{"id":2738,"date":"2023-11-14T14:26:31","date_gmt":"2023-11-14T06:26:31","guid":{"rendered":""},"modified":"2023-11-14T14:26:31","modified_gmt":"2023-11-14T06:26:31","slug":"\u9759\u6001\u53d8\u91cf\u548c\u5e38\u91cf\u53d8\u91cf","status":"publish","type":"post","link":"https:\/\/bianchenghao6.com\/2738.html","title":{"rendered":"\u9759\u6001\u53d8\u91cf\u548c\u5e38\u91cf\u53d8\u91cf"},"content":{"rendered":"
\n

\u9759\u6001\u53d8\u91cf\u548c\u5e38\u91cf\u53d8\u91cf<\/h1>\n<\/div>\n
\n \u6211\u4eec\u540c\u65f6\u4f7f\u7528\u4e86\u4e0d\u540c\u8bed\u8a00\u7684\u9759\u6001\u548c\u5e38\u91cf\u53d8\u91cf\u3002\u5728\u672c\u8282\u4e2d\uff0c\u6211\u4eec\u5c06\u63cf\u8ff0\u4e24\u4e2a\u53d8\u91cf\u4e4b\u95f4\u7684\u5dee\u5f02\u70b9\u3002\u8ba9\u6211\u4eec\u8ba8\u8bba\u4e00\u4e0b\u3002\n<\/div>\n

\u4ec0\u4e48\u662fJavaScript\u4e2d\u7684\u9759\u6001\u53d8\u91cf<\/h3>\n
\n \u9759\u6001\u53d8\u91cf\u662f\u5728\u7c7b\u4e2d\u4f7f\u7528\u7684\u7c7b\u5c5e\u6027\uff0c\u800c\u4e0d\u662f\u5728\u7c7b\u7684\u5b9e\u4f8b\u4e0a\u4f7f\u7528\u3002\u8be5\u53d8\u91cf\u5b58\u50a8\u5728\u5185\u5b58\u7684\u6570\u636e\u6bb5\u533a\u57df\u4e2d\uff0c\u5e76\u4e14\u5728\u7c7b\u4e2d\u521b\u5efa\u7684\u6bcf\u4e2a\u5b9e\u4f8b\u4e4b\u95f4\u5171\u4eab\u76f8\u540c\u7684\u503c\u3002\u8981\u4f7f\u7528\u9759\u6001\u53d8\u91cf\uff0c\u6211\u4eec\u4f7f\u7528static\u5173\u952e\u5b57\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528static\u5173\u952e\u5b57\u751f\u6210\u5177\u6709\u7c7b\uff0c\u8fd0\u7b97\u7b26\uff0c\u5c5e\u6027\u7684\u9759\u6001\u503c\uff0c\u9759\u6001\u51fd\u6570\uff0c\u5e76\u7528\u4f5c\u5e94\u7528\u7a0b\u5e8f\u6216\u7f51\u7ad9\u7684\u5b9e\u7528\u7a0b\u5e8f\u51fd\u6570\u3002\u9759\u6001\u53d8\u91cf\u7684\u503c\u662f\u5728\u8fd0\u884c\u65f6\u8bbe\u7f6e\u7684\uff0c\u662f\u4e00\u79cd\u5168\u5c40\u503c\uff0c\u53ef\u7528\u4e8e\u6307\u5b9a\u7c7b\u7684\u5b9e\u4f8b\u3002\n<\/div>\n

\u4ec0\u4e48\u662fJavaScript\u4e2d\u7684Const\u53d8\u91cf<\/h3>\n
