{"id":207274,"date":"2025-07-08T08:57:23","date_gmt":"2025-07-08T00:57:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207274\/"},"modified":"2025-07-08T08:57:23","modified_gmt":"2025-07-08T00:57:23","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-uint32-%e6%8f%90%e4%be%9b%e9%9a%8f%e6%9c%ba%e6%ba%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207274\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528 uint32 \u63d0\u4f9b\u968f\u673a\u6e90"},"content":{"rendered":"<p><b><\/b> <\/p>\n<p>\u5f53\u524d\u4f4d\u7f6e\uff1a <span>&gt;<\/span> <span>&gt;<\/span> <span>&gt;<\/span> <span>&gt;<\/span> <span>\u5982\u4f55\u4f7f\u7528 uint32 \u63d0\u4f9b\u968f\u673a\u6e90<\/span><\/p>\n<p><span>\u6765\u6e90\uff1astackoverflow<\/span><br \/>\n<span>2024-04-21 12:12:34<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u4eca\u65e5\u4e0d\u80af\u57cb\u5934\uff0c\u660e\u65e5\u4f55\u4ee5\u62ac\u5934\uff01\u6bcf\u65e5\u4e00\u53e5\u52aa\u529b\u81ea\u5df1\u7684\u8bdd\u54c8\u54c8~\u54c8\u55bd\uff0c\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u5982\u4f55\u4f7f\u7528 uint32 \u63d0\u4f9b\u968f\u673a\u6e90\u300b<\/span>\uff0c\u4e3b\u8981\u5185\u5bb9\u662f\u8bb2\u89e3<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u53ef\u4ee5\u6536\u85cf\u6216\u8005\u6709\u66f4\u597d\u7684\u5efa\u8bae\u5728\u8bc4\u8bba\u63d0\u51fa\uff0c\u6211\u90fd\u4f1a\u8ba4\u771f\u770b\u7684\uff01\u5927\u5bb6\u4e00\u8d77\u8fdb\u6b65\uff0c\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n<p> \u95ee\u9898\u5185\u5bb9<br \/>\n <\/p>\n<p>\u6211\u6b63\u5728\u5c1d\u8bd5\u5728 go \u4e2d\u5b9e\u73b0 32 \u4f4d\uff08mt19937-32\u3001lfsr113 \u548c lfsr88 \u7b49\uff09\u968f\u673a\u6e90\uff0c\u4f46 <code>math.rand<\/code> \u7684\u6e90\u63a5\u53e3\u63a5\u53d7 <code>int63()<\/code> \u4f5c\u4e3a\u65b9\u6cd5\u3002 <\/p>\n<p>\u6211\u4eec\u5982\u4f55\u5c06 <code>uint32<\/code> \u8f6c\u6362\u4e3a <code>int64<\/code>\uff08\u975e\u8d1f int64 \u6216 63 \u4f4d\uff09<\/p>\n<p>\u8fd9\u662f\u4e00\u4e2a lfsr88 \u4ee3\u7801\uff08\u7701\u7565\u4e86\u4e00\u4e9b\u65b9\u6cd5\u548c\u5e38\u91cf\uff09\uff1a<\/p>\n<pre>type LFSR88 struct {\n    s1, s2, s3, b uint32\n}\n\n.\n.\n.\n\nfunc (lfsr *LFSR88) Uint32() uint32 {\n    lfsr.b = (((lfsr.s1 &lt;&lt; 13) ^ lfsr.s1) &gt;&gt; 19)\n    lfsr.s1 = (((lfsr.s1 &amp; 4294967294) &lt;&lt; 12) ^ lfsr.b)\n    lfsr.b = (((lfsr.s2 &lt;&lt; 2) ^ lfsr.s2) &gt;&gt; 25)\n    lfsr.s2 = (((lfsr.s2 &amp; 4294967288) &lt;&lt; 4) ^ lfsr.b)\n    lfsr.b = (((lfsr.s3 &lt;&lt; 3) ^ lfsr.s3) &gt;&gt; 11)\n    lfsr.s3 = (((lfsr.s3 &amp; 4294967280) &lt;&lt; 17) ^ lfsr.b)\n    return (lfsr.s1 ^ lfsr.s2 ^ lfsr.s3)\n}<\/pre>\n<p> <\/p>\n<h2>\u89e3\u51b3\u65b9\u6848<\/h2>\n<p> <\/p>\n<p>\u5c06 <code>uint32<\/code> \u8f6c\u6362\u4e3a <code>int64<\/code> \u975e\u5e38\u7b80\u5355\uff1a<\/p>\n<pre>var u32 uint32 = \/* some number *\/\nvar i64 int64 = int64(u32)<\/pre>\n<p>\u4ec5\u6b64\u4e00\u70b9\u7684\u95ee\u9898\u662f\uff0c\u60a8\u6700\u7ec8\u4f1a\u5f97\u5230\u4e00\u4e2a\u534a 0 \u4f4d\u7684 int64\uff0c\u56e0\u6b64\u60a8\u53ef\u80fd\u60f3\u8981\u5c06\u5176\u4e2d\u4e24\u4e2a\u7ed3\u5408\u8d77\u6765\uff1a<\/p>\n<pre>var u1, u2 uint32 = \/* two numbers *\/\nvar i64 uint64 = int64(u1) + int64(u2)&lt;&lt;32<\/pre>\n<p>\u67e5\u770b\u5b8c\u6574\u793a\u4f8b \u3002<\/p>\n<p>\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300a\u5982\u4f55\u4f7f\u7528 uint32 \u63d0\u4f9b\u968f\u673a\u6e90\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":"<p>\u5f53\u524d\u4f4d\u7f6e\uff1a &gt; &gt; &#46;&#46;&#46;<\/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-207274","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207274","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=207274"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207274\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207274"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207274"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207274"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}