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next / express / next-routes
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字节长度
taoqf
yarn add --dev @dfeidao/fd-an000009求一个字符串的字节长度，通常用来计算字符串在显示或打印的时候显示的宽度。
// 字节长度(英文)
const ran9 = an9('feidao');
// 6
// 字节长度(中文)
const ran9 = an9('飞道');
// 4
// 字节长度(中英文)
const ran9 = an9('01飞道');
// 6