{"id":1118342,"date":"2025-01-08T18:34:31","date_gmt":"2025-01-08T10:34:31","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1118342.html"},"modified":"2025-01-08T18:34:33","modified_gmt":"2025-01-08T10:34:33","slug":"python%e5%a6%82%e4%bd%95%e8%bf%9e%e6%8e%a5%e4%b8%a4%e4%b8%aa%e5%ad%97%e7%ac%a6","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1118342.html","title":{"rendered":"python\u5982\u4f55\u8fde\u63a5\u4e24\u4e2a\u5b57\u7b26"},"content":{"rendered":"

\"python\u5982\u4f55\u8fde\u63a5\u4e24\u4e2a\u5b57\u7b26\"<\/p>\n

Python\u4e2d\u8fde\u63a5\u4e24\u4e2a\u5b57\u7b26\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u65b9\u6cd5\uff0c\u5982\u4f7f\u7528\u52a0\u53f7\uff08+\uff09\u3001join()\u65b9\u6cd5\u3001\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u7b49\u3002\u63a8\u8350\u4f7f\u7528\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\uff0c\u56e0\u4e3a\u5b83\u66f4\u5177\u53ef\u8bfb\u6027\uff0c\u7075\u6d3b\u6027\u5f3a\u3002<\/strong><\/p>\n<\/p>\n

\u5728Python\u4e2d\uff0c\u5b57\u7b26\u4e32\u8fde\u63a5\u662f\u4e00\u4e2a\u5e38\u89c1\u7684\u64cd\u4f5c\uff0c\u6709\u591a\u79cd\u65b9\u5f0f\u53ef\u4ee5\u5b9e\u73b0\u3002\u4ee5\u4e0b\u662f\u51e0\u79cd\u5e38\u89c1\u7684\u65b9\u6cd5\uff1a<\/p>\n<\/p>\n

    \n
  1. \u4f7f\u7528\u52a0\u53f7\uff08+\uff09\u8fd0\u7b97\u7b26<\/li>\n
  2. \u4f7f\u7528join()\u65b9\u6cd5<\/li>\n
  3. \u4f7f\u7528\u683c\u5f0f\u5316\u5b57\u7b26\u4e32<\/li>\n
  4. \u4f7f\u7528f-string\uff08Python 3.6+\uff09<\/li>\n
  5. \u4f7f\u7528%\u64cd\u4f5c\u7b26<\/li>\n<\/ol>\n

    \u4e00\u3001\u4f7f\u7528\u52a0\u53f7\uff08+\uff09\u8fd0\u7b97\u7b26<\/h3>\n<\/p>\n

    \u52a0\u53f7\uff08+\uff09\u8fd0\u7b97\u7b26\u662f\u6700\u76f4\u89c2\u7684\u4e00\u79cd\u8fde\u63a5\u5b57\u7b26\u4e32\u7684\u65b9\u6cd5\u3002\u8fd9\u79cd\u65b9\u6cd5\u7b80\u5355\u6613\u61c2\uff0c\u4f46\u5728\u9700\u8981\u8fde\u63a5\u591a\u4e2a\u5b57\u7b26\u4e32\u65f6\uff0c\u6548\u7387\u53ef\u80fd\u4e0d\u9ad8\uff0c\u56e0\u4e3a\u6bcf\u6b21\u8fde\u63a5\u90fd\u4f1a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\u5bf9\u8c61\u3002<\/p>\n<\/p>\n

