![\"python\u5982\u4f55\u5224\u65ad\u5b57\u7b26\u4e32\u662f\u5426\u662f\u7eaf\u6570\u5b57\"](\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25102351\/7ce83a80-a5ab-435b-9058-6d2e12aace3f.webp\")
<\/p>\n<\/p>\n
Python\u4e2d\u5224\u65ad\u5b57\u7b26\u4e32\u662f\u5426\u662f\u7eaf\u6570\u5b57\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff1a\u4f7f\u7528\u5185\u7f6e\u5b57\u7b26\u4e32\u65b9\u6cd5 Python \u63d0\u4f9b\u4e86\u975e\u5e38\u65b9\u4fbf\u548c\u5f3a\u5927\u7684\u5b57\u7b26\u4e32\u64cd\u4f5c\u65b9\u6cd5\uff0c\u4f7f\u5f97\u5224\u65ad\u4e00\u4e2a\u5b57\u7b26\u4e32\u662f\u5426\u4e3a\u7eaf\u6570\u5b57\u53d8\u5f97\u975e\u5e38\u7b80\u5355\u3002\u4e0b\u9762\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u5e76\u4e14\u63a2\u8ba8\u5b83\u4eec\u7684\u4f18\u7f3a\u70b9\u53ca\u9002\u7528\u573a\u666f\u3002<\/p>\n<\/p>\n print(s.isdigit()) # \u8f93\u51fa: True<\/p>\n s2 = "123a5"<\/p>\n print(s2.isdigit()) # \u8f93\u51fa: False<\/p>\n <\/code><\/pre>\n<\/p>\n \u8fd9\u4e2a\u65b9\u6cd5\u7684\u4f18\u70b9\u662f\u7b80\u5355\u6613\u7528\uff0c\u9002\u5408\u7528\u4e8e\u5224\u65ad\u7eaf\u6570\u5b57\u5b57\u7b26\u4e32\u3002\u4f46\u662f\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5b83\u53ea\u9002\u7528\u4e8e\u6574\u6570\uff0c\u800c\u4e0d\u9002\u7528\u4e8e\u6d6e\u70b9\u6570\u6216\u5e26\u7b26\u53f7\u7684\u6570\u5b57\u3002<\/p>\n<\/p>\n \u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c if phone_number.isdigit():<\/p>\n print("\u7535\u8bdd\u53f7\u7801\u6709\u6548")<\/p>\n else:<\/p>\n print("\u7535\u8bdd\u53f7\u7801\u65e0\u6548")<\/p>\n <\/code><\/pre>\n<\/p>\n \u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u4e00\u79cd\u5f3a\u5927\u7684\u6587\u672c\u5339\u914d\u5de5\u5177\uff0c\u4f7f\u7528\u5b83\u53ef\u4ee5\u5b9e\u73b0\u590d\u6742\u7684\u5b57\u7b26\u4e32\u5339\u914d\u548c\u66ff\u6362\u64cd\u4f5c\u3002\u5224\u65ad\u4e00\u4e2a\u5b57\u7b26\u4e32\u662f\u5426\u4e3a\u7eaf\u6570\u5b57\uff0c\u53ef\u4ee5\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f s = "12345"<\/p>\n if re.fullmatch(r"\\d+", s):<\/p>\n print("\u5b57\u7b26\u4e32\u662f\u7eaf\u6570\u5b57")<\/p>\n else:<\/p>\n print("\u5b57\u7b26\u4e32\u4e0d\u662f\u7eaf\u6570\u5b57")<\/p>\n <\/code><\/pre>\n<\/p>\n \u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u4f18\u52bf\u5728\u4e8e\u7075\u6d3b\u6027\u548c\u5f3a\u5927\u7684\u5339\u914d\u80fd\u529b\uff0c\u9002\u7528\u4e8e\u66f4\u590d\u6742\u7684\u5b57\u7b26\u4e32\u9a8c\u8bc1\u9700\u6c42\u3002\u4f8b\u5982\uff0c\u9a8c\u8bc1\u4e00\u4e2a\u5b57\u7b26\u4e32\u662f\u5426\u4e3a\u5e26\u5c0f\u6570\u70b9\u7684\u6570\u5b57\uff0c\u53ef\u4ee5\u7528 \u5728\u6570\u636e\u5206\u6790\u548c\u5904\u7406\u8fc7\u7a0b\u4e2d\uff0c\u5e38\u5e38\u9700\u8981\u9a8c\u8bc1\u6570\u636e\u683c\u5f0f\u3002\u6bd4\u5982\uff0c\u9a8c\u8bc1\u4e00\u4e2a\u5b57\u7b26\u4e32\u662f\u5426\u4e3a\u6d6e\u70b9\u6570\uff1a<\/p>\n<\/p>\n s = "123.45"<\/p>\n if re.fullmatch(r"\\d+(\\.\\d+)?", s):<\/p>\n print("\u5b57\u7b26\u4e32\u662f\u6d6e\u70b9\u6570")<\/p>\n else:<\/p>\n print("\u5b57\u7b26\u4e32\u4e0d\u662f\u6d6e\u70b9\u6570")<\/p>\n <\/code><\/pre>\n<\/p>\n \u867d\u7136\u524d\u4e24\u79cd\u65b9\u6cd5\u5df2\u7ecf\u8db3\u591f\u89e3\u51b3\u5927\u90e8\u5206\u95ee\u9898\uff0c\u4f46\u6709\u65f6\u5019\u6211\u4eec\u53ef\u80fd\u9700\u8981\u66f4\u7075\u6d3b\u7684\u63a7\u5236\uff0c\u8fd9\u65f6\u53ef\u4ee5\u624b\u52a8\u5faa\u73af\u5224\u65ad\u5b57\u7b26\u4e32\u4e2d\u7684\u6bcf\u4e00\u4e2a\u5b57\u7b26\uff1a<\/p>\n<\/p>\n is_digit = True<\/p>\n for char in s:<\/p>\n if not char.isdigit():<\/p>\n is_digit = False<\/p>\n break<\/p>\n print(is_digit) # \u8f93\u51fa: True<\/p>\n <\/code><\/pre>\n<\/p>\n \u8fd9\u79cd\u65b9\u6cd5\u7684\u4f18\u52bf\u5728\u4e8e\u53ef\u4ee5\u5728\u5224\u65ad\u8fc7\u7a0b\u4e2d\u6dfb\u52a0\u66f4\u591a\u7684\u903b\u8f91\uff0c\u6bd4\u5982\u5bf9\u4e0d\u540c\u5b57\u7b26\u7684\u4e0d\u540c\u5904\u7406\u3002<\/p>\n<\/p>\n \u5728\u4e00\u4e9b\u7279\u5b9a\u7684\u4e1a\u52a1\u903b\u8f91\u4e2d\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u5bf9\u5b57\u7b26\u4e32\u4e2d\u7684\u6bcf\u4e00\u4e2a\u5b57\u7b26\u8fdb\u884c\u4e0d\u540c\u7684\u5904\u7406\uff0c\u8fd9\u65f6\u624b\u52a8\u5faa\u73af\u5224\u65ad\u5c31\u663e\u5f97\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff0c\u5224\u65ad\u4e00\u4e2a\u5b57\u7b26\u4e32\u4e2d\u662f\u5426\u5305\u542b\u7279\u5b9a\u7684\u5b57\u7b26\u7c7b\u578b\uff1a<\/p>\n<\/p>\n has_digit = False<\/p>\n has_alpha = False<\/p>\n for char in s:<\/p>\n if char.isdigit():<\/p>\n has_digit = True<\/p>\n if char.isalpha():<\/p>\n has_alpha = True<\/p>\n print(f"\u5b57\u7b26\u4e32\u5305\u542b\u6570\u5b57: {has_digit}, \u5b57\u6bcd: {has_alpha}")<\/p>\n <\/code><\/pre>\n<\/p>\n print(s.isnumeric()) # \u8f93\u51fa: True<\/p>\n <\/code><\/pre>\n<\/p>\n print(s.isdecimal()) # \u8f93\u51fa: True<\/p>\n s2 = "12345\u2167"<\/p>\n print(s2.isdecimal()) # \u8f93\u51fa: False<\/p>\n <\/code><\/pre>\n<\/p>\n \u5728 Python \u4e2d\uff0c\u5224\u65ad\u5b57\u7b26\u4e32\u662f\u5426\u4e3a\u7eaf\u6570\u5b57\u7684\u65b9\u6cd5\u591a\u79cd\u591a\u6837\uff0c\u9009\u62e9\u9002\u5408\u7684\u65b9\u6cd5\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u6548\u7387\u3002 \u4e3a\u4e86\u786e\u4fdd\u4ee3\u7801\u7684\u5065\u58ee\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u63a8\u8350\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\u4f18\u5148\u4f7f\u7528\u5185\u7f6e\u65b9\u6cd5\uff0c\u5982 \u5982\u4f55\u5728Python\u4e2d\u68c0\u67e5\u4e00\u4e2a\u5b57\u7b26\u4e32\u662f\u5426\u5305\u542b\u975e\u6570\u5b57\u5b57\u7b26\uff1f<\/strong> \u5982\u679c\u5b57\u7b26\u4e32\u4e2d\u5305\u542b\u5176\u4ed6\u5b57\u7b26\uff0c\u5982\u5b57\u6bcd\u6216\u7b26\u53f7\uff0c\u5219\u8fd9\u4e9b\u65b9\u6cd5\u4f1a\u8fd4\u56deFalse\u3002<\/p>\n \u6709\u54ea\u4e9b\u5176\u4ed6\u65b9\u6cd5\u53ef\u4ee5\u5224\u65ad\u5b57\u7b26\u4e32\u662f\u5426\u4e3a\u6570\u5b57\uff1f<\/strong> \u8fd9\u79cd\u65b9\u6cd5\u63d0\u4f9b\u4e86\u66f4\u5927\u7684\u7075\u6d3b\u6027\uff0c\u53ef\u4ee5\u6839\u636e\u9700\u8981\u8fdb\u884c\u81ea\u5b9a\u4e49\u5339\u914d\u3002<\/p>\n \u5982\u679c\u5b57\u7b26\u4e32\u5305\u542b\u7a7a\u683c\u6216\u8005\u5176\u4ed6\u7279\u6b8a\u5b57\u7b26\uff0c\u5982\u4f55\u5904\u7406\uff1f<\/strong> \u8fd9\u6837\u53ef\u4ee5\u786e\u4fdd\u53ea\u68c0\u67e5\u6709\u6548\u7684\u6570\u5b57\u90e8\u5206\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Python\u4e2d\u5224\u65ad\u5b57\u7b26\u4e32\u662f\u5426\u662f\u7eaf\u6570\u5b57\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff1a\u4f7f\u7528\u5185\u7f6e\u5b57\u7b26\u4e32\u65b9\u6cd5isdigit()\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u3001\u4ee5\u53ca\u624b\u52a8\u5faa […]","protected":false},"author":3,"featured_media":1132976,"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\/1132968"}],"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=1132968"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1132968\/revisions"}],"predecessor-version":[{"id":1132977,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1132968\/revisions\/1132977"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1132976"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1132968"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1132968"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1132968"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}isdigit()<\/code>\