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js实现生成随机UID
const genUid = () => { var length = 20 var soupLength = genUid.soup_.length var id = [] for (var i = 0; i < length; i++) { id[i] = genUid.soup_.charAt(Math.random() * soupLength) } return id.join('') } genUid.soup_ = '!#$%()*+,-./:;=?@[]^_`{|}~ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789' genUid() // ;l`yCPc9A8IuK}?N6,%}