    str1 = "Hello"<\/p>\n
    str2 = "World"<\/p>\n
    result = str1 + " " + str2<\/p>\n
    print(result)  # \u8f93\u51fa: Hello World<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u4e8c\u3001\u4f7f\u7528join()\u65b9\u6cd5<\/h3>\n<\/p>\n
    join()\u65b9\u6cd5\u662f\u5b57\u7b26\u4e32\u8fde\u63a5\u7684\u53e6\u4e00\u79cd\u65b9\u6cd5\uff0c\u7279\u522b\u9002\u7528\u4e8e\u9700\u8981\u8fde\u63a5\u591a\u4e2a\u5b57\u7b26\u4e32\u7684\u573a\u666f\u3002\u5b83\u5728\u8fde\u63a5\u65f6\u4e0d\u4f1a\u50cf\u52a0\u53f7\u8fd0\u7b97\u7b26\u90a3\u6837\u521b\u5efa\u591a\u4e2a\u4e2d\u95f4\u5b57\u7b26\u4e32\u5bf9\u8c61\uff0c\u56e0\u6b64\u6548\u7387\u66f4\u9ad8\u3002<\/p>\n<\/p>\n
    str1 = "Hello"<\/p>\n
    str2 = "World"<\/p>\n
    result = " ".join([str1, str2])<\/p>\n
    print(result)  # \u8f93\u51fa: Hello World<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u4e09\u3001\u4f7f\u7528\u683c\u5f0f\u5316\u5b57\u7b26\u4e32<\/h3>\n<\/p>\n
    \u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u662f\u4e00\u79cd\u7075\u6d3b\u4e14\u53ef\u8bfb\u6027\u5f3a\u7684\u5b57\u7b26\u4e32\u8fde\u63a5\u65b9\u6cd5\u3002\u53ef\u4ee5\u4f7f\u7528format()\u65b9\u6cd5\u6216\u8005f-string\uff08Python 3.6+\uff09\u6765\u5b9e\u73b0\u3002<\/p>\n<\/p>\n
    \u4f7f\u7528format()\u65b9\u6cd5<\/h4>\n<\/p>\n
    str1 = "Hello"<\/p>\n
    str2 = "World"<\/p>\n
    result = "{} {}".format(str1, str2)<\/p>\n
    print(result)  # \u8f93\u51fa: Hello World<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u4f7f\u7528f-string\uff08Python 3.6+\uff09<\/h4>\n<\/p>\n
    str1 = "Hello"<\/p>\n
    str2 = "World"<\/p>\n
    result = f"{str1} {str2}"<\/p>\n
    print(result)  # \u8f93\u51fa: Hello World<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u56db\u3001\u4f7f\u7528%\u64cd\u4f5c\u7b26<\/h3>\n<\/p>\n
    \u8fd9\u79cd\u65b9\u6cd5\u662f\u8f83\u8001\u7684\u4e00\u79cd\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u65b9\u5f0f\uff0c\u4f46\u4ecd\u7136\u6709\u6548\u3002<\/p>\n<\/p>\n
    str1 = "Hello"<\/p>\n
    str2 = "World"<\/p>\n
    result = "%s %s" % (str1, str2)<\/p>\n
    print(result)  # \u8f93\u51fa: Hello World<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u4e94\u3001\u5b9e\u4f8b\u5206\u6790\u53ca\u6027\u80fd\u5bf9\u6bd4<\/h3>\n<\/p>\n
    \u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\u4e3b\u8981\u53d6\u51b3\u4e8e\u5177\u4f53\u60c5\u51b5\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5b9e\u4f8b\u5206\u6790\u53ca\u6027\u80fd\u5bf9\u6bd4\u3002<\/p>\n<\/p>\n
    1. \u8fde\u63a5\u591a\u4e2a\u5b57\u7b26\u4e32<\/h4>\n<\/p>\n
    \u5bf9\u4e8e\u9700\u8981\u8fde\u63a5\u591a\u4e2a\u5b57\u7b26\u4e32\u7684\u573a\u666f\uff0cjoin()\u65b9\u6cd5\u7684\u6548\u7387\u901a\u5e38\u66f4\u9ad8\u3002<\/p>\n<\/p>\n
    str_list = ["Hello", "World", "from", "Python"]<\/p>\n
    result = " ".join(str_list)<\/p>\n
