{"id":207941,"date":"2025-07-08T12:50:40","date_gmt":"2025-07-08T04:50:40","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207941\/"},"modified":"2025-07-08T12:50:40","modified_gmt":"2025-07-08T04:50:40","slug":"for-%e5%be%aa%e7%8e%af%e4%b8%8e-while-%e5%be%aa%e7%8e%af-%e8%8d%b7%e5%85%b0%e5%9b%bd%e6%97%97","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207941\/","title":{"rendered":"For \u5faa\u73af\u4e0e While \u5faa\u73af – \u8377\u5170\u56fd\u65d7"},"content":{"rendered":"

<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> For \u5faa\u73af\u4e0e While \u5faa\u73af – \u8377\u5170\u56fd\u65d7<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-27 08:27:34<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u5206\u4eab\u300aFor \u5faa\u73af\u4e0e While \u5faa\u73af – \u8377\u5170\u56fd\u65d7\u300b\uff0c\u8986\u76d6\u4e86Golang\u7684\u5e38\u89c1\u57fa\u7840\u77e5\u8bc6\uff0c\u5176\u5b9e\u4e00\u4e2a\u8bed\u8a00\u7684\u5168\u90e8\u77e5\u8bc6\u70b9\u4e00\u7bc7\u6587\u7ae0\u662f\u4e0d\u53ef\u80fd\u8bf4\u5b8c\u7684\uff0c\u4f46\u5e0c\u671b\u901a\u8fc7\u8fd9\u4e9b\u95ee\u9898\uff0c\u8ba9\u8bfb\u8005\u5bf9\u81ea\u5df1\u7684\u638c\u63e1\u7a0b\u5ea6\u6709\u4e00\u5b9a\u7684\u8ba4\u8bc6(B \u6570)\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u66f4\u597d\u7684\u638c\u63e1\u5b83\u3002<\/p>\n

\u95ee\u9898\u5185\u5bb9
\n <\/p>\n

\u6211\u6b63\u5728\u5c1d\u8bd5\u5728golang\u4e2d\u4f7f\u7528for\u5faa\u73af\u548cwhile\u5faa\u73af\u6765\u5b9e\u73b0\u8377\u5170\u56fd\u65d7\u95ee\u9898\u3002<\/p>\n

\u95ee\u9898\u9648\u8ff0 – \u5bf9\u4e8e\u7ed9\u5b9a\u7684\u6570\u7ec4\uff0c\u4ee5\u8fd9\u6837\u7684\u65b9\u5f0f\u6392\u5217\u5143\u7d20\uff1a\u5927\u4e8e\u4e3b\u5143\u7684\u5143\u7d20\u4f4d\u4e8e\u4e3b\u5143\u7684\u53f3\u4fa7\uff0c\u5c0f\u4e8e\u6570\u7ec4\u7684\u5143\u7d20\u4f4d\u4e8e\u6570\u7ec4\u7684\u5de6\u4fa7\u3002 \u793a\u4f8b-<\/p>\n