\n const\u53d8\u91cf\u662f\u5177\u6709\u56fa\u5b9a\u503c\u7684\u53d8\u91cf\uff0c\u5728\u6574\u4e2a\u7a0b\u5e8f\u4e2d\u4fdd\u6301\u4e0d\u53d8\u3002 const\u53d8\u91cf\u7684\u4e00\u4e2a\u7279\u6027\u662f\u6211\u4eec\u65e0\u6cd5\u5728\u6574\u4e2a\u7a0b\u5e8f\u4e2d\u66f4\u6539\u6216\u4fee\u6539\u5176\u503c\u3002\u8fd9\u662f\u56e0\u4e3a\u4e00\u65e6\u6211\u4eec\u521b\u5efa\u4e00\u4e2aconst\u503c\uff0c\u7f16\u8bd1\u5668\u5c31\u4f1a\u88ab\u544a\u77e5\u8be5\u503c\u662f\u56fa\u5b9a\u7684\uff0c\u5e94\u907f\u514d\u88ab\u7a0b\u5e8f\u5458\u4f7f\u7528\u3002\u56e0\u6b64\uff0c\u6bcf\u5f53\u7a0b\u5e8f\u5458\u5c1d\u8bd5\u4fee\u6539const\u503c\u65f6\uff0c\u90fd\u4f1a\u663e\u793a\u4e00\u4e2a\u9519\u8bef\uff0c\u6307\u51fa\u65e0\u6cd5\u66f4\u6539const\u503c\u3002\u8981\u4f7f\u7528const\u53d8\u91cf\uff0c\u6211\u4eec\u4f7f\u7528'const'\u5173\u952e\u5b57\u548c\u8f93\u5165\u503c\u3002\n<\/div>\n

JavaScript\u4e2d\u7684\u9759\u6001\u4e0e\u5e38\u91cf<\/h2>\n
\n \u6709\u4ee5\u4e0b\u533a\u522b\u70b9\u8ba9\u6211\u4eec\u4e86\u89e3\u4e24\u8005\u4e4b\u95f4\u7684\u533a\u522b\uff1a\n<\/div>\n\n\n\n\n\n\n\n\n\n
\u9759\u6001<\/td>\n Const <\/td>\n<\/tr>\n
static\u5173\u952e\u5b57\u7528\u4e8e\u5728javascript\u7c7b\u7a0b\u5e8f\u4e2d\u5b9a\u4e49\u9759\u6001\u5c5e\u6027\u548c\u65b9\u6cd5\u3002<\/td>\n const\u5173\u952e\u5b57\u7528\u4e8e\u5b9a\u4e49\u53d8\u91cf\u7684\u5e38\u91cf\u503c\u3002<\/td>\n<\/tr>\n
\u53ea\u80fd\u5728\u7c7b\u5b9a\u4e49\u4e0a\u8bbf\u95eestatic\u5173\u952e\u5b57\u3002\u4e3a\u4e86\u8bbf\u95ee\u975e\u9759\u6001\u65b9\u6cd5\u7684static\u5173\u952e\u5b57\uff0c\u9700\u8981\u4f7f\u7528\u7c7b\u540d\u6765\u8c03\u7528\u5b83\u4eec\u3002\u4f46\u662f\uff0c\u8981\u5728\u53e6\u4e00\u4e2a\u9759\u6001\u65b9\u6cd5\u4e2d\u8c03\u7528\u9759\u6001\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u6b64\u5173\u952e\u5b57\u3002<\/td>\n\u53ef\u4ee5\u5728\u5168\u5c40\u6216\u672c\u5730\u8bbf\u95eeconst\u503c\uff0c\u4f46\u662f\u5168\u5c40\u5e38\u91cf\u6c38\u8fdc\u4e0d\u80fd\u662f\u7a97\u53e3\u5bf9\u8c61\u5c5e\u6027\u3002 <\/td>\n<\/tr>\n
\u9759\u6001\u65b9\u6cd5\u662f\u7528\u4e8e\u521b\u5efa\u6216\u514b\u9686\u5bf9\u8c61\u7684\u5b9e\u7528\u7a0b\u5e8f\u529f\u80fd\u3002<\/td>\n const\u53d8\u91cf\u7528\u4e8e\u58f0\u660e\u5176\u503c\u4e0d\u80fd\u66f4\u6539\u7684\u5e38\u6570\u6216\u56fa\u5b9a\u503c\u3002<\/td>\n<\/tr>\n
JavaScript\u9759\u6001\u6807\u8bb0\u6709\u4e00\u4e2a\u79f0\u4e3a\" static\"\u5173\u952e\u5b57\u7684\u5173\u952e\u5b57\u3002<\/td>\n JavaScript const\u7528\u4e00\u4e2a\u79f0\u4e3a'const'\u5173\u952e\u5b57\u7684\u5173\u952e\u5b57\u6807\u8bb0\uff0c\u5728\u8be5\u5173\u952e\u5b57\u4e2d\uff0c\u6211\u4eec\u58f0\u660e\u4e00\u4e2aconst\u53d8\u91cf\u5e76\u4f7f\u7528\u5e38\u91cf\u503c\u5bf9\u5176\u8fdb\u884c\u521d\u59cb\u5316\u3002<\/td>\n<\/tr>\n
