典型的功能就是短期(例如四周)内保留个别日志，并按顺序对它们编号。
A typical arrangement is to keep individual logs for a short period of time (for example, four weeks) and number them sequentially.
该技术的一个限制是，对于三个小写字母加上四个数字的指定用户名格式，它仅计算600到65,000之间的编号。
A limitation of this technique is that it only calculates Numbers between 600 and 65,000 for the specified user name format of three lowercase letters followed by four digits.
两个应用程序(App1和App2)正在访问名为“Account Bal”的Backing map中的数据，Account Bal中包括帐户余额并使用帐户编号(一个四位数的数字字符串)作为其键。
Two applications (App1 and App2) are accessing data in a Backing Map called "account bal," which contains account balances and USES the account number (a four-digit numeric string) as its key.
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