\u8f93\u5165 – [3 2 4 1 6 3 7 5] \uff0c\u67a2\u8f74 = 4<\/p>\n

\u8f93\u51fa – [3 2 1 3 4 7 5 6]<\/p>\n

for\u5faa\u73af\u5b9e\u73b0[\u672a\u6309\u9884\u671f\u5de5\u4f5c]<\/p>\n

package main\n\nimport (\n    \"fmt\"\n)\n\nfunc main() {\n    in := []int{3, 2, 4, 1, 6, 3, 7, 5}\n    pivot := 4\n    run(in, pivot)\n\n}\n\nfunc run(in []int, pivot int) {\n\n    fmt.println(\"before : \", in)\n\n    lboundary := 0\n\n    hboundary := len(in) - 1\n\n    for i := 0; i <= hboundary; i++ {\n        if in[i] > pivot {\n            in[i], in[hboundary] = in[hboundary], in[i]\n            hboundary--\n        } else if in[i] < pivot {\n            in[i], in[lboundary] = in[lboundary], in[i]\n            lboundary++\n        }\n    }\n\n    fmt.println(\"after: \", in)\n\n}<\/pre>\n
while \u5faa\u73af\u5b9e\u73b0 [\u6309\u9884\u671f\u5de5\u4f5c] –<\/p>\n
package main\n\nimport (\n    \"fmt\"\n)\n\nfunc main() {\n    in := []int{3, 2, 4, 1, 6, 3, 7, 5}\n    pivot := 4\n    run(in, pivot)\n\n}\n\nfunc run(in []int, pivot int) {\n\n    fmt.Println(\"before : \", in)\n\n    i := 0\n    lBoundary := 0\n\n    hBoundary := len(in) - 1\n\n    for i <= hBoundary {\n        if in[i] > pivot {\n            in[i], in[hBoundary] = in[hBoundary], in[i]\n            hBoundary--\n        } else if in[i] < pivot {\n            in[i], in[lBoundary] = in[lBoundary], in[i]\n            lBoundary++\n            i++\n        } else {\n            i++\n        }\n    }\n    fmt.Println(\"after: \", in)\n}<\/pre>\n
\u6211\u65e0\u6cd5\u8bc6\u522b for \u5faa\u73af\u5b9e\u73b0\u4e2d\u7684\u95ee\u9898\u3002<\/p>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
\u95ee\u9898\u662f\uff0c\u5982\u679c\u60a8\u66f4\u65b0 while \u5faa\u73af\u8ba1\u6570\u5668 i<\/code> \u4ec5\u9002\u7528\u4e8e\u4e24\u4e2a\u6761\u4ef6\uff0c\u5373<\/p>\n
else if in[i] < pivot {\n        in[i], in[lboundary] = in[lboundary], in[i]\n        lboundary++\n        i++\n    } else {\n        i++\n    }<\/pre>\n
\u4f46\u662f\u5728 for \u5faa\u73af\u7684\u60c5\u51b5\u4e0b\uff0c\u7531\u4e8e i++<\/code>\uff0c\u6bcf\u6b21\u6267\u884c\u5faa\u73af\u65f6\u8ba1\u6570\u5668\u90fd\u4f1a\u9012\u589e\u3002<\/p>\n
\u56e0\u6b64\uff0c\u5982\u679c\u60a8\u66f4\u65b0 for \u5faa\u73af\u4ee3\u7801\u4ee5\u5c06\u589e\u91cf\u6761\u4ef6\u653e\u5165\u5faa\u73af\u5185\uff0c\u5b83\u5c06\u6309\u9884\u671f\u8fd0\u884c\uff1a<\/p>\n
package main\n\nimport (\n    \"fmt\"\n)\n\nfunc main() {\n    in := []int{3, 2, 4, 1, 6, 3, 7, 5}\n    pivot := 4\n    run(in, pivot)\n\n}\n\nfunc run(in []int, pivot int) {\n\n    fmt.Println(\"before : \", in)\n\n    lBoundary := 0\n\n    hBoundary := len(in) - 1\n    \/\/ remove i++ condition\n    for i := 0; i <= hBoundary; {\n        if in[i] > pivot {\n            in[i], in[hBoundary] = in[hBoundary], in[i]\n            hBoundary--  \/\/ no increment in this condition\n        } else if in[i] < pivot {\n            in[i], in[lBoundary] = in[lBoundary], in[i]\n            lBoundary++\n            i++  \/\/ add the increment condition here\n        } else {\n            i++ \/\/ and here as well\n        }\n\n    }\n\n    fmt.Println(\"after: \", in)\n\n}<\/pre>\n
\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300aFor \u5faa\u73af\u4e0e While \u5faa\u73af – \u8377\u5170\u56fd\u65d7\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5f53\u524d\u4f4d\u7f6e\uff1a > > ...<\/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-207941","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207941","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=207941"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207941\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207941"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207941"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207941"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}