从特定时间开始按时间戳生成唯一字符串

从特定时间开始按时间戳生成唯一字符串

• 常规字符串a-z,A-Z,0-9一共62个字符串设置为字典

• 将当前时间与特定时间的时间差,转为时间戳后生成一个62位字符串

  def timestampto62():
      timestamp_flag = 0 # 特定时间
      timestamp = int(datetime.now().timestamp() * 10 ** 6) -timestamp_flag
      characters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
      result = ""
      if timestamp == 0:
          return characters[0]
      while timestamp > 0:
          remainder = timestamp % 62
          result = characters[remainder] + result
          timestamp //= 62
      return result