{"id":31370,"date":"2022-11-02T04:22:30","date_gmt":"2023-11-04T11:30:10","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ejava%e7%9a%84switch%e8%af%ad%e5%8f%a5-2\/"},"modified":"2025-08-12T23:41:49","modified_gmt":"2025-08-12T15:41:49","slug":"%e5%85%b3%e4%ba%8ejava%e7%9a%84switch%e8%af%ad%e5%8f%a5-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ejava%e7%9a%84switch%e8%af%ad%e5%8f%a5-2\/","title":{"rendered":"\u5173\u4e8eJava\u7684switch\u8bed\u53e5"},"content":{"rendered":"<p>\u7531\u4e8e\u6211\u7684Java\u7684switch\u8bed\u53e5\u9047\u5230\u4e86\u56f0\u96be\uff0c\u6240\u4ee5\u6211\u628a\u5b83\u8bb0\u5f55\u4e0b\u6765\u4f5c\u4e3a\u5907\u5fd8\u5f55\u3002<\/p>\n<p>\u4f7f\u7528for\u5faa\u73af\u548cswitch\u8bed\u53e5\u7f16\u5199\u4e00\u4e2a\u7a0b\u5e8f\uff0c\u901a\u8fc7\u547d\u4ee4\u884c\u53c2\u6570\u4f20\u9012\u86cb\u7cd5\u548c\u6570\u91cf\uff0c\u7136\u540e\u663e\u793a\u603b\u91d1\u989d\u3002<\/p>\n<p>\u9996\u5148\uff0c\u5c06\u5546\u54c1\u7684\u4fe1\u606f\u8d4b\u503c\u7ed9\u53d8\u91cf\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c1\">\/\/\u5546\u54c1\u540d\u3068\u4fa1\u683c\u3092\u5909\u6570\u306b\u4ee3\u5165<\/span>\r\n\t\t<span class=\"nc\">String<\/span> <span class=\"n\">cake1<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"\u30b7\u30e7\u30fc\u30c8\u30b1\u30fc\u30ad\"<\/span><span class=\"o\">;<\/span>\r\n\t\t<span class=\"kt\">int<\/span> <span class=\"n\">cakePrice1<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">320<\/span><span class=\"o\">;<\/span>\r\n\t\t<span class=\"nc\">String<\/span> <span class=\"n\">cake2<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"\u30e2\u30f3\u30d6\u30e9\u30f3\"<\/span><span class=\"o\">;<\/span>\r\n\t\t<span class=\"kt\">int<\/span> <span class=\"n\">cakePrice2<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">350<\/span><span class=\"o\">;<\/span>\r\n\t\t<span class=\"nc\">String<\/span> <span class=\"n\">cake3<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"\u30c1\u30e7\u30b3\u30ec\u30fc\u30c8\u30b1\u30fc\u30ad\"<\/span><span class=\"o\">;<\/span>\r\n\t\t<span class=\"kt\">int<\/span> <span class=\"n\">cakePrice3<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">370<\/span><span class=\"o\">;<\/span>\r\n\t\t<span class=\"nc\">String<\/span> <span class=\"n\">cake4<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"\u3044\u3061\u3054\u306e\u30bf\u30eb\u30c8\"<\/span><span class=\"o\">;<\/span>\r\n\t\t<span class=\"kt\">int<\/span> <span class=\"n\">cakePrice4<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">400<\/span><span class=\"o\">;<\/span>\r\n\t\t<span class=\"nc\">String<\/span> <span class=\"n\">cake5<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"\u30c1\u30fc\u30ba\u30b1\u30fc\u30ad\"<\/span><span class=\"o\">;<\/span>\r\n\t\t<span class=\"kt\">int<\/span> <span class=\"n\">cakePrice5<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">300<\/span><span class=\"o\">;<\/span>\r\n<\/code><\/pre>\n<p>\u4f7f\u7528switch\u8bed\u53e5\u68c0\u7d22\u4e0b\u4e00\u4e2a\u8f93\u5165\u7684\u86cb\u7cd5\u4ef7\u683c\uff0c\u5e76\u5728for\u5faa\u73af\u4e2d\u91cd\u590d\u6dfb\u52a0\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nc\">String<\/span> <span class=\"n\">order<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"\"<\/span><span class=\"o\">;<\/span>\r\n\t\t<span class=\"k\">for<\/span><span class=\"o\">(<\/span><span class=\"kt\">int<\/span> <span class=\"n\">i<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">0<\/span><span class=\"o\">;<\/span> <span class=\"n\">i<\/span> <span class=\"o\">&lt;<\/span> <span class=\"n\">args<\/span><span class=\"o\">.