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u3001\u4ee5\u53ca\u624b\u52a8\u5faa\u73af\u5224\u65ad\u3002<\/strong> \u5728\u8fd9\u5176\u4e2d\uff0c\u6700\u5e38\u7528\u548c\u6700\u7b80\u5355\u7684\u65b9\u6cd5\u662f\u4f7f\u7528\u5185\u7f6e\u7684isdigit()<\/code>\u65b9\u6cd5\u3002\u8fd9\u4e2a\u65b9\u6cd5\u53ef\u4ee5\u76f4\u63a5\u5224\u65ad\u5b57\u7b26\u4e32\u4e2d\u7684\u6bcf\u4e00\u4e2a\u5b57\u7b26\u662f\u5426\u90fd\u662f\u6570\u5b57\u3002<\/p>\n<\/p>\n\u4e00\u3001\u4f7f\u7528\u5b57\u7b26\u4e32\u65b9\u6cd5
isdigit()<\/code><\/h2>\n<\/p>\nisdigit()<\/code> \u65b9\u6cd5\u8be6\u89e3<\/h3>\n<\/p>\nisdigit()<\/code> \u662f Python \u5185\u7f6e\u7684\u5b57\u7b26\u4e32\u65b9\u6cd5\uff0c\u7528\u4e8e\u5224\u65ad\u5b57\u7b26\u4e32\u4e2d\u6240\u6709\u5b57\u7b26\u662f\u5426\u90fd\u662f\u6570\u5b57\u3002\u4f7f\u7528\u65b9\u6cd5\u975e\u5e38\u7b80\u5355\uff1a<\/p>\n<\/p>\ns = "12345"<\/p>\n\u5b9e\u9645\u5e94\u7528\u573a\u666f<\/h3>\n<\/p>\n
isdigit()<\/code> \u65b9\u6cd5\u53ef\u4ee5\u7528\u4e8e\u8868\u5355\u9a8c\u8bc1\u3001\u6570\u636e\u6e05\u6d17\u7b49\u573a\u666f\u3002\u4f8b\u5982\uff0c\u7528\u6237\u8f93\u5165\u4e00\u4e2a\u7535\u8bdd\u53f7\u7801\u65f6\uff0c\u7cfb\u7edf\u9700\u8981\u786e\u4fdd\u8f93\u5165\u7684\u5185\u5bb9\u662f\u7eaf\u6570\u5b57\u3002<\/p>\n<\/p>\nphone_number = input("\u8bf7\u8f93\u5165\u7535\u8bdd\u53f7\u7801: ")<\/p>\n\u4e8c\u3001\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f<\/h2>\n<\/p>\n
\u6b63\u5219\u8868\u8fbe\u5f0f\u8be6\u89e3<\/h3>\n<\/p>\n
^\\d+$<\/code>\uff1a<\/p>\n<\/p>\nimport re<\/p>\n^\\d+(\\.\\d+)?$<\/code>\u3002<\/p>\n<\/p>\n\u5b9e\u9645\u5e94\u7528\u573a\u666f<\/h3>\n<\/p>\n
import re<\/p>\n\u4e09\u3001\u624b\u52a8\u5faa\u73af\u5224\u65ad<\/h2>\n<\/p>\n
\u624b\u52a8\u5faa\u73af\u5224\u65ad\u8be6\u89e3<\/h3>\n<\/p>\n
s = "12345"<\/p>\n\u5b9e\u9645\u5e94\u7528\u573a\u666f<\/h3>\n<\/p>\n
s = "123abc"<\/p>\n\u56db\u3001\u5176\u4ed6\u65b9\u6cd5<\/h2>\n<\/p>\n
str.isnumeric()<\/code> \u65b9\u6cd5<\/h3>\n<\/p>\nisnumeric()<\/code> \u65b9\u6cd5\u7c7b\u4f3c\u4e8e isdigit()<\/code>\uff0c\u4f46\u5b83\u53ef\u4ee5\u8bc6\u522b\u66f4\u591a\u7684\u6570\u5b57\u5f62\u5f0f\uff0c\u5305\u62ec Unicode \u6570\u5b57\u5b57\u7b26\u3002\u4f8b\u5982\uff0c\u7f57\u9a6c\u6570\u5b57\u548c\u5206\u6570\u5b57\u7b26\uff1a<\/p>\n<\/p>\ns = "\u2167"<\/p>\nstr.isdecimal()<\/code> \u65b9\u6cd5<\/h3>\n<\/p>\nisdecimal()<\/code> \u65b9\u6cd5\u5224\u65ad\u5b57\u7b26\u4e32\u4e2d\u7684\u5b57\u7b26\u662f\u5426\u4e3a\u5341\u8fdb\u5236\u5b57\u7b26\u3002\u5b83\u6bd4 isdigit()<\/code> \u66f4\u4e25\u683c\uff0c\u4e0d\u8bc6\u522b\u4e0a\u6807\u6570\u5b57\u7b49\uff1a<\/p>\n<\/p>\ns = "12345"<\/p>\n\u4e94\u3001\u603b\u7ed3<\/h2>\n<\/p>\n
