6709\u7528\uff0c\u56e0\u4e3a\u5b83\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u4e0a\u4e0b\u6587\u4fe1\u606f\u3002<\/p>\n<\/p>\n
\u56db\u3001\u901a\u8fc7\u8fde\u63a5\u7a7a\u5b57\u7b26\u4e32<\/p>\n<\/p>\n
\u53e6\u4e00\u79cd\u5c06\u6570\u5b57\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u7684\u65b9\u6cd5\u662f\u901a\u8fc7\u8fde\u63a5\u7a7a\u5b57\u7b26\u4e32\u3002\u8fd9\u79cd\u65b9\u6cd5\u867d\u7136\u4e0d\u5982str()\u51fd\u6570\u76f4\u63a5\uff0c\u4f46\u4e5f\u80fd\u8fbe\u5230\u540c\u6837\u7684\u6548\u679c\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n
number = 123<\/p>\n
string_number = '' + str(number)<\/p>\n
print(string_number)  # \u8f93\u51fa: '123'<\/p>\n
float_number = 123.45<\/p>\n
string_float = '' + str(float_number)<\/p>\n
print(string_float)  # \u8f93\u51fa: '123.45'<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u7684\u4f18\u70b9\u5728\u4e8e\u7b80\u6d01\u660e\u4e86\uff0c\u4f46\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0cstr()\u51fd\u6570\u66f4\u4e3a\u5e38\u7528\u3002<\/p>\n<\/p>\n
\u4e94\u3001\u5176\u4ed6\u65b9\u6cd5\u548c\u6ce8\u610f\u4e8b\u9879<\/p>\n<\/p>\n
\u9664\u4e86\u4e0a\u8ff0\u65b9\u6cd5\uff0cPython\u8fd8\u6709\u5176\u4ed6\u4e00\u4e9b\u5c06\u6570\u5b57\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u7684\u65b9\u6cd5\u3002\u4f8b\u5982\uff0c\u4f7f\u7528format()<\/code>\u51fd\u6570\uff0c\u6216\u8005\u901a\u8fc7\u81ea\u5b9a\u4e49\u51fd\u6570\u8fdb\u884c\u8f6c\u6362\u3002\u4f46\u8fd9\u4e9b\u65b9\u6cd5\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u8f83\u5c11\u4f7f\u7528\u3002<\/p>\n<\/p>\n
\u5728\u5c06\u6570\u5b57\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u65f6\uff0c\u8fd8\u9700\u6ce8\u610f\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/p>\n<\/p>\n
    \n
  1. \u786e\u4fdd\u8f93\u5165\u7684\u6570\u636e\u7c7b\u578b\u662f\u6570\u5b57\uff0c\u5426\u5219\u53ef\u80fd\u4f1a\u5f15\u53d1\u9519\u8bef\u3002<\/li>\n
  2. \u6ce8\u610f\u6d6e\u70b9\u6570\u7684\u7cbe\u5ea6\u95ee\u9898\uff0c\u5c24\u5176\u662f\u5728\u6d89\u53ca\u8d22\u52a1\u8ba1\u7b97\u65f6\u3002<\/li>\n
  3. \u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u8f6c\u6362\u65b9\u6cd5\uff0c\u786e\u4fdd\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/li>\n<\/ol>\n
    \u603b\u4e4b\uff0c\u5728Python\u4e2d\uff0c\u6709\u591a\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5c06\u6570\u5b57\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32<\/strong>\uff0c\u5305\u62ecstr()\u51fd\u6570\u3001\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u3001repr()\u51fd\u6570\u4ee5\u53ca\u901a\u8fc7\u8fde\u63a5\u7a7a\u5b57\u7b26\u4e32\u7b49\u3002\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u4e0d\u4ec5\u80fd\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\uff0c\u8fd8\u80fd\u786e\u4fdd\u7a0b\u5e8f\u7684\u6b63\u786e\u6027\u548c\u6548\u7387\u3002<\/p>\n<\/p>\n
    \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
     \u5982\u4f55\u5728Python\u4e2d\u5c06\u6574\u6570\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff1f<\/strong>
