alphanumeric character

常见例句

The \p{Alnum} sequence means a single alphanumeric character (A through Z, a through z, or 0 through 9).
p{Alnum} 序列表示单个字母数字字符（A 到 Z、a 到 z 或 0 到 9）。
The @ is just that, meaning it must appear after at least one alphanumeric character for the whole pattern to succeed.
@ 就是意味着它必须出现在至少一个字母数字字符之后，这样整个模式匹配才能成功。
Generate a single, secure password with no ambiguous, or easily confused, characters and at least one non-alphanumeric character
生成一个安全的密码，其中不包含含糊（即容易混淆的）字符，至少包含一个非字母数字字符