常見例句雙語(yǔ)例句The \p{Alnum} sequence means a single alphanumeric character (A through Z, a through z, or 0 through 9).p{Alnum} 序列表示單個(gè)字母數(shù)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.@ 就是意味著它必須出現(xiàn)在至少一個(gè)字母數(shù)字字符之後，這樣整個(gè)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生成一個(gè)安全的密碼，其中不包含含糊（即容易混淆的）字符，至少包含一個(gè)非字母數(shù)字字符 返回 alphanumeric character