{"id":201012,"date":"2025-05-06T11:14:28","date_gmt":"2025-05-06T03:14:28","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201012\/"},"modified":"2025-05-06T11:14:28","modified_gmt":"2025-05-06T03:14:28","slug":"mysql-%e4%b8%ad%e7%9a%84-utf8mb4-%e6%98%af%e5%ae%9a%e9%95%bf%e5%ad%98%e5%82%a8%e5%90%97%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201012\/","title":{"rendered":"MySQL \u4e2d\u7684 UTF8MB4 \u662f\u5b9a\u957f\u5b58\u50a8\u5417\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>MySQL \u4e2d\u7684 UTF8MB4 \u662f\u5b9a\u957f\u5b58\u50a8\u5417\uff1f<\/h1>\n<p>\u54c8\u55bd\uff01\u4eca\u5929\u5fc3\u8840\u6765\u6f6e\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86\uff0c\u60f3\u5fc5\u5927\u5bb6\u5e94\u8be5\u5bf9\u90fd\u4e0d\u964c\u751f\u5427\uff0c\u90a3\u4e48\u9605\u8bfb\u672c\u6587\u5c31\u90fd\u4e0d\u4f1a\u5f88\u56f0\u96be\uff0c\u4ee5\u4e0b\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230\uff0c\u82e5\u662f\u4f60\u6b63\u5728\u5b66\u4e60\uff0c\u5343\u4e07\u522b\u9519\u8fc7\u8fd9\u7bc7\u6587\u7ae0~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u4f60\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241125\/173252073967442b230e709.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>MySQL \u4e2d\u7684 UTF8MB4 \u662f\u5426\u662f\u5b9a\u957f\u5b58\u50a8\uff1f<\/strong><\/p>\n<p>\u5728\u5f97\u77e5 MySQL \u5f15\u5165\u4e86 UTF8MB4 \u6570\u636e\u7c7b\u578b\u540e\uff0c\u4e0d\u7981\u53d1\u95ee\uff1a\u5982\u679c\u6211\u4f7f\u7528\u4e86 UTF8MB4\uff0c\u4f46\u5728\u5176\u4e2d\u4ec5\u5b58\u50a8\u4e86\u51e0\u4e2a\u5b57\u6bcd\uff08\u4f8b\u5982\uff1a\u201cabc\u201d\uff09\uff0c\u8fd9\u4e9b\u5b57\u6bcd\u5728\u5b58\u50a8\u65f6\u5c06\u5360\u7528 3 \u4e2a\u5b57\u8282\u8fd8\u662f 12 \u4e2a\u5b57\u8282\uff1f<\/p>\n<p><strong>\u7b54\u6848\uff1a<\/strong><\/p>\n<p>UTF8MB4 \u662f\u4e00\u79cd\u53d8\u957f\u5b58\u50a8\u5b57\u7b26\u96c6\u3002\u201cMB\u201d\u8868\u793a\u201cMost Bytes\u201d\uff0c\u5373\u201c\u6700\u591a\u5b57\u8282\u201d\u3002\u8fd9\u8868\u660e UTF8MB4 \u5b57\u7b26\u96c6\u4f7f\u7528\u53ef\u53d8\u6570\u91cf\u7684\u5b57\u8282\u6765\u5b58\u50a8\u5b57\u7b26\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u5b57\u7b26\u7684\u7f16\u7801\u3002<\/p>\n<p>\u5bf9\u4e8e\u5305\u542b\u5728\u57fa\u672c\u591a\u8bed\u8a00\u5e73\u9762\u4e0a\uff08BMP\uff09\u7684\u5b57\u7b26\uff08\u5373\u5927\u591a\u6570\u5e38\u89c1\u8bed\u8a00\u4e2d\u7684\u5e38\u89c1\u5b57\u7b26\uff09\uff0cUTF8MB4 \u548c UTF8MB3 \u4f7f\u7528\u76f8\u540c\u7684\u5b58\u50a8\u65b9\u5f0f\uff0c\u5373\u4f7f\u7528 1 \u5230 3 \u4e2a\u5b57\u8282\u3002\u4f46\u662f\uff0c\u5bf9\u4e8e\u8d85\u51fa BMP \u8303\u56f4\u7684\u5b57\u7b26\uff08\u5373\u8865\u5145\u5b57\u7b26\uff09\uff0cUTF8MB4 \u5219\u9700\u8981 4 \u4e2a\u5b57\u8282\u6765\u5b58\u50a8\uff0c\u800c UTF8MB3 \u65e0\u6cd5\u5b58\u50a8\u8fd9\u79cd\u5b57\u7b26\u3002<\/p>\n<p>\u56e0\u6b64\uff0c<strong>\u201cabc\u201d\u4e09\u4e2a\u5b57\u6bcd\u5728 UTF8MB4 \u4e2d\u5c06\u5360\u7528 3 \u4e2a\u5b57\u8282\uff0c\u800c\u4e0d\u662f 12 \u4e2a\u5b57\u8282<\/strong>\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u300aMySQL \u4e2d\u7684 UTF8MB4 \u662f\u5b9a\u957f\u5b58\u50a8\u5417\uff1f\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>MySQL \u4e2d\u7684 UTF8MB4&#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":[101],"tags":[],"class_list":["post-201012","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201012","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=201012"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201012\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201012"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201012"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201012"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}