{"id":1099173,"date":"2025-01-08T15:28:04","date_gmt":"2025-01-08T07:28:04","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1099173.html"},"modified":"2025-01-08T15:28:08","modified_gmt":"2025-01-08T07:28:08","slug":"python%e4%b8%ad%e5%a6%82%e4%bd%95%e8%ae%bf%e7%88%b6%e7%b1%bb%e7%9a%84%e5%b1%9e%e6%80%a7-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1099173.html","title":{"rendered":"python\u4e2d\u5982\u4f55\u8bbf\u7236\u7c7b\u7684\u5c5e\u6027"},"content":{"rendered":"

\"python\u4e2d\u5982\u4f55\u8bbf\u7236\u7c7b\u7684\u5c5e\u6027\"<\/p>\n

\u5728Python\u4e2d\uff0c\u8bbf\u95ee\u7236\u7c7b\u7684\u5c5e\u6027\u7684\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528super()<\/code>\u51fd\u6570\u3001\u76f4\u63a5\u8c03\u7528\u7236\u7c7b\u540d\u79f0\u4ee5\u53ca\u901a\u8fc7\u7ee7\u627f\u7684\u65b9\u5f0f\u8bbf\u95ee\u3002<\/strong>\u5176\u4e2d\uff0c\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u662f\u4f7f\u7528super()<\/code>\u51fd\u6570\u6765\u8c03\u7528\u7236\u7c7b\u7684\u65b9\u6cd5\u548c\u5c5e\u6027\u3002\u8fd9\u79cd\u65b9\u5f0f\u4e0d\u4ec5\u7b80\u6d01\uff0c\u800c\u4e14\u53ef\u4ee5\u786e\u4fdd\u4ee3\u7801\u7684\u53ef\u7ef4\u62a4\u6027\u548c\u53ef\u8bfb\u6027\u3002\u4e0b\u9762\u6211\u4eec\u8be6\u7ec6\u8bb2\u89e3\u5982\u4f55\u4f7f\u7528\u8fd9\u4e09\u79cd\u65b9\u6cd5\u4e2d\u7684\u6bcf\u4e00\u79cd\u6765\u8bbf\u95ee\u7236\u7c7b\u7684\u5c5e\u6027\u3002<\/p>\n<\/p>\n

\n

\u4e00\u3001\u4f7f\u7528super()<\/code>\u51fd\u6570<\/h3>\n<\/p>\n

super()<\/code>\u51fd\u6570\u662fPython\u63d0\u4f9b\u7684\u4e00\u4e2a\u5185\u7f6e\u51fd\u6570\uff0c\u5b83\u7528\u4e8e\u8c03\u7528\u7236\u7c7b\u7684\u4e00\u4e2a\u65b9\u6cd5\u6216\u5c5e\u6027\u3002\u4f7f\u7528super()<\/code>\u51fd\u6570\u53ef\u4ee5\u907f\u514d\u663e\u5f0f\u5730\u4f7f\u7528\u7236\u7c7b\u540d\u79f0\uff0c\u4ece\u800c\u63d0\u9ad8\u4ee3\u7801\u7684\u7075\u6d3b\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n<\/p>\n

class Parent:<\/p>\n
    def __init__(self):<\/p>\n
        self.value = "Parent Attribute"<\/p>\n
class Child(Parent):<\/p>\n
    def __init__(self):<\/p>\n
        super().__init__()<\/p>\n
        print(super().value)  # \u8bbf\u95ee\u7236\u7c7b\u7684\u5c5e\u6027<\/p>\n
