账簿记录中使用的红字，具有特定的涵义，它表示蓝字金额的减少或负数余额。
Thee scarlet letter use records, has a specific meaning, it said the blue words amount to reduce or negative balance.
在我们的例子中，不允许有人拥有的支票帐户余额为负数。
In our case, we do not allow someone to have a negative checking account balance.
SR3：系统根据指定数额从账户中提取现金，但是取款后不能导致余额为负数。
SR3: The system shall withdraw a given amount of money from the account, but only if the resulting balance is not negative.
当活期账户的余额为负数时，称为透支。
When the balance of a current account is negative, it is called overdraft.
当活期账户的余额为负数时，称为透支。
When the balance of a current account is negative, it is called overdraft.
应用推荐