{"id":206022,"date":"2025-06-12T13:21:22","date_gmt":"2025-06-12T05:21:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/206022\/"},"modified":"2025-06-12T13:21:22","modified_gmt":"2025-06-12T05:21:22","slug":"golang%e4%b8%ad%e5%a6%82%e4%bd%95%e5%b0%8616%e8%bf%9b%e5%88%b6%e6%95%b0%e8%bd%ac%e6%8d%a2%e4%b8%ba%e5%ad%97%e8%8a%82%e6%95%b0%e7%bb%84%e5%b9%b6%e5%87%86%e7%a1%ae%e8%bf%98%e5%8e%9f%e4%b8%baint%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/206022\/","title":{"rendered":"Golang\u4e2d\u5982\u4f55\u5c0616\u8fdb\u5236\u6570\u8f6c\u6362\u4e3a\u5b57\u8282\u6570\u7ec4\u5e76\u51c6\u786e\u8fd8\u539f\u4e3aint\uff1f"},"content":{"rendered":"<p>\u600e\u4e48\u5165\u95e8GOLANG\u7f16\u7a0b\uff1f\u9700\u8981\u5b66\u4e60\u54ea\u4e9b\u77e5\u8bc6\u70b9\uff1f\u8fd9\u662f\u65b0\u624b\u4eec\u521a\u63a5\u89e6\u7f16\u7a0b\u65f6\u5e38\u89c1\u7684\u95ee\u9898\uff1b\u4e0b\u9762GOLANG\u5c31\u6765\u7ed9\u5927\u5bb6\u6574\u7406\u5206\u4eab\u4e00\u4e9b\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u80fd\u591f\u7ed9\u521d\u5b66\u8005\u4e00\u4e9b\u5e2e\u52a9\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u4ecb\u7ecd\u300aGOLANG\u4e2d\u5982\u4f55\u5c0616\u8fdb\u5236\u6570\u8f6c\u6362\u4e3a\u5b57\u8282\u6570\u7ec4\u5e76\u51c6\u786e\u8fd8\u539f\u4e3aint\uff1f\u300b\uff0c\u6d89\u53ca\u5230\uff0c\u6709\u9700\u8981\u7684\u53ef\u4ee5\u6536\u85cf\u4e00\u4e0b,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241031\/173038467667239324f2d5e.jpg\" class=\"aligncenter\">,<br \/>\n<strong>golang\u4e2dint 16\u8fdb\u5236\u8f6cbyte\u518d\u8f6cint<\/strong>,\u95ee\u9898\uff1a\u5c0616\u8fdb\u5236\u65700x5af3aca48850\u8f6c\u6362\u4e3a8\u4f4dbyte\u5b57\u8282\uff0c\u5e76\u4e14\u518d\u8f6c\u56deint\u65f6\u5f97\u5230\u6b63\u786e\u7684\u6570\u503c\u3002,<br \/>\n<strong>\u89e3\u51b3\u65b9\u6848\uff1a<\/strong>,\u8fd9\u4e2a\u89e3\u51b3\u65b9\u6848\u4f7f\u7528\u4e86\u4e00\u4e9bgolang\u6807\u51c6\u5e93\u4e2d\u7684\u51fd\u6570\uff1a,\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u4f60\u4e4b\u524d\u4f7f\u7528\u7684int32\u7c7b\u578b\u65e0\u6cd5\u5bb9\u7eb3\u90a3\u4e48\u5927\u768416\u8fdb\u5236\u6570\uff0c\u5bfc\u81f4\u6ea2\u51fa\u95ee\u9898\u3002\u56e0\u6b64\uff0c\u6539\u7528int64\u7c7b\u578b\u53ef\u4ee5\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002,\u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300aGOLANG\u4e2d\u5982\u4f55\u5c0616\u8fdb\u5236\u6570\u8f6c\u6362\u4e3a\u5b57\u8282\u6570\u7ec4\u5e76\u51c6\u786e\u8fd8\u539f\u4e3aint\uff1f\u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~GOLANG\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03GOLANG\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\uff01,binary.bigendian.uint64: \u5c06\u5927\u7aef\u5e8f\u5b57\u8282\u5207\u7247\u8f6c\u6362\u4e3auint64\u503c\u3002,binary.bigendian.putuint64: \u5c06uint64\u503c\u8f6c\u6362\u4e3a\u5927\u7aef\u5e8f\u5b57\u8282\u5207\u7247\uff08\u5927\u7aef\u5e8f\u610f\u5473\u7740\u6700\u9ad8\u6709\u6548\u4f4d\u5728\u5b57\u8282\u5207\u7247\u7684\u5f00\u5934\uff09\u3002,golang\u4e2dint 16\u8fdb\u5236\u8f6cbyte\u518d\u8f6cint,\u600e\u4e48\u5165\u95e8GOLANG\u7f16\u7a0b\uff1f\u9700\u8981\u5b66\u4e60\u54ea\u4e9b\u77e5\u8bc6\u70b9\uff1f\u8fd9\u662f\u65b0\u624b\u4eec\u521a\u63a5\u89e6\u7f16\u7a0b\u65f6\u5e38\u89c1\u7684\u95ee\u9898\uff1b\u4e0b\u9762GOLANG\u5c31\u6765\u7ed9\u5927\u5bb6\u6574\u7406\u5206\u4eab\u4e00\u4e9b\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u80fd\u591f\u7ed9\u521d\u5b66\u8005\u4e00\u4e9b\u5e2e\u52a9\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u4ecb\u7ecd\u300aGOLANG\u4e2d\u5982\u4f55\u5c0616\u8fdb\u5236\u6570\u8f6c\u6362\u4e3a\u5b57\u8282\u6570\u7ec4\u5e76\u51c6\u786e\u8fd8\u539f\u4e3aint\uff1f\u300b\uff0c\u6d89\u53ca\u5230\uff0c\u6709\u9700\u8981\u7684\u53ef\u4ee5\u6536\u85cf\u4e00\u4e0b,<br \/>\n<b><\/b> <\/p>\n<p>\u5f53\u524d\u4f4d\u7f6e\uff1a <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span> <span>GOLANG\u4e2d\u5982\u4f55\u5c0616\u8fdb\u5236\u6570\u8f6c\u6362\u4e3a\u5b57\u8282\u6570\u7ec4\u5e76\u51c6\u786e\u8fd8\u539f\u4e3aint\uff1f<\/span><\/p>\n<h1>GOLANG\u4e2d\u5982\u4f55\u5c0616\u8fdb\u5236\u6570\u8f6c\u6362\u4e3a\u5b57\u8282\u6570\u7ec4\u5e76\u51c6\u786e\u8fd8\u539f\u4e3aint\uff1f<\/h1>\n<p><span>2024-10-31 22:24:52<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u600e\u4e48\u5165\u95e8GOLANG\u7f16\u7a0b\uff1f\u9700\u8981\u5b66\u4e60\u54ea\u4e9b\u77e5\u8bc6\u70b9\uff1f\u8fd9\u662f\u65b0\u624b\u4eec\u521a\u63a5\u89e6\u7f16\u7a0b\u65f6\u5e38\u89c1\u7684\u95ee\u9898\uff1b\u4e0b\u9762GOLANG\u5c31\u6765\u7ed9\u5927\u5bb6\u6574\u7406\u5206\u4eab\u4e00\u4e9b\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u80fd\u591f\u7ed9\u521d\u5b66\u8005\u4e00\u4e9b\u5e2e\u52a9\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u4ecb\u7ecd\u300aGOLANG\u4e2d\u5982\u4f55\u5c0616\u8fdb\u5236\u6570\u8f6c\u6362\u4e3a\u5b57\u8282\u6570\u7ec4\u5e76\u51c6\u786e\u8fd8\u539f\u4e3aint\uff1f\u300b\uff0c\u6d89\u53ca\u5230\uff0c\u6709\u9700\u8981\u7684\u53ef\u4ee5\u6536\u85cf\u4e00\u4e0b<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241031\/173038467667239324f2d5e.