child = Child()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2aParent<\/code>\u7c7b\u548c\u4e00\u4e2aChild<\/code>\u7c7b\u3002Child<\/code>\u7c7b\u7ee7\u627f\u81eaParent<\/code>\u7c7b\u3002\u5728Child<\/code>\u7c7b\u7684\u6784\u9020\u51fd\u6570\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528super()<\/code>\u51fd\u6570\u6765\u8c03\u7528\u7236\u7c7b\u7684\u6784\u9020\u51fd\u6570\uff0c\u4ece\u800c\u7ee7\u627f\u7236\u7c7b\u7684\u5c5e\u6027\u3002\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528super().value<\/code>\u6765\u8bbf\u95ee\u7236\u7c7b\u7684\u5c5e\u6027value<\/code>\u3002\u8fd9\u79cd\u65b9\u6cd5\u7b80\u6d01\u4e14\u6613\u4e8e\u7ef4\u62a4\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u76f4\u63a5\u8c03\u7528\u7236\u7c7b\u540d\u79f0<\/h3>\n<\/p>\n
\u6709\u65f6\u5019\uff0c\u51fa\u4e8e\u7279\u5b9a\u539f\u56e0\uff0c\u53ef\u80fd\u9700\u8981\u76f4\u63a5\u8c03\u7528\u7236\u7c7b\u7684\u540d\u79f0\u6765\u8bbf\u95ee\u7236\u7c7b\u7684\u5c5e\u6027\u3002\u8fd9\u79cd\u65b9\u6cd5\u867d\u7136\u4e0d\u5982\u4f7f\u7528super()<\/code>\u51fd\u6570\u7b80\u6d01\uff0c\u4f46\u5728\u67d0\u4e9b\u7279\u5b9a\u60c5\u51b5\u4e0b\u53ef\u80fd\u66f4\u76f4\u89c2\u3002<\/p>\n<\/p>\n
class Parent:<\/p>\n
    def __init__(self):<\/p>\n
        self.value = "Parent Attribute"<\/p>\n
class Child(Parent):<\/p>\n
    def __init__(self):<\/p>\n
        Parent.__init__(self)<\/p>\n
        print(Parent.value)  # \u8bbf\u95ee\u7236\u7c7b\u7684\u5c5e\u6027<\/p>\n
child = Child()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u76f4\u63a5\u8c03\u7528\u4e86Parent.__init__(self)<\/code>\u6765\u521d\u59cb\u5316\u7236\u7c7b\u7684\u5c5e\u6027\u3002\u7136\u540e\uff0c\u6211\u4eec\u901a\u8fc7Parent.value<\/code>\u6765\u8bbf\u95ee\u7236\u7c7b\u7684\u5c5e\u6027value<\/code>\u3002\u8fd9\u79cd\u65b9\u6cd5\u867d\u7136\u76f4\u89c2\uff0c\u4f46\u5728\u591a\u91cd\u7ee7\u627f\u7684\u60c5\u51b5\u4e0b\u53ef\u80fd\u4f1a\u5bfc\u81f4\u4ee3\u7801\u7684\u53ef\u7ef4\u62a4\u6027\u53d8\u5dee\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u901a\u8fc7\u7ee7\u627f\u7684\u65b9\u5f0f\u8bbf\u95ee<\/h3>\n<\/p>\n
\u5728Python\u4e2d\uff0c\u5b50\u7c7b\u53ef\u4ee5\u76f4\u63a5\u7ee7\u627f\u7236\u7c7b\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u5b9e\u4f8b\u5316\u5b50\u7c7b\u5bf9\u8c61\u6765\u8bbf\u95ee\u7236\u7c7b\u7684\u5c5e\u6027\u3002<\/p>\n<\/p>\n
class Parent:<\/p>\n
    def __init__(self):<\/p>\n
        self.value = "Parent Attribute"<\/p>\n
class Child(Parent):<\/p>\n
    def __init__(self):<\/p>\n
        super().__init__()<\/p>\n
        print(self.value)  # \u8bbf\u95ee\u7236\u7c7b\u7684\u5c5e\u6027<\/p>\n
