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mysql \u4e2d length()\u51fd\u6570\u4e0d\u662f\u67e5\u770b\u5b57\u7b26\u4e2a\u6570\u5417:<\/span><\/p>\r\n\r\nlength('\u4f60\u597d') \/\/\u4e3a\u4ec0\u4e48\u8fd4\u56de7<\/span><\/p>\r\n\r\n\u53e6\u5916\u6709\u6ca1\u6709\u8fd4\u56de\u5b57\u8282\u6570\u7684\u51fd\u6570!<\/p><\/p>\n <\/div>\n \n \n \n \n \u4e3e\u62a5<\/a>\n <\/span>\n \n <\/i>\u6536\u85cf\n <\/a>\n \u56de\u7b54<\/button><\/a>\n \n <\/i>0\u4eba\u8d5e<\/span>\n <\/a>\n <\/div>\n \n <\/div>\n <\/div>\n<\/div>\n \n\n\n\n\n \n \n <\/span> \n \u5168\u90e8\u56de\u7b54\uff082<\/em>\uff09<\/span>\n <\/h2>\n \n \u52a0\u8f7d\u56de\u7b54\u4e2d\u3002\u3002\u3002<\/li>\n <\/div> \n \n<\/div>\n\n \n \n\n\n \u6211\u8981\u56de\u7b54<\/h2>\n \n \n \n \n <\/textarea>\n <\/div>\n <\/div>\n \n \n \n \n \n \n \n \u56de\u7b54<\/button>\n <\/div>\n <\/div>\n \n<\/form>\n <\/div>\n <\/div> \n\n\n\n
length('\u4f60\u597d') \/\/\u4e3a\u4ec0\u4e48\u8fd4\u56de7<\/span><\/p>\r\n\r\n\u53e6\u5916\u6709\u6ca1\u6709\u8fd4\u56de\u5b57\u8282\u6570\u7684\u51fd\u6570!<\/p><\/p>\n <\/div>\n \n \n \n \n \u4e3e\u62a5<\/a>\n <\/span>\n \n <\/i>\u6536\u85cf\n <\/a>\n \u56de\u7b54<\/button><\/a>\n \n <\/i>0\u4eba\u8d5e<\/span>\n <\/a>\n <\/div>\n \n <\/div>\n <\/div>\n<\/div>\n \n\n\n\n\n \n \n <\/span> \n \u5168\u90e8\u56de\u7b54\uff082<\/em>\uff09<\/span>\n <\/h2>\n \n \u52a0\u8f7d\u56de\u7b54\u4e2d\u3002\u3002\u3002<\/li>\n <\/div> \n \n<\/div>\n\n \n \n\n\n \u6211\u8981\u56de\u7b54<\/h2>\n \n \n \n \n <\/textarea>\n <\/div>\n <\/div>\n \n \n \n \n \n \n \n \u56de\u7b54<\/button>\n <\/div>\n <\/div>\n \n<\/form>\n <\/div>\n <\/div> \n\n\n\n
\u53e6\u5916\u6709\u6ca1\u6709\u8fd4\u56de\u5b57\u8282\u6570\u7684\u51fd\u6570!<\/p><\/p>\n <\/div>\n