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竹杖芒鞋轻胜马，谁怕？一蓑烟雨任平生。

网上应该也有不少包，之前自己写过一个js版的

const getGuid = () => {
  return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
    const r = (Math.random() * 16) | 0
    const v = c === 'x' ? r : (r & 0x3) | 0x8
    return v.toString(16)
  })
}
Replies
2

stackoverflow 上面的一个，更加标准一点：

export function uuid() {
  // http://www.ietf.org/rfc/rfc4122.txt
  const s = new Array(36);
  const hexDigits = '0123456789abcdef';
  for (let i = 0; i < 36; i++) {
    const star = Math.floor(Math.random() * 0x10);
    s[i] = hexDigits.substring(star, star + 1);
  }
  s[14] = '4'; // bits 12-15 of the time_hi_and_version field to 0010
  // eslint-disable-next-line no-bitwise
  const star = (s[19] & 0x3) | 0x8; // bits 6-7 of the clock_seq_hi_and_reserved to 01
  s[19] = hexDigits.substring(star, star + 1);
  s[23] = '-';
  s[18] = '-';
  s[13] = '-';
  s[8] = '-';
  return s.join('');
}

哈哈，学习了 +1