    print(result)  # \u8f93\u51fa: Hello World from Python<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    2. \u52a8\u6001\u751f\u6210\u5b57\u7b26\u4e32<\/h4>\n<\/p>\n
    \u5728\u52a8\u6001\u751f\u6210\u5b57\u7b26\u4e32\u7684\u573a\u666f\u4e0b\uff0cf-string\u63d0\u4f9b\u4e86\u66f4\u7b80\u6d01\u7684\u8bed\u6cd5\u3002<\/p>\n<\/p>\n
    name = "John"<\/p>\n
    age = 30<\/p>\n
    result = f"My name is {name} and I am {age} years old."<\/p>\n
    print(result)  # \u8f93\u51fa: My name is John and I am 30 years old.<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    3. \u6027\u80fd\u5bf9\u6bd4<\/h4>\n<\/p>\n
    \u5bf9\u4e8e\u7b80\u5355\u7684\u5b57\u7b26\u4e32\u8fde\u63a5\uff0c\u6027\u80fd\u5dee\u5f02\u4e0d\u5927\u3002\u4f46\u5728\u8fde\u63a5\u5927\u91cf\u5b57\u7b26\u4e32\u65f6\uff0cjoin()\u65b9\u6cd5\u7684\u6027\u80fd\u901a\u5e38\u4f18\u4e8e\u52a0\u53f7\uff08+\uff09\u8fd0\u7b97\u7b26\u3002<\/p>\n<\/p>\n
    import time<\/p>\n
    \u4f7f\u7528\u52a0\u53f7<\/strong><\/h2>\n
    start_time = time.time()<\/p>\n
    result = ""<\/p>\n
    for i in range(10000):<\/p>\n
        result += str(i)<\/p>\n
    end_time = time.time()<\/p>\n
    print("Using +: ", end_time - start_time)<\/p>\n
    \u4f7f\u7528join()<\/strong><\/h2>\n
    start_time = time.time()<\/p>\n
    result = "".join([str(i) for i in range(10000)])<\/p>\n
    end_time = time.time()<\/p>\n
    print("Using join(): ", end_time - start_time)<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u4ece\u4e0a\u9762\u7684\u4ee3\u7801\u53ef\u4ee5\u770b\u51fa\uff0c\u5728\u5904\u7406\u5927\u91cf\u5b57\u7b26\u4e32\u8fde\u63a5\u65f6\uff0cjoin()\u65b9\u6cd5\u7684\u6027\u80fd\u660e\u663e\u4f18\u4e8e\u52a0\u53f7\uff08+\uff09\u8fd0\u7b97\u7b26\u3002<\/p>\n<\/p>\n
    \u7ed3\u8bba<\/h3>\n<\/p>\n
    Python\u4e2d\u8fde\u63a5\u4e24\u4e2a\u5b57\u7b26\u7684\u65b9\u6cd5\u6709\u5f88\u591a\uff0c\u6700\u5e38\u89c1\u7684\u5305\u62ec\u52a0\u53f7\uff08+\uff09\u8fd0\u7b97\u7b26\u3001join()\u65b9\u6cd5\u3001\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\uff08format()\u65b9\u6cd5\u548cf-string\uff09\u4ee5\u53ca%\u64cd\u4f5c\u7b26\u3002<\/strong> \u52a0\u53f7\u8fd0\u7b97\u7b26\u7b80\u5355\u76f4\u89c2\uff0c\u4f46\u5728\u5904\u7406\u5927\u91cf\u5b57\u7b26\u4e32\u8fde\u63a5\u65f6\u6548\u7387\u8f83\u4f4e\uff1bjoin()\u65b9\u6cd5\u6548\u7387\u66f4\u9ad8\uff0c\u9002\u7528\u4e8e\u8fde\u63a5\u591a\u4e2a\u5b57\u7b26\u4e32\uff1b\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u63d0\u4f9b\u4e86\u66f4\u597d\u7684\u53ef\u8bfb\u6027\u548c\u7075\u6d3b\u6027\u3002\u6839\u636e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\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\u8fde\u63a5\u5b57\u7b26\u4e32\uff1f<\/strong>