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>golang\u4e2dint 16\u8fdb\u5236\u8f6cbyte\u518d\u8f6cint<\/strong><\/p>\n<p>\u95ee\u9898\uff1a\u5c0616\u8fdb\u5236\u65700x5af3aca48850\u8f6c\u6362\u4e3a8\u4f4dbyte\u5b57\u8282\uff0c\u5e76\u4e14\u518d\u8f6c\u56deint\u65f6\u5f97\u5230\u6b63\u786e\u7684\u6570\u503c\u3002<\/p>\n<p><strong>\u89e3\u51b3\u65b9\u6848\uff1a<\/strong><\/p>\n<pre>package main\n\nimport (\n    \"encoding\/binary\"\n    \"fmt\"\n)\n\nfunc main() {\n    const x = 0x5AF3ACA48850\n\n    fmt.Println(int64(x))\n\n    var data = make([]byte, 8)\n\n    binary.BigEndian.PutUint64(data, uint64(x))\n    fmt.Println(data)  \/\/ output: [0 0 90 243 172 164 136 80]\n\n    var bytes = []byte{0, 0, 90, 243, 172, 164, 136, 80}\n    fmt.Println(binary.BigEndian.Uint64(bytes) == uint64(x))  \/\/ true\n}<\/pre>\n<p>\u8fd9\u4e2a\u89e3\u51b3\u65b9\u6848\u4f7f\u7528\u4e86\u4e00\u4e9bgolang\u6807\u51c6\u5e93\u4e2d\u7684\u51fd\u6570\uff1a<\/p>\n<ul>\n<li>binary.bigendian.putuint64: \u5c06uint64\u503c\u8f6c\u6362\u4e3a\u5927\u7aef\u5e8f\u5b57\u8282\u5207\u7247\uff08\u5927\u7aef\u5e8f\u610f\u5473\u7740\u6700\u9ad8\u6709\u6548\u4f4d\u5728\u5b57\u8282\u5207\u7247\u7684\u5f00\u5934\uff09\u3002<\/li>\n<li>binary.bigendian.uint64: \u5c06\u5927\u7aef\u5e8f\u5b57\u8282\u5207\u7247\u8f6c\u6362\u4e3auint64\u503c\u3002<\/li>\n<\/ul>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u4f60\u4e4b\u524d\u4f7f\u7528\u7684int32\u7c7b\u578b\u65e0\u6cd5\u5bb9\u7eb3\u90a3\u4e48\u5927\u768416\u8fdb\u5236\u6570\uff0c\u5bfc\u81f4\u6ea2\u51fa\u95ee\u9898\u3002\u56e0\u6b64\uff0c\u6539\u7528int64\u7c7b\u578b\u53ef\u4ee5\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002<\/p>\n<p>\u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300aGOLANG\u4e2d\u5982\u4f55\u5c0616\u8fdb\u5236\u6570\u8f6c\u6362\u4e3a\u5b57\u8282\u6570\u7ec4\u5e76\u51c6\u786e\u8fd8\u539f\u4e3aint\uff1f\u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~GOLANG\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03GOLANG\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u4f01\u4e1a\u90ae\u7bb1\u6587\u4ef6\u600e\u4e48\u4e0b\u8f7d\u5230\u7535\u8111\uff1f\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u4e3a\u4ec0\u4e48 `select * from new_pool where chlid != \\&#8221;news_top\\&#8221; &amp;&amp; chlid != \\&#8221;news_ent\\&#8221; limit 1;` \u7684 `EXPLAIN` \u7ed3\u679c\u4e2d `indexType` \u4e3a `ALL`\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u600e\u4e48\u5165\u95e8GOLANG\u7f16\u7a0b\uff1f\u9700\u8981\u5b66&#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-206022","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206022","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=206022"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206022\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=206022"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=206022"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=206022"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}