{"id":639,"date":"2022-10-02T12:28:41","date_gmt":"2022-10-02T04:28:41","guid":{"rendered":"https:\/\/qaqaq.top\/?p=639"},"modified":"2022-11-27T12:39:58","modified_gmt":"2022-11-27T04:39:58","slug":"%e9%9d%a2%e5%90%91%e5%af%b9%e8%b1%a1%e4%b8%8a-this%e8%b0%83%e7%94%a8%e5%b1%9e%e6%80%a7%e5%92%8c%e6%96%b9%e6%b3%95%e3%80%81this%e8%b0%83%e7%94%a8%e6%9e%84%e9%80%a0%e5%99%a8","status":"publish","type":"post","link":"https:\/\/qaqaq.top\/?p=639","title":{"rendered":"\u9762\u5411\u5bf9\u8c61(\u4e0a)-this\u8c03\u7528\u5c5e\u6027\u548c\u65b9\u6cd5\u3001this\u8c03\u7528\u6784\u9020\u5668"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>package top.qaqaq.java.P233;\r\n\/*\r\n * this\u5173\u952e\u5b57\u7684\u4f7f\u7528\uff1a\r\n * 1. this\u53ef\u4ee5\u7528\u6765\u4fee\u9970\u3001\u8c03\u7528\uff1a\u5c5e\u6027\u3001\u65b9\u6cd5\u3001\u6784\u9020\u5668\r\n * \r\n * 2. this\u4fee\u9970\u5c5e\u6027\u548c\u65b9\u6cd5\uff1a\r\n * \t\tthis\u7406\u89e3\u4e3a\uff1a\u5f53\u524d\u5bf9\u8c61 \u6216 \u5f53\u524d\u6b63\u5728\u521b\u5efa\u7684\u5bf9\u8c61\r\n * \r\n * \t2.1\t\u5728\u7c7b\u7684\u65b9\u6cd5\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\"this.\u5c5e\u6027\" \u6216 \"this.\u65b9\u6cd5\"\u7684\u65b9\u5f0f\uff0c\u8c03\u7528\u5f53\u524d\u5bf9\u8c61\u5c5e\u6027\u6216\u65b9\u6cd5\u3002\u4f46\u662f\uff0c\r\n * \t\t\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u90fd\u9009\u62e9\u7701\u7565\"this.\"\u3002\u7279\u6b8a\u60c5\u51b5\u4e0b\uff0c\u5982\u679c\u65b9\u6cd5\u7684\u5f62\u53c2\u548c\u7c7b\u7684\u5c5e\u6027\u540c\u540d\u65f6\uff0c\u6211\u4eec\u5fc5\u987b\u663e\u5f0f\r\n * \t\t\u7684\u4f7f\u7528\"this.\u53d8\u91cf\"\u7684\u65b9\u5f0f\uff0c\u8868\u660e\u6b64\u53d8\u91cf\u662f\u5c5e\u6027\uff0c\u800c\u975e\u5f62\u53c2\u3002\r\n * \r\n * \t2.2 \u5728\u7c7b\u7684\u6784\u9020\u5668\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\"this.\u5c5e\u6027\" \u6216 \"this.\u65b9\u6cd5\"\u7684\u65b9\u5f0f\uff0c\u8c03\u7528\u5f53\u524d\u6b63\u5728\u521b\u5efa\u7684\u5bf9\u8c61\u5c5e\u6027\u6216\u65b9\u6cd5\u3002\r\n * \t\t\u4f46\u662f\uff0c\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u90fd\u9009\u62e9\u7701\u7565\"this.\"\u3002\u7279\u6b8a\u60c5\u51b5\u4e0b\uff0c\u5982\u679c\u6784\u9020\u5668\u7684\u5f62\u53c2\u548c\u7c7b\u7684\u5c5e\u6027\u540c\u540d\u65f6\uff0c\u6211\u4eec\u5fc5\u987b\u663e\u5f0f\r\n * \t\t\u7684\u4f7f\u7528\"this.\u53d8\u91cf\"\u7684\u65b9\u5f0f\uff0c\u8868\u660e\u6b64\u53d8\u91cf\u662f\u5c5e\u6027\uff0c\u800c\u975e\u5f62\u53c2\u3002\r\n * \r\n * \t3.\tthis\u8c03\u7528\u6784\u9020\u5668\r\n * \t\t\u2460 \u6211\u4eec\u5728\u7c7b\u7684\u6784\u9020\u5668\u4e2d\uff0c\u53ef\u4ee5\u663e\u5f0f\u7684\u4f7f\u7528\"this(\u5f62\u53c2\u5217\u8868)\"\u65b9\u5f0f\uff0c\u8c03\u7528\u672c\u7c7b\u4e2d\u6307\u5b9a\u7684\u7684\u5176\u4ed6\u6784\u9020\u5668\r\n * \t\t\u2461 \u6784\u9020\u5668\u4e2d\u4e0d\u80fd\u901a\u8fc7\"this(\u5f62\u53c2\u5217\u8868)\"\u65b9\u5f0f\u8c03\u7528\u81ea\u5df1\r\n * \t\t\u2462 \u5982\u679c\u4e00\u4e2a\u7c7b\u4e2d\u6709n\u4e2a\u6784\u9020\u5668\uff0c\u5219\u6700\u591a\u6709n - 1\u6784\u9020\u5668\u4e2d\u4f7f\u7528\u4e86\"this(\u5f62\u53c2\u5217\u8868)\"\r\n * \t\t\u2463 \u89c4\u5b9a\uff1a\"this(\u5f62\u53c2\u5217\u8868)\"\u5fc5\u987b\u58f0\u660e\u5728\u5f53\u524d\u6784\u9020\u5668\u7684\u9996\u884c\r\n * \t\t\u2464 \u6784\u9020\u5668\u5185\u90e8\uff0c\u6700\u591a\u53ea\u80fd\u58f0\u660e\u4e00\u4e2a\"this(\u5f62\u53c2\u5217\u8868)\"\uff0c\u7528\u6765\u8c03\u7528\u5176\u4ed6\u7684\u6784\u9020\u5668\r\n * \r\n * \r\n *\/\r\n\r\npublic class PersonTest {\r\n\t\r\n\tpublic static void main(String&#91;] args) {\r\n\t\t\r\n\t\tPerson p1 = new Person();\r\n\t\t\r\n\t\tp1.setAge(1);\r\n\t\tSystem.out.println(p1.getAge());\r\n\t\t\r\n\t\tp1.eat();\r\n\t\t\r\n\t\tSystem.out.println();\r\n\t\t\r\n\t\tPerson p2 = new Person(\"Jerry\", 20);\r\n\t\tSystem.out.println(p2.getAge());\r\n\t\t\r\n\t\t\r\n\t}\r\n\r\n}\r\n\r\nclass Person{\r\n\t\r\n\tprivate String name;\r\n\tprivate int age;\r\n\t\r\n\tpublic Person() {\r\n\t\t\r\n\/\/\t\tthis.eat();\r\n\t\tString info = \"Person\u521d\u59cb\u5316\u65f6\uff0c\u9700\u8981\u8003\u8651\u5982\u4e0b\u76841\uff0c2\uff0c3\uff0c4...(\u517140\u884c\u4ee3\u7801)\";\r\n\t\tSystem.out.println(info);\r\n\t}\r\n\t\r\n\tpublic Person(String name) {\r\n\t\tthis();\r\n\t\tthis.name = name;\r\n\t\t\r\n\t}\r\n\t\r\n\tpublic Person(int age) {\r\n\t\tthis();\r\n\t\tthis.age = age;\r\n\t\t\r\n\t}\r\n\t\r\n\tpublic Person(String name,int age) {\r\n\t\tthis(age);\r\n\t\tthis.name = name;\r\n\t\t\/\/this.age = age;\r\n\t\t\/\/Person\u521d\u59cb\u5316\u65f6\uff0c\u9700\u8981\u8003\u8651\u5982\u4e0b\u76841\uff0c2\uff0c3\uff0c4...(\u517140\u884c\u4ee3\u7801)\r\n\t}\r\n\t\r\n\tpublic void setName(String name) {\r\n\t\tthis.name = name;\r\n\t}\r\n\t\r\n\tpublic String getName() {\r\n\t\treturn this.name;\r\n\t}\r\n\t\r\n\tpublic void setAge(int age) {\r\n\t\tthis.age = age;\r\n\t}\r\n\t\r\n\tpublic int getAge() {\r\n\t\treturn this.age;\r\n\t}\r\n\t\r\n\tpublic void eat() {\r\n\t\tSystem.out.println(\"\u4eba\u5403\u996d\");\r\n\t\tthis.study();\r\n\t}\r\n\t\r\n\tpublic void study() {\r\n\t\tSystem.out.println(\"\u4eba\u5b66\u4e60\");\r\n\t}\r\n\t\r\n}\r\n<\/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":[8],"tags":[46],"class_list":["post-639","post","type-post","status-publish","format-standard","hentry","category-java-code","tag-java"],"_links":{"self":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/639"}],"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=639"}],"version-history":[{"count":1,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/639\/revisions"}],"predecessor-version":[{"id":640,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/639\/revisions\/640"}],"wp:attachment":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=639"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=639"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=639"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}