isdigit()<\/code> \u65b9\u6cd5\u6700\u4e3a\u7b80\u5355\u548c\u5e38\u7528\uff0c\u4f46\u5728\u5904\u7406\u66f4\u590d\u6742\u7684\u6570\u5b57\u683c\u5f0f\u65f6\uff0c\u6b63\u5219\u8868\u8fbe\u5f0f\u548c\u624b\u52a8\u5faa\u73af\u5224\u65ad\u63d0\u4f9b\u4e86\u66f4\u5927\u7684\u7075\u6d3b\u6027\u3002<\/strong> \u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u66f4\u597d\u5730\u89e3\u51b3\u5b9e\u9645\u95ee\u9898\u3002<\/p>\n<\/p>\nisdigit()<\/code>\uff0c\u5728\u9700\u8981\u66f4\u590d\u6742\u7684\u5224\u65ad\u65f6\u518d\u8003\u8651\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u548c\u624b\u52a8\u5faa\u73af\u5224\u65ad\u3002\u8fd9\u6837\u4e0d\u4ec5\u80fd\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\uff0c\u8fd8\u80fd\u51cf\u5c11\u6f5c\u5728\u7684\u9519\u8bef\u3002<\/p>\n<\/p>\n\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5b57\u7b26\u4e32\u7684isnumeric()<\/code>\u6216isdigit()<\/code>\u65b9\u6cd5\u6765\u5224\u65ad\u5b57\u7b26\u4e32\u662f\u5426\u53ea\u5305\u542b\u6570\u5b57\u5b57\u7b26\u3002\u8fd9\u4e9b\u65b9\u6cd5\u4f1a\u8fd4\u56de\u4e00\u4e2a\u5e03\u5c14\u503c\uff0c\u6307\u793a\u5b57\u7b26\u4e32\u4e2d\u662f\u5426\u6240\u6709\u5b57\u7b26\u90fd\u662f\u6570\u5b57\u3002\u4f8b\u5982\uff1a <\/p>\nstring = "12345"\nis_numeric = string.isnumeric() # \u8fd4\u56de True\n<\/code><\/pre>\n
\u9664\u4e86\u4f7f\u7528isnumeric()<\/code>\u548cisdigit()<\/code>\u65b9\u6cd5\u5916\uff0c\u8fd8\u53ef\u4ee5\u5c1d\u8bd5\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u3002\u901a\u8fc7re<\/code>\u6a21\u5757\u53ef\u4ee5\u7f16\u5199\u5982\u4e0b\u4ee3\u7801\uff1a <\/p>\nimport re\nstring = "12345"\nis_digit = bool(re.match("^\\d+$", string)) # \u8fd4\u56de True\n<\/code><\/pre>\n
\u5728\u4f7f\u7528isnumeric()<\/code>\u6216isdigit()<\/code>\u5224\u65ad\u5b57\u7b26\u4e32\u65f6\uff0c\u5982\u679c\u5b57\u7b26\u4e32\u5305\u542b\u7a7a\u683c\u6216\u7279\u6b8a\u5b57\u7b26\uff0c\u8fd9\u4e9b\u65b9\u6cd5\u4f1a\u8fd4\u56deFalse\u3002\u53ef\u4ee5\u5728\u68c0\u67e5\u4e4b\u524d\u4f7f\u7528strip()<\/code>\u65b9\u6cd5\u53bb\u6389\u524d\u540e\u7a7a\u683c\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a <\/p>\nstring = " 12345 "\nis_numeric = string.strip().isnumeric() # \u8fd4\u56de True\n<\/code><\/pre>\n