JavaScript static\u4e5f\u53ef\u4ee5\u4e0e\u7c7b\u548c\u65b9\u6cd5\u4e00\u8d77\u4f7f\u7528\u3002<\/td>\n JavaScript const\u4e5f\u53ef\u4ee5\u4e0e\u5bf9\u8c61\u548c\u6570\u7ec4\u4e00\u8d77\u4f7f\u7528\u3002<\/td>\n<\/tr>\n
\u53ef\u4ee5\u91cd\u65b0\u5206\u914d\u9759\u6001\u53d8\u91cf\u7684\u503c\u3002<\/td>\n const\u53d8\u91cf\u7684\u503c\u4e0d\u80fd\u91cd\u65b0\u5206\u914d\u3002\u4f46\u662f\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u5141\u8bb8\u7684\u4e0d\u540c\u5757\u8303\u56f4\u5185\u91cd\u65b0\u58f0\u660econst\u53d8\u91cf\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n \u4ee5\u4e0a\u662f\u4e00\u4e9b\u533a\u522b\u70b9\uff0c\u5b83\u4eec\u5c06\u4f7f\u6211\u4eec\u7406\u89e3\u4e24\u4e2aJavaScript\u5173\u952e\u5b57\u7684\u5de5\u4f5c\u65b9\u5f0f\u3002\u9664\u4e86\u8fd9\u4e9b\u7406\u8bba\u4e0a\u7684\u5dee\u5f02\u63cf\u8ff0\u4e4b\u5916\uff0c\u8ba9\u6211\u4eec\u770b\u4e00\u4e2a\u793a\u4f8b\uff0c\u901a\u8fc7\u5b83\u4eec\u6211\u4eec\u53ef\u4ee5\u4e86\u89e3static\u548cconst\u53d8\u91cf\u7684\u4f7f\u7528\u548c\u5de5\u4f5c\u3002\n<\/div>\n

\u4f7f\u7528JavaScript Static <\/h3>\n
\n \u4ee5\u4e0b\u662f\u5728\u7c7b\u4e2d\u4f7f\u7528JavaScript\u9759\u6001\u5173\u952e\u5b57\u7684\u5b9e\u9645\u5b9e\u73b0\uff1a\n<\/div>\n
\n
 <html>
 <head>
     <title> JavaScript Static<\/title>
 <\/head>
 <body>
     <script>
       class A {
 static staticMethod() {
 return \"Calling Static method.\";
    }
       }
   document.write<\/span>(A.staticMethod<\/span>());
   <\/script>
 <\/body>
 <\/html>
 <\/span><\/code><\/pre>\n<\/div>\n
\n  \u5728\u4e0a\u9762\u7684\u7a0b\u5e8f\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u4e00\u4e2a\u9759\u6001\u65b9\u6cd5\u662f\u5728\u4e00\u4e2a\u7c7b\u4e2d\u521b\u5efa\u7684\uff0c\u5f53\u5b83\u88ab\u8c03\u7528\u65f6\uff0c\u5b83\u4f1a\u5728\u8be5\u7c7b\u7684\u9759\u6001\u65b9\u6cd5\u4e2d\u8c03\u7528\u8be5\u8bed\u53e5\u3002\u4ee5\u4e0b\u663e\u793a\u4e86\u4ee5\u4e0b\u8f93\u51fa\uff1a\n<\/div>\n
\u9759\u6001\u53d8\u91cf\u548c\u5e38\u91cf\u53d8\u91cf_https:\/\/bianchenghao6.com_\u3010JavaScript \u57fa\u7840\u3011_\u7b2c1\u5f20 <\/p>\n
\u4f7f\u7528JavaScript const <\/h3>\n
