{"id":53073,"date":"2024-12-03T11:10:53","date_gmt":"2024-12-03T03:10:53","guid":{"rendered":"https:\/\/fwq.ai\/blog\/53073\/"},"modified":"2024-12-03T11:10:53","modified_gmt":"2024-12-03T03:10:53","slug":"javascript%ef%bc%9a%e5%a6%82%e4%bd%95%e6%9b%b4%e7%ae%80%e6%b4%81%e5%9c%b0%e5%88%9d%e5%a7%8b%e5%8c%96%e5%a4%9a%e4%b8%aa%e5%8f%98%e9%87%8f%e4%b8%banull%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/53073\/","title":{"rendered":"JavaScript\uff1a\u5982\u4f55\u66f4\u7b80\u6d01\u5730\u521d\u59cb\u5316\u591a\u4e2a\u53d8\u91cf\u4e3anull\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>JavaScript\uff1a\u5982\u4f55\u66f4\u7b80\u6d01\u5730\u521d\u59cb\u5316\u591a\u4e2a\u53d8\u91cf\u4e3anull\uff1f<\/h1>\n<p>\u5927\u5bb6\u597d\uff0c\u6211\u4eec\u53c8\u89c1\u9762\u4e86\u554a~\u672c\u6587<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aJavaScript\uff1a\u5982\u4f55\u66f4\u7b80\u6d01\u5730\u521d\u59cb\u5316\u591a\u4e2a\u53d8\u91cf\u4e3anull\uff1f\u300b<\/span>\u7684\u5185\u5bb9\u4e2d\u5c06\u4f1a\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u3002\u5982\u679c\u4f60\u6b63\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u76f8\u5173\u77e5\u8bc6\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\uff0c\u4ee5\u540e\u4f1a\u7ed9\u5927\u5bb6\u5e26\u6765\u66f4\u591a<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u76f8\u5173\u6587\u7ae0\uff0c\u5e0c\u671b\u6211\u4eec\u80fd\u4e00\u8d77\u8fdb\u6b65\uff01\u4e0b\u9762\u5c31\u5f00\u59cb\u672c\u6587\u7684\u6b63\u5f0f\u5185\u5bb9~<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241126\/173259977767455fe148edd.jpg\" class=\"aligncenter\" title=\"JavaScript\uff1a\u5982\u4f55\u66f4\u7b80\u6d01\u5730\u521d\u59cb\u5316\u591a\u4e2a\u53d8\u91cf\u4e3anull\uff1f\u63d2\u56fe\" alt=\"JavaScript\uff1a\u5982\u4f55\u66f4\u7b80\u6d01\u5730\u521d\u59cb\u5316\u591a\u4e2a\u53d8\u91cf\u4e3anull\uff1f\u63d2\u56fe\" \/><\/p>\n<h2>javascript\u7b80\u5316\u521d\u59cb\u5316\u591a\u4e2a\u53d8\u91cf\u4e3anull<\/h2>\n<p>\u5728\u65e9\u671f\u7684let\u58f0\u660e\u591a\u4e2a\u53d8\u91cf\u8bed\u6cd5\u4e2d\uff0c\u4f7f\u7528\u50cflet resourceid = uniqueno = unitname = null;\u8fd9\u6837\u7684\u5199\u6cd5\u6765\u521d\u59cb\u5316\u591a\u4e2a\u53d8\u91cf\u4e3anull\u662f\u5f88\u5e38\u89c1\u7684\u3002<\/p>\n<p>\u7136\u800c\uff0c\u968f\u7740\u6a21\u5f0f\u5339\u914d\u7684\u5f15\u5165\uff0c\u73b0\u5728\u53ef\u4ee5\u4f7f\u7528\u66f4\u7b80\u6d01\u548c\u66f4\u6613\u8bfb\u7684\u5199\u6cd5\uff0c\u5982\uff1a<\/p>\n<pre>let [resourceId, uniqueNo, unitName] = [null, null, null];<\/pre>\n<p>\u8be5\u8bed\u6cd5\u7b49\u6548\u4e8e\u65e7\u5199\u6cd5\uff0c\u4f46\u66f4\u6e05\u6670\u5730\u8868\u793a\u6570\u7ec4\u89e3\u6784\u5206\u914d\u5230\u7684\u53d8\u91cf\u3002\u901a\u8fc7\u5c06null\u503c\u653e\u5165\u65b9\u62ec\u53f7\u5185\uff0c\u4f60\u53ef\u4ee5\u4e00\u6b21\u6027\u521d\u59cb\u5316\u591a\u4e2a\u53d8\u91cf\u3002<\/p>\n<p>\u56e0\u6b64\uff0clet [resourceid, uniqueno, unitname] = [null, null, null];\u662f\u521d\u59cb\u5316\u591a\u4e2a\u53d8\u91cf\u4e3anull\u7684\u6700\u7b80\u4fbf\u548c\u63a8\u8350\u7684\u65b9\u5f0f\u3002<\/p>\n<p>\u672c\u7bc7\u5173\u4e8e\u300aJavaScript\uff1a\u5982\u4f55\u66f4\u7b80\u6d01\u5730\u521d\u59cb\u5316\u591a\u4e2a\u53d8\u91cf\u4e3anull\uff1f\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff01<\/p>\n<dl>\n<dt><\/dt>\n<dd>\n   Java \u7a0b\u5e8f\u91cd\u542f\u540e ClassNotFoundException \u9519\u8bef\u6d88\u5931\uff0c\u600e\u4e48\u56de\u4e8b\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>JavaScript\uff1a\u5982\u4f55\u66f4\u7b80\u6d01\u5730\u521d\u59cb\u5316\u591a\u4e2a\u53d8\u91cf\u4e3anull\uff1f \u5927\u5bb6\u597d\uff0c\u6211\u4eec\u53c8\u89c1\u9762\u4e86\u554a~\u672c\u6587\u300aJavaScript\uff1a\u5982\u4f55\u66f4\u7b80\u6d01\u5730\u521d\u59cb\u5316\u591a\u4e2a\u53d8\u91cf\u4e3anull\uff1f\u300b\u7684\u5185\u5bb9\u4e2d\u5c06\u4f1a\u6d89\u53ca\u5230\u7b49\u7b49\u3002\u5982\u679c\u4f60\u6b63\u5728\u5b66\u4e60\u6587\u7ae0\u76f8\u5173\u77e5\u8bc6\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\uff0c\u4ee5\u540e\u4f1a\u7ed9\u5927\u5bb6\u5e26\u6765\u66f4\u591a\u6587\u7ae0\u76f8\u5173\u6587\u7ae0\uff0c\u5e0c\u671b\u6211\u4eec\u80fd\u4e00\u8d77\u8fdb\u6b65\uff01\u4e0b\u9762\u5c31\u5f00\u59cb\u672c\u6587\u7684\u6b63\u5f0f\u5185\u5bb9~ javascript\u7b80\u5316\u521d\u59cb\u5316\u591a\u4e2a\u53d8\u91cf\u4e3anull \u5728\u65e9\u671f\u7684let\u58f0\u660e\u591a\u4e2a\u53d8\u91cf\u8bed\u6cd5\u4e2d\uff0c\u4f7f\u7528\u50cflet resourceid = uniqueno = unitname = null;\u8fd9\u6837\u7684\u5199\u6cd5\u6765\u521d\u59cb\u5316\u591a\u4e2a\u53d8\u91cf\u4e3anull\u662f\u5f88\u5e38\u89c1\u7684\u3002 \u7136\u800c\uff0c\u968f\u7740\u6a21\u5f0f\u5339\u914d\u7684\u5f15\u5165\uff0c\u73b0\u5728\u53ef\u4ee5\u4f7f\u7528\u66f4\u7b80\u6d01\u548c\u66f4\u6613\u8bfb\u7684\u5199\u6cd5\uff0c\u5982\uff1a let [resourceId, uniqueNo, unitName] = [null, null, null]; \u8be5\u8bed\u6cd5\u7b49\u6548\u4e8e\u65e7\u5199\u6cd5\uff0c\u4f46\u66f4\u6e05\u6670\u5730\u8868\u793a\u6570\u7ec4\u89e3\u6784\u5206\u914d\u5230\u7684\u53d8\u91cf\u3002\u901a\u8fc7\u5c06null\u503c\u653e\u5165\u65b9\u62ec\u53f7\u5185\uff0c\u4f60\u53ef\u4ee5\u4e00\u6b21\u6027\u521d\u59cb\u5316\u591a\u4e2a\u53d8\u91cf\u3002 \u56e0\u6b64\uff0clet [resourceid, uniqueno, unitname] = [null, null, null];\u662f\u521d\u59cb\u5316\u591a\u4e2a\u53d8\u91cf\u4e3anull\u7684\u6700\u7b80\u4fbf\u548c\u63a8\u8350\u7684\u65b9\u5f0f\u3002 \u672c\u7bc7\u5173\u4e8e\u300aJavaScript\uff1a\u5982\u4f55\u66f4\u7b80\u6d01\u5730\u521d\u59cb\u5316\u591a\u4e2a\u53d8\u91cf\u4e3anull\uff1f\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff01 Java \u7a0b\u5e8f\u91cd\u542f\u540e ClassNotFoundException \u9519\u8bef\u6d88\u5931\uff0c\u600e\u4e48\u56de\u4e8b\uff1f<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-53073","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/53073","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=53073"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/53073\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=53073"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=53073"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=53073"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}