{"id":270,"date":"2021-01-19T14:42:58","date_gmt":"2021-01-19T06:42:58","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/java\/?p=270"},"modified":"2021-01-19T19:33:36","modified_gmt":"2021-01-19T11:33:36","slug":"switch-case-%e8%af%ad%e5%8f%a5","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/java\/post-270.html","title":{"rendered":"switch — case \u8bed\u53e5"},"content":{"rendered":"\n

switch — case \u8bed\u53e5\u662f\u53e6\u4e00\u79cd\u9009\u62e9\u5224\u65ad\u8bed\u53e5<\/p>\n\n\n\n

1.\u8bed\u6cd5<\/h5>\n\n\n\n
switch(\u88ab\u68c0\u6d4b\u6570\u636e){\n  case \u5e38\u91cf\u503c1: {\u8bed\u53e5\u4f531;} break;\n  case \u5e38\u91cf\u503c2: {\u8bed\u53e5\u4f532;} break;\n  case \u5e38\u91cf\u503c3: {\u8bed\u53e5\u4f533;} break;\n  ...\n  default: {\u8bed\u53e5\u4f53n+1;}break;\n}<\/code><\/pre>\n\n\n\n
2.\u88ab\u68c0\u6d4b\u6570\u636e<\/h5>\n\n\n\n
\u8be5\u68c0\u6d4b\u91cf\uff0c\u53ef\u4ee5\u662f “\u53d8\u91cf” \uff0c\u4e5f\u53ef\u4ee5\u662f “\u8868\u8fbe\u5f0f”<\/p>\n\n\n\n
\u68c0\u6d4b\u91cf\u7684\u6570\u636e\u7c7b\u578b\uff1a<\/p>\n\n\n\n
  1. byte<\/li>
  2. short<\/li>
  3. int<\/li>
  4. char<\/li>
  5. String  — jdk1.7\u4ee5\u4e0a<\/li>
  6. \u679a\u4e3e\u7c7b\u578b<\/li><\/ol>\n\n\n\n
    3.case \u5173\u952e\u5b57<\/h5>\n\n\n\n
    case \u5173\u952e\u5b57\u5fc5\u987b\u548c “\u5e38\u91cf\u503c” \u6709\u7a7a\u683c<\/p>\n\n\n\n
    “\u5e38\u91cf\u503c” \u53ef\u4ee5\u4e00\u6b21\u6709\u591a\u4e2a\uff0c\u4e2d\u95f4\u7528\u9017\u53f7(,)\u9694\u5f00, <\/p>\n\n\n\n
    \u6bcf\u4e2a “\u5e38\u91cf\u503c” \u4e0d\u53ef\u91cd\u590d<\/p>\n\n\n\n
    case \u5173\u952e\u5b57\u4ee5 \u5192\u53f7(:) \u7ed3\u675f<\/p>\n\n\n\n
    \u5f53\u68c0\u6d4b\u91cf\u7684\u503c\uff0c\u5bf9\u5e94case \u4e2d\u7684\u503c\uff0c\u5c31\u6267\u884c\u5b83\u540e\u9762\u7684 “\u8bed\u53e5\u4f53” <\/p>\n\n\n\n
    4.break \u5173\u952e\u5b57<\/h5>\n\n\n\n
    \u5f53\u7b26\u5408\u67d0\u4e2a case \u65f6\uff0c\u6267\u884c\u5b8c\u5b83\u5bf9\u5e94\u7684 “\u8bed\u53e5\u4f53” \uff0c\u8fd9\u65f6\u5b83\u7ee7\u7eed\u5f80\u4e0b\u6267\u884c<\/p>\n\n\n\n
    \u60f3\u8981\u4e2d\u65ad\u5e76\u9000\u51faswtich\uff0c\u6b64\u65f6\u9700\u8981 break;<\/p>\n\n\n\n
    5.default \u5173\u952e\u5b57<\/h5>\n\n\n\n
    default \u5173\u952e\u5b57\u53ef\u4ee5\u7701\u7565<\/p>\n\n\n\n
    default \u5173\u952e\u5b57\u7684\u4f4d\u7f6e\u53ef\u4ee5\u653e\u4efb\u610f\u4f4d\u7f6e\uff0c\u63a8\u8350\u653e\u6700\u540e<\/p>\n\n\n\n
    \u82e5\u6240\u6709\u7684 case \u90fd\u4e0d\u6ee1\u8db3\u65f6\uff0c\u4f1a\u6267\u884c default \u5bf9\u5e94\u7684 “\u8bed\u53e5\u4f53”<\/p>\n","protected":false},"excerpt":{"rendered":"
    switch — case \u8bed\u53e5\u662f\u53e6\u4e00\u79cd\u9009\u62e9\u5224\u65ad\u8bed\u53e5 1.\u8bed\u6cd5 2.\u88ab\u68c0\u6d4b\u6570\u636e \u8be5\u68c0\u6d4b\u91cf\uff0c\u53ef\u4ee5\u662f … \u7ee7\u7eed\u9605\u8bfb switch — case \u8bed\u53e5<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[17],"tags":[],"_links":{"self":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/270"}],"collection":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/comments?post=270"}],"version-history":[{"count":0,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/270\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/media?parent=270"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/categories?post=270"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/tags?post=270"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}