\n  \u4ee5\u4e0b\u662f\u4f7f\u7528JavaScript const\u5173\u952e\u5b57\u7684\u5b9e\u9645\u5b9e\u73b0\uff1a\n<\/div>\n
\n
 <html>
 <head>
 <title> JavaScript Static<\/title>
 <\/head>
 <body>
      <script>
 const value= 8;
  try {
    value= 10;
 } 
      catch (e) {
   document.write<\/span>(e); 
 } \/\/will display a TypeError 
 document.write<\/span>(value);
     <\/script>
 <\/body>
 <\/html>
 <\/span><\/code><\/pre>\n<\/div>\n
\n  \u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u53ef\u4ee5\u770b\u5230const\u53d8\u91cf\u5206\u914d\u4e86\u4e00\u4e2a\u503c\uff0c\u4f46\u662f\u5f53\u6211\u4eec\u5c1d\u8bd5\u91cd\u65b0\u5206\u914d\u53e6\u4e00\u4e2a\u503c\u65f6\uff0c\u5c06\u5f15\u53d1\u9519\u8bef\uff0c\u8be5\u9519\u8bef\u8868\u660e\u88ab\u63cf\u8ff0\u4e3aconst\u7684\u503c\u4e0d\u80fd\u66f4\u6539\u3002\u56e0\u6b64\uff0c\u4ee5\u4e0a\u4ee3\u7801\u7684\u8f93\u51fa\u4e3a\uff1a\n<\/div>\n
\u9759\u6001\u53d8\u91cf\u548c\u5e38\u91cf\u53d8\u91cf_https:\/\/bianchenghao6.com_\u3010JavaScript \u57fa\u7840\u3011_\u7b2c2\u5f20 <\/p>\n
\n  \u5728\u672c\u8282\u4e2d\uff0c\u6211\u4eec\u7406\u89e3\u9759\u6001\u53d8\u91cf\u548cconst\u53d8\u91cf\u5177\u6709\u4e0d\u540c\u7684\u4f5c\u7528\uff0c\u5e76\u7528\u4e8e\u4e0d\u540c\u7684\u76ee\u7684\uff0c\u5176\u4e2d\u9759\u6001\u53d8\u91cf\u53ef\u7528\u4e8e\u7c7b\u65b9\u6cd5\u6216\u5c5e\u6027\uff0c\u800cconst\u53d8\u91cf\u7528\u4e8e\u521d\u59cb\u5316\u6570\u7ec4\u7684const\u503c\uff0c\u53d8\u91cf\u6216\u5bf9\u8c61\u3002\n<\/div>\n","protected":false},"excerpt":{"rendered":"\u9759\u6001\u53d8\u91cf\u548c\u5e38\u91cf\u53d8\u91cfzh-cn","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[179],"tags":[],"class_list":["post-2738","post","type-post","status-publish","format-standard","hentry","category-javascript-jc"],"_links":{"self":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts\/2738"}],"collection":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/comments?post=2738"}],"version-history":[{"count":0,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts\/2738\/revisions"}],"wp:attachment":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/media?parent=2738"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/categories?post=2738"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/tags?post=2738"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}