{"id":49,"date":"2021-08-20T10:45:47","date_gmt":"2021-08-20T02:45:47","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/javav2\/?p=49"},"modified":"2021-08-23T09:20:58","modified_gmt":"2021-08-23T01:20:58","slug":"java%e4%b8%adthis%e5%85%b3%e9%94%ae%e5%ad%973%e7%a7%8d%e4%bd%9c%e7%94%a8","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/javav2\/post-49.html","title":{"rendered":"java\u4e2dthis\u5173\u952e\u5b573\u79cd\u4f5c\u7528"},"content":{"rendered":"\n<p>java\u4e2d\u7684\u53d8\u91cf\u662f\u6709\u4f5c\u7528\u57df\u7684\uff0c\u90a3\u4e48\u5c40\u90e8\u53d8\u91cf\u548c\u6210\u5458\u53d8\u91cf\u51b2\u7a81\u65f6\uff0c\u600e\u4e48\u53d6\u6210\u5458\u53d8\u91cf\uff1f<\/p>\n\n\n\n<p>\u7531\u6b64\u95ee\u9898\uff0cjava\u5f15\u5165this\u5173\u952e\u5b57\uff0cthis\u67093\u79cd\u4f5c\u7528<\/p>\n\n\n\n<h2>1.\u8868\u793a\u6210\u5458\u53d8\u91cf(\u65b9\u6cd5)<\/h2>\n\n\n\n<p>\u8bed\u6cd5\u683c\u5f0f\u4e3a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>this.\u53d8\u91cf\u540d;  \/\/\uff08\u6216\u65b9\u6cd5\u540d)<\/code><\/pre>\n\n\n\n<p>\u4f8b\u5982\uff0c\u628a\u5c40\u90e8\u53d8\u91cf\u7684 name \u8d4b\u503c\u7ed9 \u6210\u5458\u53d8\u91cf\u7684 name<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class Person {\n\tprivate String name; \/\/\u6210\u5458\u53d8\u91cf\u7684 name\n\tpublic void setName(String name) {  \/\/\u5c40\u90e8\u53d8\u91cf\u7684 name\n\t\tthis.name = name;\n\t}\n}<\/code><\/pre>\n\n\n\n<p>\u5f53\u6210\u5458\u53d8\u91cf(\u6216\u65b9\u6cd5) \u548c \u5c40\u90e8\u53d8\u91cf(\u6216\u65b9\u6cd5) \u91cd\u540d\u65f6\uff0c\u7528 this.\u53d8\u91cf\u540d \u8868\u793a\u6210\u5458\u53d8\u91cf<\/p>\n\n\n\n<h2>2.\u8c03\u7528\u5176\u4ed6\u6784\u9020\u65b9\u6cd5<\/h2>\n\n\n\n<p>\u8bed\u6cd5\u683c\u5f0f\u4e3a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>this(\u53c2\u6570);<\/code><\/pre>\n\n\n\n<p>\u4f8b\u5982\uff0c\u5728 person \u7c7b\u7684\u7a7a\u53c2\u6784\u9020\u4e2d\uff0c\u8c03\u7528\u5176\u4ed6\u6784\u9020<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class Person {\n\tprivate String name;\n\tpublic Person() {\n\t\tthis(\"zhangsan\");\n \/\/\u5728\u7a7a\u53c2\u6784\u9020\u91cc\uff0c\u8c03\u7528\u5176\u4ed6\u6784\u9020\n\t}\n\tpublic Person(String name) {\n\t\tthis.name = name;\n\t}\n}<\/code><\/pre>\n\n\n\n<p>this\u8c03\u7528\u6784\u9020\u65b9\u6cd5\u65f6\uff0c\u5fc5\u987b\u5728\u6784\u9020\u65b9\u6cd5\u7684\u7b2c\u4e00\u884c\uff0c\u56e0\u4e3a\u4f1a\u5148\u6267\u884c\u6784\u9020\u65b9\u6cd5\uff08\u521d\u59cb\u5316\uff09\uff0c\u4e14\u4e0d\u80fd\u4e0e super() \u540c\u7528<\/p>\n\n\n\n<h2>3.\u7528\u4f5c\u53c2\u6570\u548c\u8fd4\u56de\u503c<\/h2>\n\n\n\n<p>\u7528\u4f5c\u53c2\u6570\u65f6, \u4ec5\u628athis\u5f53\u4f5c\u53c2\u6570\u5373\u53ef\uff0c\u4f8b\u5982 abc(this)<\/p>\n\n\n\n<p>\u7528\u4f5c\u8fd4\u56de\u503c\u65f6\uff0c\u8bed\u6cd5\u683c\u5f0f\u4e3a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>return this;<\/code><\/pre>\n\n\n\n<p>this \u7684\u503c\uff0c\u7ed1\u5b9a\u7684\u662f\u5f53\u524d\u8c03\u7528\u5b83\u7684\u5bf9\u8c61\uff0c\u8c01\u8c03\u7528\u5b83\uff0cthis \u5c31\u7ed1\u5b9a\u8c01<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class Person {\n\tpublic Person returnMyself() {\n\t\treturn this;\n\t}\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>java\u4e2d\u7684\u53d8\u91cf\u662f\u6709\u4f5c\u7528\u57df\u7684\uff0c\u90a3\u4e48\u5c40\u90e8\u53d8\u91cf\u548c\u6210\u5458\u53d8\u91cf\u51b2\u7a81\u65f6\uff0c\u600e\u4e48\u53d6\u6210\u5458\u53d8\u91cf\uff1f \u7531\u6b64\u95ee\u9898\uff0cjava\u5f15\u5165this\u5173&hellip; <a href=\"https:\/\/www.52dixiaowo.com\/javav2\/post-49.html\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">java\u4e2dthis\u5173\u952e\u5b573\u79cd\u4f5c\u7528<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[4],"tags":[],"_links":{"self":[{"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/posts\/49"}],"collection":[{"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/comments?post=49"}],"version-history":[{"count":0,"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/posts\/49\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/media?parent=49"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/categories?post=49"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/tags?post=49"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}