{"id":53,"date":"2021-08-23T14:38:04","date_gmt":"2021-08-23T06:38:04","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/javav2\/?p=53"},"modified":"2021-08-23T15:14:36","modified_gmt":"2021-08-23T07:14:36","slug":"java%e4%b9%8bstatic%e5%85%b3%e9%94%ae%e5%ad%97","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/javav2\/post-53.html","title":{"rendered":"java\u4e4bstatic\u5173\u952e\u5b57"},"content":{"rendered":"\n<p>\u5728\u4e00\u4e2a\u7c7b\u4e2d\uff0c\u5982\u679c\u6b64\u7c7b\u5bf9\u8c61\u5171\u540c\u62e5\u6709\u4e00\u4e9b\u8d44\u6e90\u5982\u4f55\u8868\u793a\u5462\uff1f\u6bd4\u5982\u201c\u5f20\u4e09\u201d\u548c\u201c\u674e\u56db\u201d\u540c\u5c5e\u4e8e\u4eba\u7c7b\uff0c\u5171\u540c\u62e5\u670910\u4e2a\u82f9\u679c\uff0c\u90a3\u4e48\u6211\u4eec\u4e0d\u80fd\u7b80\u5355\u5199int apple=10;\u4f5c\u4e3a\u4eba\u7c7b\u7684\u6210\u5458\u5c5e\u6027\uff0c\u800c\u5fc5\u987b\u52a0\u4e00\u4e2astatic\u5173\u952e\u5b57<\/p>\n\n\n\n<p>static\u5173\u952e\u5b57\u53ef\u4ee5\u4fee\u9970\u6210\u5458\u5c5e\u6027\u3001\u6210\u5458\u65b9\u6cd5\u3001\u6210\u5458\u4ee3\u7801\u5757\uff0c\u88abstatic\u4fee\u9970\u540e\uff0c\u5206\u522b\u53eb\u505a<\/p>\n\n\n\n<ul><li>\u7c7b\u5c5e\u6027\uff08\u6216\u9759\u6001\u5c5e\u6027\uff09<\/li><li>\u7c7b\u65b9\u6cd5 \uff08\u9759\u6001\u65b9\u6cd5\uff09<\/li><li>\u7c7b\u4ee3\u7801\u5757\uff08\u9759\u6001\u4ee3\u7801\u5757\uff09<\/li><\/ul>\n\n\n\n<p>\u5728\u88abstatic\u4fee\u9970\u540e\uff0c\u8be5\u5c5e\u6027\u3001\u65b9\u6cd5\uff0c\u7531\u8be5\u7c7b\u6240\u62e5\u6709\u3002<\/p>\n\n\n\n<h2>\u8c03\u7528\u65b9\u5f0f<\/h2>\n\n\n\n<p>\u53ef\u4ee5\u901a\u8fc7\u7c7b\u540d.\u5c5e\u6027\uff08\u6216\u65b9\u6cd5\uff09\u8c03\u7528<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class Human {\n    public static int apple = 10;  \/\/ \u4eba\u7c7b\u5171\u6709\u7684\n    public int banana = 10;  \/\/ \u4eba\u7c7b\u5bf9\u8c61\u7279\u6709\u7684\n\n    public static void main(String&#91;] args) {\n\n        System.out.println(Human.apple);  \/\/ \u4e0d\u9700\u8981\u5b9e\u4f8b\u5316\u5bf9\u8c61\u5c31\u53ef\u4ee5\u8c03\u7528\n\n        System.out.println(apple);  \/\/ \u7c7b\u7684\u5185\u90e8\u53ef\u4ee5\u76f4\u63a5\u8c03\u7528\u9759\u6001\u65b9\u6cd5\n\n        Human zs = new Human();\n\n        System.out.println(zs.apple);  \/\/ \u53ef\u4ee5\u5bf9\u8c61\u540d\u8c03\u7528\n    }\n}<\/code><\/pre>\n\n\n\n<p>\u53ef\u4ee5\u4f7f\u7528 \u5bf9\u8c61\u540d.\u5c5e\u6027\uff08\u6216\u65b9\u6cd5\uff09\u8c03\u7528\uff0c\u4f46\u662f\u4e0d\u63a8\u8350\uff0c\u8fd9\u6837\u5728\u9605\u8bfb\u65f6\u5f88\u5bb9\u6613\u8bef\u89e3\u4e3a\u6210\u5458\u53d8\u91cf\u3002<\/p>\n\n\n\n<p>\u5728\u540c\u4e00\u4e2a\u7c7b\u4e2d\uff0c\uff08\u88abstatic\u4fee\u9970\u540e\uff09\u4efb\u610f\u5730\u65b9\u5747\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u540d\u79f0\u8c03\u7528\u3002<\/p>\n\n\n\n<p>\u5982\u4f55\u8bc1\u660estatic\u4fee\u9970\u7684\u7531\u7c7b\u6240\u62e5\u6709\uff1f\u8bf7\u53c2\u8003\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class