{"id":64357,"date":"2025-05-03T17:54:56","date_gmt":"2025-05-03T09:54:56","guid":{"rendered":"https:\/\/fwq.ai\/blog\/64357\/"},"modified":"2025-05-03T17:54:56","modified_gmt":"2025-05-03T09:54:56","slug":"java%e4%b8%adif%e6%9d%a1%e4%bb%b6%e7%9a%84%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e7%94%a8-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/64357\/","title":{"rendered":"java\u4e2dif\u6761\u4ef6\u7684\u6570\u7ec4\u600e\u4e48\u7528"},"content":{"rendered":"

\n java \u4e2d if \u8bed\u53e5\u652f\u6301\u4f7f\u7528\u6570\u7ec4\u5b58\u50a8\u6761\u4ef6\uff1a\u5c06\u6761\u4ef6\u5b58\u50a8\u5728\u6570\u7ec4\u4e2d\u3002\u5728 if \u8bed\u53e5\u4e2d\u6bd4\u8f83\u6570\u7ec4\u5143\u7d20\u4e0e\u7279\u5b9a\u6761\u4ef6\u3002\u4f18\u70b9\uff1a\u53ef\u8bfb\u6027\u3001\u7075\u6d3b\u6027\u3001\u907f\u514d\u5d4c\u5957 if \u8bed\u53e5\u3002\u6ce8\u610f\uff1a\u786e\u4fdd\u6761\u4ef6\u6b63\u786e\u3001\u6ce8\u610f\u7d22\u5f15\u8303\u56f4\u3001\u8003\u8651\u4f7f\u7528\u5176\u4ed6\u6570\u636e\u7ed3\u6784\u3002\n<\/p><\/blockquote>\n

\"java\u4e2dif\u6761\u4ef6\u7684\u6570\u7ec4\u600e\u4e48\u7528\u63d2\u56fe\"<\/p>\n

Java \u4e2d if \u6761\u4ef6\u7684\u6570\u7ec4\u7528\u6cd5<\/strong><\/p>\n

\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u6570\u7ec4\u6765\u5b58\u50a8\u6761\u4ef6\uff0c\u5e76\u5728 if \u8bed\u53e5\u4e2d\u4f7f\u7528\u8fd9\u4e9b\u6761\u4ef6\u3002\u8fd9\u662f\u4e00\u79cd\u7b80\u5316\u590d\u6742\u6761\u4ef6\u6d4b\u8bd5\u5e76\u63d0\u9ad8\u7684\u65b9\u6cd5\u3002<\/p>\n

