And so here do we see we can check for equality with zero.

然后这里我们可以检查与0等价的情况了。

youdao

After a simple check to ensure the two passwords are of equal length, each key is then matched in the entire password - ensuring that the fifth character is a zero in both passwords, for example.

在经过简单的检查确保两个密码长度相等之后，将在整个密码中匹配各个键——例如，确保两个密码中的第五个字符是零。

youdao

In addition to comparing the length and index values for equality, you must also check for either a null Number after parsing or an empty input string (" "or length of zero).

除了要比较长度和索引值是否相等之外，还必须检查是解析后的null Number还是一个空的输入字符串(或长度为0)。

youdao