Human {\n    public static int apple = 10;  \/\/ \u4eba\u7c7b\u5171\u6709\u7684\n    public int banana = 10;  \/\/ \u4eba\u7c7b\u5bf9\u8c61\u7279\u6709\u7684\n\n    public Human(){\n        Human.apple--;\n        this.banana--;\n    }\n\n    public static void main(String&#91;] args) {\n\n        Human zs = new Human();\n        Human ls = new Human();\n\n        System.out.println(zs.banana);\n        System.out.println(ls.banana);\n\n        System.out.println(apple);\n    }\n}<\/code><\/pre>\n\n\n\n<p>\u7a0b\u5e8f\u6267\u884c\u7ed3\u679c\uff1a<\/p>\n\n\n\n<ul><li>9<\/li><li>9<\/li><li>8<\/li><\/ul>\n\n\n\n<p>\u6ce8\u610f\uff0c\u4e0d\u53ef\u4ee5\u4f7f\u7528 this.\u5c5e\u6027\uff08\u6216\u65b9\u6cd5\uff09\u8c03\u7528\uff0c\u5373\u4e0d\u53ef\u4ee5\u4f7f\u7528this\u3001super\u5173\u952e\u5b57<\/p>\n\n\n\n<h2>\u9759\u6001\u4ee3\u7801\u52a0\u8f7d<\/h2>\n\n\n\n<p>\u9759\u6001\u4ee3\u7801\u52a0\u8f7d\u4f18\u5148\u4e8e\u975e\u9759\u6001\u65b9\u6cd5\u3002\u4f60\u53ef\u4ee5\u8fd9\u4e48\u7406\u89e3\uff0c\u9759\u6001\u4ee3\u7801\u662f\u5c5e\u4e8e\u7c7b\u7684\uff0c\u800c\u975e\u9759\u6001\u662f\u5c5e\u4e8e\u5bf9\u8c61\u7684\uff0c\u7c7b\u5728\u88ab\u52a0\u8f7d\u65f6\u5c31\u4f1a\u7ed9\u9759\u6001\u4ee3\u7801\u521b\u5efa\u5185\u5b58\u7a7a\u95f4\uff0c\u800c\u975e\u9759\u6001\u5fc5\u987b\u5b9e\u4f8b\u5316\u5bf9\u8c61\u3002<\/p>\n\n\n\n<p>\u90a3\u4e48\u9759\u6001\u65b9\u6cd5\u4e0d\u53ef\u4ee5\u8c03\u7528\u975e\u9759\u6001\u65b9\u6cd5\uff0c\u56e0\u4e3a\u6b64\u65f6\u975e\u9759\u6001\u65b9\u6cd5\u8fd8\u672a\u88ab\u52a0\u8f7d\u5230\u5185\u5b58\uff0c\u53cd\u8fc7\u6765\u5374\u662f\u53ef\u4ee5\u7684\uff0c\u4f8b\u5982\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class Human {\n    public static int apple = 10;  \/\/ \u4eba\u7c7b\u5171\u6709\u7684\n    public int banana = 10;  \/\/ \u4eba\u7c7b\u5bf9\u8c61\u7279\u6709\u7684\n\n    public void sub(){\n        add();\n    }\n\n    public static void add(){\n        sub();  \/\/ \u7f16\u8bd1\u62a5\u9519\n    }\n\n}<\/code><\/pre>\n\n\n\n<h2>\u9759\u6001\u4ee3\u7801\u5757<\/h2>\n\n\n\n<p>\u9759\u6001\u4ee3\u7801\u5757\uff0c\u5728\u7c7b\u88ab\u521d\u59cb\u5316\u65f6\uff08\u672c\u8282\u4e0d\u8ba8\u8bba\u6b64\u95ee\u9898\uff0c\u5047\u8bbe\u88ab\u8c03\u7528\uff09\uff0c\u5c31\u4f1a\u89e6\u53d1\u3002<\/p>\n\n\n\n<p>\u9759\u6001\u4ee3\u7801\u5757\u53ea\u4f1a\u6267\u884c\u4e00\u6b21\uff0c\u6210\u5458\u4ee3\u7801\u5757\u5728\u6bcf\u6b21\u5b9e\u4f8b\u5316\u5747\u4f1a\u6267\u884c\uff0c\u53c2\u8003\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class Human {\n    public static int apple = 10;  \/\/ \u4eba\u7c7b\u5171\u6709\u7684\n    public int banana = 10;  \/\/ \u4eba\u7c7b\u5bf9\u8c61\u7279\u6709\u7684\n\n    {\n        System.out.println(1);\n    }\n\n    static {\n        System.out.println(2);\n    }\n\n    public static void main(String&#91;] args) {\n        Human zs = new Human();\n        Human ls = new Human();\n    }\n}<\/code><\/pre>\n\n\n\n<p>\u7a0b\u5e8f\u6267\u884c\u7ed3\u679c\uff1a<\/p>\n\n\n\n<ul><li>2<\/li><li>1<\/li><li>1<\/li><\/ul>\n\n\n\n<p>\u4e0a\u8ff0\u4ee3\u7801\u80fd\u8bc1\u660e2\u4ef6\u4e8b\uff0c\u2460\u9759\u6001\u4ee3\u7801\u4f18\u5148\u4e8e\u975e\u9759\u6001\u2461\u9759\u6001\u4ee3\u7801\u53ea\u4f1a\u6267\u884c\u4e00\u6b21<\/p>\n\n\n\n<h2>\u65b9\u6cd5\u533a<\/h2>\n\n\n\n<p>\u65b9\u6cd5\u533a\uff0c\u53c8\u53eb\u9759\u6001\u533a\uff08\u5b9e\u9645\u5e76\u4e0d\u7b49\u4ef7\uff0c\u4ec5\u7c97\u7565\u4ecb\u7ecd\uff09\uff0c\u4e3b\u8981\u5305\u542b\u4e86\u7c7b\u4fe1\u606f\uff0c\u4ee5\u53ca\u5b58\u653e\u4e86\u88abstatic\u4fee\u9970\u7684\u53d8\u91cf\u7b49\u8d44\u6e90<\/p>\n\n\n\n<p>\u8fd9\u91cc\u5e76\u4e0d\u5bf9\u65b9\u6cd5\u533a\u8fdb\u884c\u8be6\u7ec6\u7684\u8ba8\u8bba\uff0c\u4ec5\u8868\u793astatic\u4fee\u9970\u53d8\u91cf\u5728\u5185\u5b58\u4e2d\u7684\u4f4d\u7f6e\u3002<\/p>\n\n\n\n<p>\u65b9\u6cd5\u533a\u662f\u7ebf\u7a0b\u5171\u4eab\u7684\uff0c\u5f00\u9500\u6bd4\u8f83\u5927\uff0c\u6545\u65b9\u6cd5\u533a\u5bf9\u6bcf\u4e2a\u7c7b\u5b58\u653e\u7684\u5185\u5bb9\u5927\u5c0f\u8fdb\u884c\u4e86\u9650\u5236\uff0c\u4e00\u4e2a\u7c7b\u4e2d\u88abstatic\u4fee\u9970\u7684\u4ee3\u7801\u7f16\u8bd1\u800c\u6210\u7684\u5b57\u8282\u7801\u4e0d\u5f97\u8d85\u8fc764kb\u3002<\/p>\n\n\n\n<p>\u8fd9\u91cc\u8981\u8868\u8fbe\u7684\u610f\u601d\u662f\uff0c\u8981\u5408\u7406\u7684\u4f7f\u7528static\u800c\u4e0d\u8981\u6ee5\u7528\uff0c\u5426\u5219\u4e0d\u4f46\u4e0d\u80fd\u51cf\u5c11\u5185\u5b58\u4f7f\u7528\uff0c\u53cd\u800c\u589e\u52a0\u5f00\u9500\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u4e00\u4e2a\u7c7b\u4e2d\uff0c\u5982\u679c\u6b64\u7c7b\u5bf9\u8c61\u5171\u540c\u62e5\u6709\u4e00\u4e9b\u8d44\u6e90\u5982\u4f55\u8868\u793a\u5462\uff1f\u6bd4\u5982\u201c\u5f20\u4e09\u201d\u548c\u201c\u674e\u56db\u201d\u540c\u5c5e\u4e8e\u4eba\u7c7b\uff0c\u5171\u540c\u62e5\u670910\u4e2a\u82f9\u679c\uff0c\u90a3\u4e48&hellip; <a href=\"https:\/\/www.52dixiaowo.com\/javav2\/post-53.html\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">java\u4e4bstatic\u5173\u952e\u5b57<\/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\/53"}],"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=53"}],"version-history":[{"count":1,"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/posts\/53\/revisions"}],"predecessor-version":[{"id":54,"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/posts\/53\/revisions\/54"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/media?parent=53"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/categories?post=53"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/tags?post=53"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}