用正则表达式匹配邮箱、手机号、密码及用户名的OC

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/**     正则匹配账号密码邮箱等 */import UIKitclass MTTRegularMatchManager: NSObject {    // MARK: - 匹配邮箱    class func validateEmail(email:String) -> Bool    {        let emailRegex: String = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}"        let emailTest: NSPredicate = NSPredicate(format: "SELF MATCHES %@", emailRegex)        return emailTest.evaluate(with: email)    }    // MARK: - 匹配手机号    class func validateMobile(phone:String) -> Bool    {        let phoneRegex: String = "^((13[0-9])|(15[^4,\\D])|(18[0,0-9])|(17[0,0-9]))\\d{8}$"        let phoneTest = NSPredicate(format: "SELF MATCHES %@", phoneRegex)        return phoneTest.evaluate(with: phone)    }    // MARK: - 匹配密码    class func validatePassword(password:String) -> Bool    {        let  passWordRegex = "^(?![0-9]+$)(?![a-zA-Z]+$)[0-9A-Za-z]{8,16}$"        let passWordPredicate = NSPredicate(format: "SELF MATCHES%@", passWordRegex)        return passWordPredicate.evaluate(with: password)    }    // MARK: - 匹配用户名    class func validateUserName(username:String) -> Bool    {        let userNameRegex = "^[A-Za-z0-9]{6,20}+$"        let userNamePredicate = NSPredicate(format: "SELF MATCHES %@", userNameRegex)        let peopleName = userNamePredicate.evaluate(with: username)        return peopleName    }}

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