Android Email check 正则表达式 (?:[-!#-\\'*+\\x2f-9=?A-Z^-~]+(?:\\.[-!#-\\'*+\\x2f-9=?A-Z^-~]+)*|\"(?:[!#-\\[\\]-~]|\\\\[\\x09 -~])*\")@[-!#-\'*+\\x2f-9=?A-Z^-~]+(?:\\.[-!#-\'*+\\x2f-9=?A-Z^-~]+)* kotlin方法
例:
fun isEmailAddress(str: String): Boolean {
return match(str, "(?:[-!#-\\'*+\\x2f-9=?A-Z^-~]+(?:\\.[-!#-\\'*+\\x2f-9=?A-Z^-~]+)*|\"(?:[!#-\\[\\]-~]|\\\\[\\x09 -~])*\")@[-!#-\'*+\\x2f-9=?A-Z^-~]+(?:\\.[-!#-\'*+\\x2f-9=?A-Z^-~]+)*")
}