child = Child()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u901a\u8fc7self.value<\/code>\u6765\u8bbf\u95ee\u7236\u7c7b\u7684\u5c5e\u6027value<\/code>\u3002\u7531\u4e8eChild<\/code>\u7c7b\u7ee7\u627f\u4e86Parent<\/code>\u7c7b\uff0c\u6240\u4ee5Child<\/code>\u7c7b\u7684\u5b9e\u4f8b\u5bf9\u8c61\u53ef\u4ee5\u76f4\u63a5\u8bbf\u95ee\u7236\u7c7b\u7684\u5c5e\u6027\u3002\u8fd9\u79cd\u65b9\u6cd5\u7b80\u5355\u76f4\u89c2\uff0c\u4f46\u5728\u590d\u6742\u7684\u7ee7\u627f\u5173\u7cfb\u4e2d\u53ef\u80fd\u9700\u8981\u7279\u522b\u6ce8\u610f\u5c5e\u6027\u7684\u540d\u79f0\u51b2\u7a81\u95ee\u9898\u3002<\/p>\n<\/p>\n
\n
\u7ed3\u8bba<\/h3>\n<\/p>\n
\u5728Python\u4e2d\uff0c\u8bbf\u95ee\u7236\u7c7b\u7684\u5c5e\u6027\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u662f\u4f7f\u7528super()<\/code>\u51fd\u6570\u3002\u65e0\u8bba\u662f\u54ea\u79cd\u65b9\u6cd5\uff0c\u90fd\u5e94\u8be5\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u9009\u62e9\u6700\u5408\u9002\u7684\u65b9\u5f0f\uff0c\u4ee5\u786e\u4fdd\u4ee3\u7801\u7684\u53ef\u7ef4\u62a4\u6027\u548c\u53ef\u8bfb\u6027\u3002\u901a\u8fc7\u5408\u7406\u4f7f\u7528\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u5b9e\u73b0\u7c7b\u7684\u7ee7\u627f\u548c\u5c5e\u6027\u7684\u8bbf\u95ee\uff0c\u4ece\u800c\u63d0\u9ad8\u4ee3\u7801\u7684\u590d\u7528\u6027\u548c\u7075\u6d3b\u6027\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5728Python\u4e2d\uff0c\u5982\u4f55\u901a\u8fc7\u5b50\u7c7b\u8bbf\u95ee\u7236\u7c7b\u7684\u79c1\u6709\u5c5e\u6027\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u79c1\u6709\u5c5e\u6027\u901a\u5e38\u4ee5\u53cc\u4e0b\u5212\u7ebf\u5f00\u5934\uff0c\u4f8b\u5982__attribute<\/code>\u3002\u867d\u7136\u79c1\u6709\u5c5e\u6027\u4e0d\u80fd\u76f4\u63a5\u901a\u8fc7\u5b50\u7c7b\u8bbf\u95ee\uff0c\u4f46\u53ef\u4ee5\u901a\u8fc7\u7236\u7c7b\u63d0\u4f9b\u7684\u516c\u5171\u65b9\u6cd5\u6765\u95f4\u63a5\u8bbf\u95ee\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u5728\u7236\u7c7b\u4e2d\u5b9a\u4e49\u4e00\u4e2a\u516c\u5171\u65b9\u6cd5\uff0c\u7528\u4e8e\u8fd4\u56de\u79c1\u6709\u5c5e\u6027\u7684\u503c\u3002\u8fd9\u6837\uff0c\u5b50\u7c7b\u5c31\u80fd\u591f\u901a\u8fc7\u8c03\u7528\u8fd9\u4e2a\u516c\u5171\u65b9\u6cd5\u6765\u83b7\u53d6\u7236\u7c7b\u7684\u79c1\u6709\u5c5e\u6027\u3002<\/p>\n
\u4f7f\u7528super()\u51fd\u6570\u8bbf\u95ee\u7236\u7c7b\u7684\u5c5e\u6027\u6709\u4ec0\u4e48\u4f18\u52bf\uff1f<\/strong>
