{"id":200787,"date":"2025-05-06T09:23:25","date_gmt":"2025-05-06T01:23:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200787\/"},"modified":"2025-05-06T09:23:25","modified_gmt":"2025-05-06T01:23:25","slug":"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\/200787\/","title":{"rendered":"utf8mb4 \u662f\u5b9a\u957f\u5b58\u50a8\u5417\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>utf8mb4 \u662f\u5b9a\u957f\u5b58\u50a8\u5417\uff1f<\/h1>\n<p>\u5728\u6570\u636e\u5e93\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u8fd9\u6837\u90a3\u6837\u7684\u95ee\u9898\uff0c\u7136\u540e\u8981\u5361\u597d\u534a\u5929\uff0c\u7b49\u95ee\u9898\u89e3\u51b3\u4e86\u624d\u53d1\u73b0\u539f\u6765\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u662f\u6ca1\u6709\u638c\u63e1\u597d\u3002\u4eca\u5929\u4e3b\u673a\u5b9d\u8d1d\u5c31\u6574\u7406\u5206\u4eab\u300autf8mb4 \u662f\u5b9a\u957f\u5b58\u50a8\u5417\uff1f\u300b\uff0c\u804a\u804a\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u6b63\u5728\u52aa\u529b\u8d5a\u94b1\u7684\u4f60\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241114\/17315797126735cf407deb4.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>utf8mb4 \u7684\u5b58\u50a8\u7279\u6027<\/strong><\/p>\n<p>\u5173\u4e8e utf8mb4 \u662f\u5426\u4e3a\u5b9a\u957f\u5b58\u50a8\u7684\u95ee\u9898\uff0c\u6211\u4eec\u4ece\u76f8\u5173\u6587\u6863\u4e2d\u4e86\u89e3\u5230\uff1a<\/p>\n<ul>\n<li>utf8mb4 \u662f\u4e00\u79cd\u53d8\u957f\u7684\u7f16\u7801\uff0c\u53d6\u51b3\u4e8e\u5b58\u50a8\u7684\u5b57\u7b26\u3002<\/li>\n<li>\u4e0e utf8mb3 \u76f8\u6bd4\uff0cutf8mb4 \u53ef\u4ee5\u5b58\u50a8\u66f4\u5927\u7684\u5b57\u7b26\u8303\u56f4\uff0c\u5305\u62ec\u8865\u5145\u5b57\u7b26\u3002<\/li>\n<\/ul>\n<p><strong>\u5b58\u50a8\u7a7a\u95f4\u5360\u7528<\/strong><\/p>\n<p>\u5f53\u5b58\u50a8 BMP \u5b57\u7b26\uff08Unicode \u4e2d\u8303\u56f4 from U+0000 to U+FFFF \u7684\u5e38\u89c1\u5b57\u7b26\uff09\u65f6\uff0cutf8mb4 \u548c utf8mb3 \u5177\u6709\u76f8\u540c\u7684\u5b58\u50a8\u7279\u6027\uff1a<\/p>\n<ul>\n<li>\u4e00\u4e2a\u82f1\u6587\u5b57\u7b26\u5360 1 \u4e2a\u5b57\u8282\u3002<\/li>\n<li>\u4e00\u4e2a BMP \u5b57\u7b26\u6700\u591a\u5360 3 \u4e2a\u5b57\u8282\u3002<\/li>\n<\/ul>\n<p>\u7136\u800c\uff0c\u5bf9\u4e8e\u8865\u5145\u5b57\u7b26\uff08\u8d85\u51fa BMP \u8303\u56f4\u7684\u5b57\u7b26\uff09\uff0cutf8mb4 \u9700\u8981 4 \u4e2a\u5b57\u8282\u6765\u5b58\u50a8\uff0c\u800c utf8mb3 \u65e0\u6cd5\u5b58\u50a8\u5b83\u4eec\u3002<\/p>\n<p>\u56e0\u6b64\uff0cutf8mb4 \u4e0d\u662f\u5b9a\u957f\u5b58\u50a8\uff0c\u5176\u5b58\u50a8\u7a7a\u95f4\u5360\u7528\u6839\u636e\u5b58\u50a8\u7684\u5b57\u7b26\u800c\u53d8\u5316\u3002\u5b58\u50a8\u7684\u5b57\u7b26\u8d8a\u591a\uff0c\u5360\u7528\u7684\u7a7a\u95f4\u5c31\u8d8a\u5927\u3002\u8fd9\u4e3b\u8981\u662f\u56e0\u4e3a utf8mb4 \u5141\u8bb8\u5b58\u50a8\u66f4\u5bbd\u7684\u5b57\u7b26\u8303\u56f4\uff0c\u5305\u62ec\u8868\u60c5\u7b26\u53f7\u548c\u4e2d\u6587\u6c49\u5b57\u3002<\/p>\n<p>\u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8e\u6570\u636e\u5e93\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>utf8mb4 \u662f\u5b9a\u957f\u5b58\u50a8\u5417\uff1f &#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-200787","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200787","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=200787"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200787\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200787"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200787"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200787"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}