    \u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u52a0\u53f7\uff08+<\/code>\uff09\u8fd0\u7b97\u7b26\u6765\u8fde\u63a5\u4e24\u4e2a\u6216\u591a\u4e2a\u5b57\u7b26\u4e32\u3002\u4f8b\u5982\uff0cstr1 + str2<\/code> \u4f1a\u8fd4\u56de\u5c06 str1<\/code> \u548c str2<\/code> \u5408\u5e76\u540e\u7684\u65b0\u5b57\u7b26\u4e32\u3002\u6b64\u5916\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528 join()<\/code> \u65b9\u6cd5\u6765\u8fde\u63a5\u5b57\u7b26\u4e32\u5217\u8868\uff0c\u63d0\u4f9b\u66f4\u7075\u6d3b\u7684\u8fde\u63a5\u65b9\u5f0f\u3002<\/p>\n
    \u4f7f\u7528\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u8fde\u63a5\u5b57\u7b26\u7684\u6700\u4f73\u5b9e\u8df5\u662f\u4ec0\u4e48\uff1f<\/strong>
    \u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u53ef\u4ee5\u901a\u8fc7 f-string\uff08\u5728Python 3.6\u53ca\u4ee5\u4e0a\u7248\u672c\u4e2d\u53ef\u7528\uff09\u5b9e\u73b0\u4f18\u96c5\u7684\u5b57\u7b26\u4e32\u8fde\u63a5\u3002\u4f8b\u5982\uff0cf"{str1} {str2}"<\/code> \u53ef\u4ee5\u5728\u8fde\u63a5\u7684\u540c\u65f6\u6dfb\u52a0\u7a7a\u683c\uff0c\u63d0\u5347\u53ef\u8bfb\u6027\u3002\u5bf9\u4e8e\u8f83\u590d\u6742\u7684\u5b57\u7b26\u4e32\u7ec4\u5408\uff0c\u4f7f\u7528\u683c\u5f0f\u5316\u65b9\u6cd5\uff08\u5982 .format()<\/code>\uff09\u4e5f\u662f\u4e00\u79cd\u4e0d\u9519\u7684\u9009\u62e9\u3002<\/p>\n
    \u5728Python\u4e2d\u662f\u5426\u6709\u5176\u4ed6\u5b57\u7b26\u4e32\u8fde\u63a5\u7684\u65b9\u6cd5\uff1f<\/strong>
    \u9664\u4e86\u4f7f\u7528\u52a0\u53f7\u548c join()<\/code> \u65b9\u6cd5\u4e4b\u5916\uff0cPython \u8fd8\u63d0\u4f9b\u4e86\u591a\u79cd\u8fde\u63a5\u5b57\u7b26\u4e32\u7684\u65b9\u5f0f\uff0c\u4f8b\u5982\u4f7f\u7528 str.format()<\/code> \u65b9\u6cd5\u548c f-string\u3002\u5bf9\u4e8e\u6027\u80fd\u8981\u6c42\u8f83\u9ad8\u7684\u573a\u666f\uff0cstr.join()<\/code> \u5728\u8fde\u63a5\u591a\u4e2a\u5b57\u7b26\u4e32\u65f6\u66f4\u4e3a\u9ad8\u6548\uff0c\u5c24\u5176\u662f\u5728\u5904\u7406\u5927\u91cf\u5b57\u7b26\u4e32\u65f6\uff0c\u80fd\u591f\u51cf\u5c11\u5185\u5b58\u6d88\u8017\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Python\u4e2d\u8fde\u63a5\u4e24\u4e2a\u5b57\u7b26\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u65b9\u6cd5\uff0c\u5982\u4f7f\u7528\u52a0\u53f7\uff08+\uff09\u3001join()\u65b9\u6cd5\u3001\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u7b49\u3002\u63a8\u8350\u4f7f\u7528\u683c\u5f0f\u5316 […]","protected":false},"author":3,"featured_media":1118347,"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\/1118342"}],"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=1118342"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1118342\/revisions"}],"predecessor-version":[{"id":1118348,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1118342\/revisions\/1118348"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1118347"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1118342"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1118342"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1118342"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}