\u4f7f\u7528super()<\/code>\u51fd\u6570\u53ef\u4ee5\u8ba9\u4f60\u66f4\u65b9\u4fbf\u5730\u8bbf\u95ee\u7236\u7c7b\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u3002\u901a\u8fc7super()<\/code>\uff0c\u53ef\u4ee5\u8c03\u7528\u7236\u7c7b\u7684\u65b9\u6cd5\u800c\u4e0d\u9700\u8981\u660e\u786e\u6307\u5b9a\u7236\u7c7b\u7684\u540d\u79f0\uff0c\u8fd9\u4f7f\u5f97\u4ee3\u7801\u66f4\u52a0\u7075\u6d3b\u548c\u53ef\u7ef4\u62a4\u3002\u540c\u65f6\uff0c\u5728\u591a\u91cd\u7ee7\u627f\u7684\u60c5\u51b5\u4e0b\uff0csuper()<\/code>\u80fd\u591f\u6309\u7167\u65b9\u6cd5\u89e3\u6790\u987a\u5e8f\uff08MRO\uff09\u6b63\u786e\u5730\u8bbf\u95ee\u7236\u7c7b\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\uff0c\u907f\u514d\u4e86\u4e00\u4e9b\u6f5c\u5728\u7684\u547d\u540d\u51b2\u7a81\u3002<\/p>\n
\u5728Python\u4e2d\uff0c\u5982\u4f55\u91cd\u5199\u7236\u7c7b\u7684\u5c5e\u6027\uff1f<\/strong>
\u5728\u5b50\u7c7b\u4e2d\uff0c\u60a8\u53ef\u4ee5\u76f4\u63a5\u5b9a\u4e49\u4e00\u4e2a\u4e0e\u7236\u7c7b\u540c\u540d\u7684\u5c5e\u6027\u6765\u91cd\u5199\u7236\u7c7b\u7684\u5c5e\u6027\u3002\u8fd9\u79cd\u65b9\u6cd5\u4f1a\u4f7f\u5f97\u5b50\u7c7b\u5b9e\u4f8b\u4f18\u5148\u4f7f\u7528\u5b50\u7c7b\u4e2d\u5b9a\u4e49\u7684\u5c5e\u6027\uff0c\u800c\u4e0d\u662f\u7236\u7c7b\u4e2d\u7684\u5c5e\u6027\u3002\u5982\u679c\u60a8\u5e0c\u671b\u5728\u5b50\u7c7b\u4e2d\u8bbf\u95ee\u7236\u7c7b\u7684\u5c5e\u6027\uff0c\u53ef\u4ee5\u4f7f\u7528super()<\/code>\u51fd\u6570\u6216\u76f4\u63a5\u5f15\u7528\u7236\u7c7b\u540d\u6765\u786e\u4fdd\u60a8\u8bbf\u95ee\u7684\u662f\u7236\u7c7b\u7684\u5c5e\u6027\u800c\u4e0d\u662f\u5b50\u7c7b\u7684\u91cd\u5199\u7248\u672c\u3002\u8fd9\u6837\u53ef\u4ee5\u5b9e\u73b0\u66f4\u7075\u6d3b\u7684\u5c5e\u6027\u7ba1\u7406\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u8bbf\u95ee\u7236\u7c7b\u7684\u5c5e\u6027\u7684\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528super()\u51fd\u6570\u3001\u76f4\u63a5\u8c03\u7528\u7236\u7c7b\u540d\u79f0\u4ee5\u53ca\u901a\u8fc7\u7ee7\u627f\u7684\u65b9\u5f0f\u8bbf\u95ee\u3002\u5176\u4e2d […]","protected":false},"author":3,"featured_media":1099179,"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\/1099173"}],"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=1099173"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1099173\/revisions"}],"predecessor-version":[{"id":1099181,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1099173\/revisions\/1099181"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1099179"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1099173"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1099173"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1099173"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}