{"id":98,"date":"2021-06-21T00:17:25","date_gmt":"2021-06-20T16:17:25","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/python\/?p=98"},"modified":"2021-06-21T00:24:43","modified_gmt":"2021-06-20T16:24:43","slug":"python%e6%96%b9%e6%b3%95%e7%9a%84%e9%87%8d%e5%86%99","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/python\/post-98.html","title":{"rendered":"python\u65b9\u6cd5\u7684\u91cd\u5199"},"content":{"rendered":"\n

\u65b9\u6cd5\u7684\u91cd\u5199, \u6307\u7684\u662f\u5728\u5b50\u7c7b\u7ee7\u627f\u7236\u7c7b\u65f6, \u5b50\u7c7b\u53ef\u4ee5\u5bf9\u7236\u7c7b\u7684\u65b9\u6cd5\u8fdb\u884c\u91cd\u5199<\/p>\n\n\n\n

\u91cd\u5199, \u4e5f\u53eb\u8986\u76d6, \u66f4\u901a\u7528\u7684\u8bf4\u6cd5\u662f, \u8986\u76d6\u91cd\u5199<\/p>\n\n\n\n

\u5e94\u7528\u573a\u666f\u662f, \u5f53\u7ee7\u627f\u7684\u65b9\u6cd5\u5df2\u7ecf\u4e0d\u80fd\u6ee1\u8db3\u65f6, \u6216\u903b\u8f91\u53d1\u9001\u6539\u53d8<\/p>\n\n\n\n

\u7b80\u5355\u7684\u91cd\u5199\u8986\u76d6\u5b9e\u4f8b<\/strong><\/p>\n\n\n\n

class Animal:\n\n    def eat(self):\n        print(\"\u5403\")\n\n    def drink(self):\n        print(\"\u559d\")\n\n    def run(self):\n        print(\"\u8dd1\")\n\n    def sleep(self):\n        print(\"\u7761\")\n\nclass Dog(Animal):\n\n    def eat(self):    #\u5bf9\u539f\u65b9\u6cd5\u8fdb\u884c\u4e86\u91cd\u5199\u8986\u76d6\n        print(\"\u5403\u9aa8\u5934\")\n\nwangcai = Dog()  #\u521b\u5efa\u4e00\u4e2adog\u5bf9\u8c61\n\nwangcai.eat()   #dog\u7c7b\u8986\u76d6\u540e\u7684\u65b9\u6cd5<\/code><\/pre>\n\n\n\n
\u91cd\u5199\u7684\u65b9\u5f0f, \u662f\u5728\u5b50\u7c7b\u5b9a\u4e49\u4e00\u4e2a\u540c\u540d\u7684\u65b9\u6cd5, \u90a3\u4e48\u518d\u8c03\u7528\u65f6\u9ed8\u8ba4\u4f7f\u7528\u5b50\u7c7b\u91cd\u5199\u540e\u7684\u65b9\u6cd5<\/p>\n\n\n\n
\u6269\u5c55\u91cd\u5199\u5b9e\u4f8b<\/strong><\/p>\n\n\n\n
\u6b64\u5916, \u8fd8\u6709\u4e00\u79cd\u6269\u5c55\u91cd\u5199\u7684\u8bf4\u6cd5, \u4f46\u8fd9\u5e76\u4e0d\u51c6\u786e, \u5b83\u672c\u8d28\u662f\u8c03\u7528\u4e86\u7236\u7c7b\u88ab\u8986\u76d6\u7684\u65b9\u6cd5<\/p>\n\n\n\n
\u6211\u4eec\u53ef\u4ee5\u5728\u91cd\u5199\u65f6, \u65e2\u4fdd\u7559\u7236\u7c7b\u65b9\u6cd5\u7684\u4ee3\u7801, \u53c8\u589e\u6dfb\u4e00\u4e9b, \u8fd9\u91cc\u9700\u8981\u7528\u5230super\u5173\u952e\u5b57<\/p>\n\n\n\n
class Animal:\n\n    def eat(self):\n        print(\"\u5403\")\n\n    def drink(self):\n        print(\"\u559d\")\n\n    def run(self):\n        print(\"\u8dd1\")\n\n    def sleep(self):\n        print(\"\u7761\")\n\nclass Dog(Animal):\n\n    def eat(self):    #\u5bf9\u539f\u65b9\u6cd5\u8fdb\u884c\u4e86\u91cd\u5199\u8986\u76d6\n        super().eat()   #\u4fdd\u7559\u7236\u7c7b\u7684eat, \u5e76\u8fdb\u884c\u6269\u5c55\n        print(\"\u5403\u9aa8\u5934\")\n\nwangcai = Dog()  #\u521b\u5efa\u4e00\u4e2adog\u5bf9\u8c61\n\nwangcai.eat()   #dog\u7c7b\u8986\u76d6\u540e\u7684\u65b9\u6cd5<\/code><\/pre>\n\n\n\n
super()\u8868\u793a\u7236\u7c7b\u5bf9\u8c61, super().xxx \u8fd9\u662fpython3\u7279\u6709\u7684\u65b9\u5f0f,  \u5b83\u4f1a\u6309\u7167\u7ee7\u627f\u94fe, \u6309\u987a\u627e\u5230\u6700\u8fd1\u7684<\/strong>\u5c5e\u6027\u6216\u65b9\u6cd5<\/p>\n\n\n\n
ps:<\/strong> \u5bf9\u4e8epy2\u7248\u672c, \u4f7f\u7528 \u7236\u7c7b\u540d.\u65b9\u6cd5(self)<\/em> \u65b9\u5f0f\u8c03\u7528\u7236\u7c7b\u65b9\u6cd5, py3\u4ecd\u652f\u6301, \u4f46\u4e0d\u63a8\u8350<\/p>\n","protected":false},"excerpt":{"rendered":"
\u65b9\u6cd5\u7684\u91cd\u5199, \u6307\u7684\u662f\u5728\u5b50\u7c7b\u7ee7\u627f\u7236\u7c7b\u65f6, \u5b50\u7c7b\u53ef\u4ee5\u5bf9\u7236\u7c7b\u7684\u65b9\u6cd5\u8fdb\u884c\u91cd\u5199 \u91cd\u5199, \u4e5f\u53eb\u8986\u76d6, \u66f4\u901a\u7528\u7684\u8bf4\u6cd5\u662f, \u8986… \u7ee7\u7eed\u9605\u8bfb python\u65b9\u6cd5\u7684\u91cd\u5199<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[8],"tags":[],"_links":{"self":[{"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/posts\/98"}],"collection":[{"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/comments?post=98"}],"version-history":[{"count":0,"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/posts\/98\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/media?parent=98"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/categories?post=98"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/tags?post=98"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}