<\/span><span class=\"na\">length<\/span><span class=\"o\">;<\/span> <span class=\"n\">i<\/span> <span class=\"o\">+=<\/span> <span class=\"mi\">2<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n\t\t\t<span class=\"n\">order<\/span> <span class=\"o\">=<\/span> <span class=\"n\">args<\/span><span class=\"o\">[<\/span><span class=\"n\">i<\/span><span class=\"o\">];<\/span>\r\n\t\t\t<span class=\"n\">price<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">0<\/span><span class=\"o\">;<\/span>     \r\n\t\t\t<span class=\"k\">switch<\/span><span class=\"o\">(<\/span><span class=\"n\">order<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n\t\t\t\t<span class=\"k\">case<\/span> <span class=\"nl\">cake1:<\/span>\r\n\t\t\t\t\t<span class=\"n\">price<\/span> <span class=\"o\">=<\/span> <span class=\"n\">cakePrice1<\/span> <span class=\"o\">*<\/span> <span class=\"nc\">Integer<\/span><span class=\"o\">.<\/span><span class=\"na\">parseInt<\/span><span class=\"o\">(<\/span><span class=\"n\">args<\/span><span class=\"o\">[<\/span><span class=\"n\">i<\/span><span class=\"o\">+<\/span><span class=\"mi\">1<\/span><span class=\"o\">]);<\/span>\r\n\t\t\t\t    <span class=\"n\">price<\/span> <span class=\"o\">+=<\/span> <span class=\"n\">price<\/span><span class=\"o\">;<\/span>\r\n\t\t\t\t    <span class=\"k\">break<\/span><span class=\"o\">;<\/span>\r\n\t\t\t\t<span class=\"k\">case<\/span> <span class=\"nl\">cake2:<\/span>\r\n\t\t\t\t\t<span class=\"n\">price<\/span> <span class=\"o\">=<\/span> <span class=\"n\">cakePrice2<\/span> <span class=\"o\">*<\/span> <span class=\"nc\">Integer<\/span><span class=\"o\">.<\/span><span class=\"na\">parseInt<\/span><span class=\"o\">(<\/span><span class=\"n\">args<\/span><span class=\"o\">[<\/span><span class=\"n\">i<\/span><span class=\"o\">+<\/span><span class=\"mi\">1<\/span><span class=\"o\">]);<\/span>\r\n\t\t\t\t    <span class=\"n\">price<\/span> <span class=\"o\">+=<\/span> <span class=\"n\">price<\/span><span class=\"o\">;<\/span>\r\n\t\t\t\t    <span class=\"k\">break<\/span><span class=\"o\">;<\/span>\r\n\t\t\t\t<span class=\"k\">case<\/span> <span class=\"nl\">cake3:<\/span>\r\n\t\t\t\t\t<span class=\"n\">price<\/span> <span class=\"o\">=<\/span> <span class=\"n\">cakePrice3<\/span> <span class=\"o\">*<\/span> <span class=\"nc\">Integer<\/span><span class=\"o\">.<\/span><span class=\"na\">parseInt<\/span><span class=\"o\">(<\/span><span class=\"n\">args<\/span><span class=\"o\">[<\/span><span class=\"n\">i<\/span><span class=\"o\">+<\/span><span class=\"mi\">1<\/span><span class=\"o\">]);<\/span>\r\n\t\t\t\t    <span class=\"n\">price<\/span> <span class=\"o\">+=<\/span> <span class=\"n\">price<\/span><span class=\"o\">;<\/span>\r\n\t\t\t\t    <span class=\"k\">break<\/span><span class=\"o\">;<\/span>\r\n\t\t\t\t<span class=\"k\">case<\/span> <span class=\"nl\">cake4:<\/span>\r\n\t\t\t\t\t<span class=\"n\">price<\/span> <span class=\"o\">=<\/span> <span class=\"n\">cakePrice4<\/span> <span class=\"o\">*<\/span> <span class=\"nc\">Integer<\/span><span class=\"o\">.<\/span><span class=\"na\">parseInt<\/span><span class=\"o\">(<\/span><span class=\"n\">args<\/span><span class=\"o\">[<\/span><span class=\"n\">i<\/span><span class=\"o\">+<\/span><span class=\"mi\">1<\/span><span class=\"o\">]);<\/span>\r\n\t\t\t\t    <span class=\"n\">price<\/span> <span class=\"o\">+=<\/span> <span class=\"n\">price<\/span><span class=\"o\">;<\/span>\r\n\t\t\t\t    <span class=\"k\">break<\/span><span class=\"o\">;<\/span>\r\n\t\t\t\t<span class=\"k\">case<\/span> <span class=\"nl\">cake5:<\/span>\r\n\t\t\t\t\t<span class=\"n\">price<\/span> <span class=\"o\">=<\/span> <span class=\"n\">cakePrice5<\/span> <span class=\"o\">*<\/span> <span class=\"nc\">Integer<\/span><span class=\"o\">.