{"id":203743,"date":"2025-05-22T10:22:39","date_gmt":"2025-05-22T02:22:39","guid":{"rendered":"https:\/\/server.hk\/cnblog\/203743\/"},"modified":"2025-05-22T10:22:39","modified_gmt":"2025-05-22T02:22:39","slug":"android-%e5%bc%80%e5%8f%91%e4%b8%ad-%e6%ba%90%e8%87%aa-null-%e7%9a%84%e9%94%99%e8%af%af%ef%bc%9a%e4%b8%ba%e4%bb%80%e4%b9%88%e6%a3%80%e6%9f%a5-null-%e6%95%b0%e7%bb%84%e9%95%bf","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/203743\/","title":{"rendered":"Android \u5f00\u53d1\u4e2d \u201c\u6e90\u81ea null \u7684\u9519\u8bef\u201d\uff1a\u4e3a\u4ec0\u4e48\u68c0\u67e5 null \u6570\u7ec4\u957f\u5ea6\u4f1a\u51fa\u9519\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Android \u5f00\u53d1\u4e2d \u201c\u6e90\u81ea null \u7684\u9519\u8bef\u201d\uff1a\u4e3a\u4ec0\u4e48\u68c0\u67e5 null \u6570\u7ec4\u957f\u5ea6\u4f1a\u51fa\u9519\uff1f<\/h1>\n<p>\u73cd\u60dc\u65f6\u95f4\uff0c\u52e4\u594b\u5b66\u4e60\uff01\u4eca\u5929\u7ed9\u5927\u5bb6\u5e26\u6765<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aAndroid \u5f00\u53d1\u4e2d \u201c\u6e90\u81ea null \u7684\u9519\u8bef\u201d\uff1a\u4e3a\u4ec0\u4e48\u68c0\u67e5 null \u6570\u7ec4\u957f\u5ea6\u4f1a\u51fa\u9519\uff1f\u300b<\/span>\uff0c\u6b63\u6587\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\uff0c\u5982\u679c\u4f60\u6b63\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\uff0c\u6216\u8005\u662f\u5bf9<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u6709\u7591\u95ee\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u6211\uff01\u540e\u9762\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u5185\u5bb9\u7684\uff0c\u5e0c\u671b\u90fd\u80fd\u5e2e\u5230\u6b63\u5728\u5b66\u4e60\u7684\u5927\u5bb6\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241120\/1732114832673df990c0f4b.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>android \u5f00\u53d1\u4e2d\u6e90\u81ea null \u7684\u9519\u8bef<\/strong><\/p>\n<p><strong>\u95ee\u9898\uff1a<\/strong><\/p>\n<p>\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u65f6\u51fa\u73b0\u9519\u8bef\uff1a<\/p>\n<pre>public static byte[] setgaszero3=null;\nif (mainactivity.setgaszero3 != null || mainactivity.setgaszero3.length != 0)<\/pre>\n<p>\u5f53 mainactivity.setgaszero3 \u4e3a null \u65f6\uff0c\u9519\u8bef\u6d88\u606f\u4e3a\u201c\u6e90\u7801\u4e0e\u5b57\u8282\u7801\u4e0d\u5339\u914d\u201d\u3002\u5982\u4f55\u89e3\u51b3\u6b64\u95ee\u9898\uff1f<\/p>\n<p><strong>\u7b54\u6848\uff1a<\/strong><\/p>\n<p>\u9519\u8bef\u4e0d\u662f\u6e90\u81ea\u7a7a\u6307\u9488\uff0c\u800c\u662f\u6e90\u81ea\u5bf9 null \u6570\u7ec4\u5143\u7d20\u7684\u957f\u5ea6\u68c0\u67e5\u3002\u6b63\u786e\u7684\u4ee3\u7801\u5e94\u8be5\u662f\uff1a<\/p>\n<pre>if (MainActivity.setGaszero3 != null &amp;&amp; MainActivity.setGaszero3.length != 0)<\/pre>\n<p>\u5728\u8fd9\u4e2a\u4fee\u590d\u4e2d\uff0c\u6211\u4eec\u6dfb\u52a0\u4e86\u4e00\u4e2a\u989d\u5916\u7684\u68c0\u67e5\uff0c\u4ee5\u786e\u4fdd mainactivity.setgaszero3 \u4e0d\u4e3a null\uff0c\u7136\u540e\u518d\u68c0\u67e5\u5176\u957f\u5ea6\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u672c\u6587\u7684\u5168\u90e8\u5185\u5bb9\u4e86\uff0c\u662f\u5426\u6709\u987a\u5229\u5e2e\u52a9\u4f60\u89e3\u51b3\u95ee\u9898\uff1f\u82e5\u662f\u80fd\u7ed9\u4f60\u5e26\u6765\u5b66\u4e60\u4e0a\u7684\u5e2e\u52a9\uff0c\u8bf7\u5927\u5bb6\u591a\u591a\u652f\u6301\uff01\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u4e5f\u53ef\u5173\u6ce8\u516c\u4f17\u53f7\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Android \u5f00\u53d1\u4e2d \u201c\u6e90\u81ea &#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-203743","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203743","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=203743"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203743\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=203743"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=203743"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=203743"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}