    \u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684str()<\/code>\u51fd\u6570\u5c06\u6574\u6570\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u6709\u4e00\u4e2a\u6574\u6570\u53d8\u91cfnum<\/code>\uff0c\u53ef\u4ee5\u901a\u8fc7string_num = str(num)<\/code>\u6765\u5b9e\u73b0\u8f6c\u6362\u3002\u8fd9\u79cd\u65b9\u6cd5\u9002\u7528\u4e8e\u5404\u79cd\u6570\u636e\u7c7b\u578b\uff0c\u5305\u62ec\u6574\u6570\u3001\u6d6e\u70b9\u6570\u4ee5\u53ca\u5176\u4ed6\u5bf9\u8c61\u3002<\/p>\n
    \u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u54ea\u4e9b\u65b9\u6cd5\u5c06\u6570\u5b57\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff1f<\/strong>
    \u9664\u4e86str()<\/code>\u51fd\u6570\u5916\uff0cPython\u8fd8\u63d0\u4f9b\u4e86\u5176\u4ed6\u65b9\u6cd5\u6765\u8f6c\u6362\u6570\u5b57\u4e3a\u5b57\u7b26\u4e32\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\uff08f-strings\uff09\u6216format()<\/code>\u65b9\u6cd5\u3002\u4f7f\u7528f-strings\u65f6\uff0c\u53ef\u4ee5\u8fd9\u6837\u5199\uff1astring_num = f"{num}"<\/code>\u3002\u4f7f\u7528format()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u5199\u6210string_num = "{}".format(num)<\/code>\u3002\u8fd9\u4e9b\u65b9\u6cd5\u90fd\u80fd\u5b9e\u73b0\u76f8\u540c\u7684\u6548\u679c\u3002<\/p>\n
    \u8f6c\u6362\u540e\u5b57\u7b26\u4e32\u7684\u683c\u5f0f\u4f1a\u6709\u4ec0\u4e48\u53d8\u5316\u5417\uff1f<\/strong>
    \u5f53\u6570\u5b57\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u540e\uff0c\u5176\u683c\u5f0f\u4f1a\u4fdd\u6301\u4e0d\u53d8\u3002\u4f8b\u5982\uff0c\u6574\u6570123<\/code>\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u540e\u53d8\u4e3a"123"<\/code>\uff0c\u800c\u6d6e\u70b9\u6570123.45<\/code>\u8f6c\u6362\u540e\u5219\u53d8\u4e3a"123.45"<\/code>\u3002\u4e0d\u8fc7\uff0c\u6ce8\u610f\u5982\u679c\u4f7f\u7528str()<\/code>\u51fd\u6570\u5904\u7406\u7279\u6b8a\u60c5\u51b5\uff0c\u5982None<\/code>\u6216\u5176\u4ed6\u5bf9\u8c61\uff0c\u7ed3\u679c\u53ef\u80fd\u4f1a\u662f"None"<\/code>\u6216\u5bf9\u8c61\u7684\u5b57\u7b26\u4e32\u8868\u793a\u3002\u56e0\u6b64\uff0c\u786e\u4fdd\u5728\u8f6c\u6362\u4e4b\u524d\u4e86\u89e3\u6240\u5904\u7406\u7684\u6570\u636e\u7c7b\u578b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528str()\u51fd\u6570\u3001\u4f7f\u7528\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u3001\u4f7f\u7528repr()\u51fd\u6570\u3001\u4ee5\u53ca\u901a\u8fc7\u8fde\u63a5\u7a7a\u5b57\u7b26\u4e32\u7b49\u65b9\u6cd5\u5c06 […]","protected":false},"author":3,"featured_media":1102460,"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\/1102448"}],"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=1102448"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1102448\/revisions"}],"predecessor-version":[{"id":1102463,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1102448\/revisions\/1102463"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1102460"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1102448"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1102448"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1102448"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}