<\/span><span class=\"na\">parseInt<\/span><span class=\"o\">(<\/span><span class=\"n\">args<\/span><span class=\"o\">[<\/span><span class=\"n\">i<\/span><span class=\"o\">+<\/span><span class=\"mi\">1<\/span><span class=\"o\">]);<\/span>\r\n\t\t\t\t    <span class=\"n\">price<\/span> <span class=\"o\">+=<\/span> <span class=\"n\">price<\/span><span class=\"o\">;<\/span>\r\n\t\t\t\t    <span class=\"k\">break<\/span><span class=\"o\">;<\/span>\r\n\t\t\t<span class=\"o\">}<\/span>\r\n\t\t<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u7136\u800c\uff0c\u5373\u4f7f\u6267\u884c\u4e0a\u8ff0\u64cd\u4f5c\uff0ccase\u8bed\u53e5\u4e5f\u5fc5\u987b\u662f\u4e00\u4e2a\u5e38\u91cf\u8868\u8fbe\u5f0f\uff0c\u5426\u5219\u4f1a\u51fa\u73b0\u9519\u8bef\u3002<\/p>\n<p>\u7531\u4e8e\u58f0\u660e\u53d8\u91cf\u7684\u9519\u8bef\uff0c\u7ed3\u679c\u5982\u4e0b\u6240\u793a\u3002<br \/>\n\u8fd9\u610f\u5473\u7740\u5fc5\u987b\u662f\u5e38\u91cf\u8868\u8fbe\u5f0f\uff0c\u610f\u5473\u7740\u5fc5\u987b\u4e0d\u53ef\u66f4\u6539\u3002<br \/>\n\u6362\u53e5\u8bdd\u8bf4\uff0c\u91cd\u65b0\u58f0\u660e\u53d8\u91cf\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<pre class=\"post-pre\"><code>        <span class=\"kd\">final<\/span> <span class=\"nc\">String<\/span> <span class=\"no\">CAKE1<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"\u30b7\u30e7\u30fc\u30c8\u30b1\u30fc\u30ad\"<\/span><span class=\"o\">;<\/span>\r\n\t\t<span class=\"kt\">int<\/span> <span class=\"n\">cakePrice1<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">320<\/span><span class=\"o\">;<\/span>\r\n\t\t<span class=\"kd\">final<\/span> <span class=\"nc\">String<\/span> <span class=\"no\">CAKE2<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"\u30e2\u30f3\u30d6\u30e9\u30f3\"<\/span><span class=\"o\">;<\/span>\r\n\t\t<span class=\"kt\">int<\/span> <span class=\"n\">cakePrice2<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">350<\/span><span class=\"o\">;<\/span>\r\n\t\t<span class=\"kd\">final<\/span> <span class=\"nc\">String<\/span> <span class=\"no\">CAKE3<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"\u30c1\u30e7\u30b3\u30ec\u30fc\u30c8\u30b1\u30fc\u30ad\"<\/span><span class=\"o\">;<\/span>\r\n\t\t<span class=\"kt\">int<\/span> <span class=\"n\">cakePrice3<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">370<\/span><span class=\"o\">;<\/span>\r\n\t\t<span class=\"kd\">final<\/span> <span class=\"nc\">String<\/span> <span class=\"no\">CAKE4<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"\u3044\u3061\u3054\u306e\u30bf\u30eb\u30c8\"<\/span><span class=\"o\">;<\/span>\r\n\t\t<span class=\"kt\">int<\/span> <span class=\"n\">cakePrice4<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">400<\/span><span class=\"o\">;<\/span>\r\n\t\t<span class=\"kd\">final<\/span> <span class=\"nc\">String<\/span> <span class=\"no\">CAKE5<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"\u30c1\u30fc\u30ba\u30b1\u30fc\u30ad\"<\/span><span class=\"o\">;<\/span>\r\n\t\t<span class=\"kt\">int<\/span> <span class=\"n\">cakePrice5<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">300<\/span><span class=\"o\">;<\/span>\r\n<\/code><\/pre>\n<p>\u8fd9\u4e2a\u9519\u8bef\u5df2\u7ecf\u89e3\u51b3\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7531\u4e8e\u6211\u7684Java\u7684switch\u8bed\u53e5\u9047\u5230\u4e86\u56f0\u96be\uff0c\u6240\u4ee5\u6211\u628a\u5b83\u8bb0\u5f55\u4e0b\u6765\u4f5c\u4e3a\u5907\u5fd8\u5f55\u3002 \u4f7f\u7528for\u5faa\u73af\u548cswitch\u8bed\u53e5 [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-31370","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) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u5173\u4e8eJava\u7684switch\u8bed\u53e5 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" 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