\u7528\u6cd5\uff1a<\/strong><\/p>\n

if (array[index] == condition) {\n  \/\/ \u4ee3\u7801\u5757\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u793a\u4f8b\uff1a<\/strong><\/p>\n
\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
\u5047\u8bbe\u4f60\u6709\u5982\u4e0b\u6570\u7ec4\uff1a<\/p>\n
String[] colors = {\"red\", \"green\", \"blue\"};<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u73b0\u5728\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528 if \u8bed\u53e5\u68c0\u67e5\u6570\u7ec4\u4e2d\u7279\u5b9a\u7d22\u5f15\u5904\u7684\u5143\u7d20\u662f\u5426\u7b49\u4e8e\u7279\u5b9a\u6761\u4ef6\uff1a<\/p>\n
if (colors[0] == \"red\") {\n  \/\/ \u4ee3\u7801\u5757 1\n} else if (colors[1] == \"green\") {\n  \/\/ \u4ee3\u7801\u5757 2\n} else if (colors[2] == \"blue\") {\n  \/\/ \u4ee3\u7801\u5757 3\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4f18\u70b9\uff1a<\/strong><\/p>\n
    \n
  •  \u53ef\u8bfb\u6027\uff1a<\/strong>\u901a\u8fc7\u5c06\u6761\u4ef6\u5b58\u50a8\u5728\u6570\u7ec4\u4e2d\uff0c\u4ee3\u7801\u53d8\u5f97\u66f4\u5bb9\u6613\u9605\u8bfb\u548c\u7406\u89e3\u3002<\/li>\n
  •  \u7075\u6d3b\u6027\uff1a<\/strong>\u4f60\u53ef\u4ee5\u52a8\u6001\u66f4\u65b0\u6570\u7ec4\u4e2d\u7684\u6761\u4ef6\uff0c\u4ece\u800c\u7b80\u5316\u5bf9\u590d\u6742\u6761\u4ef6\u7684\u6d4b\u8bd5\u3002<\/li>\n
  •  \u907f\u514d\u5d4c\u5957 if \u8bed\u53e5\uff1a<\/strong>\u5f53\u4f60\u6709\u591a\u4e2a\u6761\u4ef6\u65f6\uff0c\u4f7f\u7528\u6570\u7ec4\u53ef\u4ee5\u907f\u514d\u5d4c\u5957 if \u8bed\u53e5\uff0c\u4ece\u800c\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u7ef4\u62a4\u6027\u3002<\/li>\n<\/ul>\n
    \u6ce8\u610f\u4e8b\u9879\uff1a<\/strong><\/p>\n
      \n
    • \u786e\u4fdd\u6570\u7ec4\u4e2d\u7684\u6761\u4ef6\u6b63\u786e\uff0c\u5426\u5219\u53ef\u80fd\u4f1a\u5bfc\u81f4\u8fd0\u884c\u65f6\u9519\u8bef\u3002<\/li>\n
    • \u6ce8\u610f\u6570\u7ec4\u7d22\u5f15\u7684\u8303\u56f4\uff0c\u4ee5\u514d\u6570\u7ec4\u8d8a\u754c\u3002<\/li>\n
    • \u8003\u8651\u4f7f\u7528\u5176\u4ed6\u6570\u636e\u7ed3\u6784\uff08\u4f8b\u5982 Map \u6216\u679a\u4e3e\uff09\u6765\u5b58\u50a8\u6761\u4ef6\uff0c\u4ee5\u83b7\u5f97\u66f4\u597d\u7684\u7ec4\u7ec7\u6027\u548c\u53ef\u6269\u5c55\u6027\u3002<\/li>\n<\/ul>\n
      \u4ee5\u4e0a\u5c31\u662fjava\u4e2dif\u6761\u4ef6\u7684\u6570\u7ec4\u600e\u4e48\u7528\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
      java \u4e2d if \u8bed\u53e5\u652f\u6301\u4f7f\u7528\u6570\u7ec4\u5b58\u50a8\u6761\u4ef6\uff1a\u5c06\u6761\u4ef6\u5b58\u50a8\u5728\u6570\u7ec4\u4e2d\u3002\u5728 if \u8bed\u53e5\u4e2d\u6bd4\u8f83\u6570\u7ec4\u5143\u7d20\u4e0e\u7279\u5b9a\u6761\u4ef6\u3002\u4f18\u70b9\uff1a\u53ef\u8bfb\u6027\u3001\u7075\u6d3b\u6027\u3001\u907f\u514d\u5d4c\u5957 if \u8bed\u53e5\u3002\u6ce8\u610f\uff1a\u786e\u4fdd\u6761\u4ef6\u6b63\u786e\u3001\u6ce8\u610f\u7d22\u5f15\u8303\u56f4\u3001\u8003\u8651\u4f7f\u7528\u5176\u4ed6\u6570\u636e\u7ed3\u6784\u3002 Java \u4e2d if \u6761\u4ef6\u7684\u6570\u7ec4\u7528\u6cd5 \u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u6570\u7ec4\u6765\u5b58\u50a8\u6761\u4ef6\uff0c\u5e76\u5728 if \u8bed\u53e5\u4e2d\u4f7f\u7528\u8fd9\u4e9b\u6761\u4ef6\u3002\u8fd9\u662f\u4e00\u79cd\u7b80\u5316\u590d\u6742\u6761\u4ef6\u6d4b\u8bd5\u5e76\u63d0\u9ad8\u7684\u65b9\u6cd5\u3002 \u7528\u6cd5\uff1a if (array[index] == condition) { \/\/ \u4ee3\u7801\u5757 } \u767b\u5f55\u540e\u590d\u5236 \u793a\u4f8b\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u5047\u8bbe\u4f60\u6709\u5982\u4e0b\u6570\u7ec4\uff1a String[] colors = {“red”, “green”, “blue”}; \u767b\u5f55\u540e\u590d\u5236 \u73b0\u5728\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528 if \u8bed\u53e5\u68c0\u67e5\u6570\u7ec4\u4e2d\u7279\u5b9a\u7d22\u5f15\u5904\u7684\u5143\u7d20\u662f\u5426\u7b49\u4e8e\u7279\u5b9a\u6761\u4ef6\uff1a if (colors[0] == “red”) { \/\/ \u4ee3\u7801\u5757 1 } else if (colors[1] == “green”) { […]<\/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-64357","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64357","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=64357"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64357\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=64357"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=64357"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=64357"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}