經常使用正則

1. 電話和固話

/^((\d{7,8})|(0\d{2,3}-\d{7,8})|(1[3584]\d{9}))$/

2. 郵箱

/^[A-Za-z\d]+([-_.][A-Za-z\d]+)*@([A-Za-z\d]+[-.])+[A-Za-z\d]{2,4}$/