How to verify a password to have at least one uppercase, lowercase and number in c?

如何验证密码至少有一个大写字母，小写字母和数字的C ？

youdao

Using the lowercase letter in general should be avoided, because it is easily mistaken for the number 1.

一般情况下，我们应该避免使用小写字母，因为它很容易被误当作数字1。

youdao

Using the lowercase letter in general should be avoided, because it is easily mistaken for the number 1.

一般情况下，我们应该避免使用小写字母，因为它很容易被误当作数字1。

youdao