{"id":31367,"date":"2022-12-15T05:41:25","date_gmt":"2023-08-03T16:15:13","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90%e5%85%b3%e4%ba%8ejava%e6%9d%a1%e4%bb%b6%e8%af%ad%e5%8f%a5%e3%80%91\/"},"modified":"2025-08-12T23:40:57","modified_gmt":"2025-08-12T15:40:57","slug":"%e3%80%90%e5%85%b3%e4%ba%8ejava%e6%9d%a1%e4%bb%b6%e8%af%ad%e5%8f%a5%e3%80%91","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90%e5%85%b3%e4%ba%8ejava%e6%9d%a1%e4%bb%b6%e8%af%ad%e5%8f%a5%e3%80%91\/","title":{"rendered":"\u3010\u5173\u4e8eJava\u6761\u4ef6\u8bed\u53e5\u3011"},"content":{"rendered":"<p>\u56e0\u4e3a\u6211\u73b0\u5728\u6b63\u5728\u72ec\u81ea\u5b66\u4e60Java\uff0c\u6240\u4ee5\u8fd9\u662f\u4e00\u4e2a\u4e3a\u4e86\u81ea\u6211\u5b66\u4e60\u800c\u53d1\u5e03\u7684\u5e16\u5b50\u3002<\/p>\n<h2>\u5728\u6761\u4ef6\u8bed\u53e5\u4e2d\uff0c\u4f7f\u7528 &#8220;==&#8221; \u800c\u4e0d\u662f &#8221; = &#8220;\u3002<\/h2>\n<p>\u5f53\u521d\u7684\u5b66\u4e60\u8005\u5bb9\u6613\u72af\u7684\u9519\u8bef\u662f\u5728\u7f16\u5199\u6761\u4ef6\u8868\u8fbe\u5f0f\u65f6\u4f7f\u7528&#8221;==&#8221;\u3002\u4f8b\u5982\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"err\">\u25cb<\/span> <span class=\"n\">initial<\/span> <span class=\"o\">==<\/span> <span class=\"s\">\"\u7530\u4e2d\"<\/span>\r\n<span class=\"err\">\u2716\ufe0f<\/span> <span class=\"n\">initial<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"\u7530\u4e2d\"<\/span>\r\n<\/code><\/pre>\n<h2>\u6bd4\u8f83\u6587\u672c\u5b57\u7b26\u4e32\u65f6\u7684\u5199\u6cd5<\/h2>\n<p>\u5728Java\u4e2d\uff0c\u5f53\u5728\u6761\u4ef6\u8bed\u53e5\u4e2d\u6bd4\u8f83String\u7c7b\u578b\u7684\u53d8\u91cf\u6216\u5b57\u7b26\u4e32\u65f6\uff0c\u9700\u8981\u4f7f\u7528\u7279\u5b9a\u7684\u5199\u6cd5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"err\">\u25cb<\/span> <span class=\"k\">if<\/span> <span class=\"o\">(<\/span><span class=\"n\">str<\/span><span class=\"o\">.<\/span><span class=\"na\">equals<\/span><span class=\"o\">(<\/span><span class=\"s\">\"\u5915\u65e5\"<\/span><span class=\"o\">)){....}<\/span>\r\n<span class=\"err\">\u2716\ufe0f<\/span> <span class=\"k\">if<\/span> <span class=\"o\">(<\/span><span class=\"err\">\u3000<\/span><span class=\"n\">str<\/span> <span class=\"o\">==<\/span> <span class=\"s\">\"\u5915\u65e5\"<\/span><span class=\"o\">){....}<\/span>\r\n<\/code><\/pre>\n<p>\u5373\u4f7f\u4f7f\u7528`\u26a0\ufe0e\u4eee\u306b ==`\uff0c\u4e5f\u4e0d\u4f1a\u5bfc\u81f4\u7f16\u8bd1\u9519\u8bef\uff0c\u4f46\u6709\u65f6\u4f1a\u6267\u884c\u4e00\u4e9b\u5947\u602a\u7684\u3001\u6076\u610f\u7684\u52a8\u4f5c\u3002<\/p>\n<h2>Java\u7684\u806a\u660e\u8bdd\uff08\u77ed\u8def\u8bc4\u4f30\uff09<\/h2>\n<pre class=\"post-pre\"><code><span class=\"k\">if<\/span> <span class=\"o\">(<\/span><span class=\"n\">age<\/span> <span class=\"o\">&gt;=<\/span> <span class=\"mi\">18<\/span> <span class=\"o\">&amp;&amp;<\/span> <span class=\"n\">age<\/span> <span class=\"o\">==<\/span> <span class=\"mi\">5<\/span><span class=\"o\">){...}<\/span>\r\n<\/code><\/pre>\n<p>\u5982\u679c\u6ee1\u8db3\u4ee5\u4e0b\u6761\u4ef6\uff0c\u5f53age\u7684\u503c\u4e3a1\u65f6\uff0c<br \/>\n\u5728\u4ec5\u5bf9\u6761\u4ef6\u5f0f\u7684\u5de6\u8fb9\u8fdb\u884c\u8bc4\u4f30\u65f6\uff0c\u5c31\u53ef\u4ee5\u786e\u5b9a\u5176\u4e3afalse\uff0c\u56e0\u6b64\u53f3\u8fb9\u4f1a\u88ab\u5ffd\u7565\u3002<br \/>\n\u8fd9\u79cdJava\u7684\u884c\u4e3a\u79f0\u4e3a\u77ed\u8def\u8bc4\u4f30\u3002<\/p>\n<p>\u4ee5\u4e0a\u662f\u4eca\u5929\u7684\u704c\u8f93\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u56e0\u4e3a\u6211\u73b0\u5728\u6b63\u5728\u72ec\u81ea\u5b66\u4e60Java\uff0c\u6240\u4ee5\u8fd9\u662f\u4e00\u4e2a\u4e3a\u4e86\u81ea\u6211\u5b66\u4e60\u800c\u53d1\u5e03\u7684\u5e16\u5b50\u3002 \u5728\u6761\u4ef6\u8bed\u53e5\u4e2d\uff0c\u4f7f\u7528 &#8220;== [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-31367","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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