{"id":719,"date":"2022-10-06T22:53:19","date_gmt":"2022-10-06T14:53:19","guid":{"rendered":"https:\/\/qaqaq.top\/?p=719"},"modified":"2022-11-27T12:39:56","modified_gmt":"2022-11-27T04:39:56","slug":"%e9%9d%a2%e5%90%91%e5%af%b9%e8%b1%a1%e4%b8%ad-%e5%a4%8d%e4%b9%a0","status":"publish","type":"post","link":"https:\/\/qaqaq.top\/?p=719","title":{"rendered":"\u9762\u5411\u5bf9\u8c61(\u4e2d)-\u590d\u4e60"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>1. \u4ec0\u4e48\u662f\u591a\u6001\u6027\uff1f\u4ec0\u4e48\u662f\u865a\u62df\u65b9\u6cd5\u8c03\u7528\uff1f\r\n\r\n\u5bf9\u8c61\u7684\u591a\u6001\u6027\uff1a\u7236\u7c7b\u7684\u5f15\u7528\u6307\u5411\u5b50\u7c7b\u7684\u5bf9\u8c61\u3002\r\nPerson p = new Man();\r\n\r\np.eat();\r\n\u8c03\u7528\u65b9\u6cd5\u65f6\uff0c\u7f16\u8bd1\u65f6\u770b\u5de6\u8fb9\uff0c\u8fd0\u884c\u65f6\u770b\u53f3\u8fb9\u3002\r\n\r\n2. \u4e00\u4e2a\u7c7b\u53ef\u4ee5\u6709\u51e0\u4e2a\u76f4\u63a5\u7236\u7c7b\uff1f\uff08\u53ea\u6709\u4e00\u4e2a\uff09\r\n\u4e00\u4e2a\u7236\u7c7b\u53ef\u6709\u591a\u5c11\u4e2a\u5b50\u7c7b\uff1f\uff08\u591a\u4e2a\uff09\r\n\u5b50\u7c7b\u80fd\u83b7\u53d6\u76f4\u63a5\u7236\u7c7b\u7684\u7236\u7c7b\u4e2d\u7684\u7ed3\u6784\u5417\uff1f\uff08\u53ef\u4ee5\uff09\r\n\u5b50\u7c7b\u80fd\u5426\u83b7\u53d6\u7236\u7c7b\u4e2dprivate\u6743\u9650\u7684\u5c5e\u6027\u6216\u65b9\u6cd5\uff1f\uff08\u53ef\u4ee5\u7684\uff09\r\n\r\nA is a B\r\n\r\n3. \u65b9\u6cd5\u7684\u91cd\u5199(override\/overwrite)\u7684\u5177\u4f53\u89c4\u5219\u6709\u54ea\u4e9b\r\n\r\n\u65b9\u6cd5\u540d\u3001\u5f62\u53c2\u5217\u8868\u76f8\u540c\r\n\u6743\u9650\u4fee\u9970\u7b26 \u4e0d\u5c0f\u4e8e\u7236\u7c7b\u88ab\u91cd\u5199\u7684\u65b9\u6cd5\u4fee\u9970\u7b26\r\n\u8fd4\u56de\u503c \u7236\u7c7bvoid \u5b50\u7c7bvoid \u7236\u7c7bA\u7c7b\u578b \u5b50\u7c7bA\u7c7b\u578b\u6216A\u7c7b\u578b\u7684\u5b50\u7c7b \u7236\u7c7b\u57fa\u672c\u6570\u636e\u7c7b\u578b \u5b50\u7c7b\u5fc5\u987b\u662f\u76f8\u540c\u7684\u57fa\u672c\u6570\u636e\u7c7b\u578b\r\n\u629b\u51fa\u7684\u5f02\u5e38 \u4e0d\u5927\u4e8e\u7236\u7c7b\u88ab\u91cd\u5199\u7684\u65b9\u6cd5\u629b\u51fa\u7684\u5f02\u5e38\r\n\r\n4. super\u8c03\u7528\u6784\u9020\u5668\uff0c\u6709\u54ea\u4e9b\u5177\u4f53\u7684\u6ce8\u610f\u70b9\r\n\r\nthis(\u5f62\u53c2\u5217\u8868)\uff1a\u672c\u7c7b\u91cd\u8f7d\u7684\u5176\u5b83\u7684\u6784\u9020\u5668\r\nsuper(\u5f62\u53c2\u5217\u8868)\uff1a\u8c03\u7528\u7236\u7c7b\u4e2d\u6307\u5b9a\u7684\u6784\u9020\u5668\r\nn\u4e2a\u6784\u9020\u5668 \u6700\u591a n-1 \u4e2a\u7528 this \u6700\u5c11 1\u4e2a\u7528 super\r\n\r\n\r\n5. \u5728\u4e0b\u9762\u7684\u4ee3\u7801\u7ed3\u6784\u4e2d\uff1a\u4f7f\u7528\u5173\u952e\u5b57\uff1athis,super; \u65b9\u6cd5\u7684\u91cd\u5199;\u7ee7\u627f;<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33],"tags":[46],"class_list":["post-719","post","type-post","status-publish","format-standard","hentry","category-java-","tag-java"],"_links":{"self":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/719"}],"collection":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=719"}],"version-history":[{"count":1,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/719\/revisions"}],"predecessor-version":[{"id":720,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/719\/revisions\/720"}],"wp:attachment":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=719"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=719"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=719"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}