正则表达式用于字母数字,无特殊字符SWIFT iO

我的密码强度标准如下:

长度为8个字符否特殊字符Atleast 1个数字Atleast 1个字母

回答:

更新:

enum PasswordError: String, Error {

case eightCharacters

case oneUppercase

case oneLowercase

case oneDecimalDigit

}

extension String {

func validatePassword() throws {

guard count > 7

else { throw PasswordError.eightCharacters }

guard rangeOfCharacter(from: .uppercaseLetters) != nil

else { throw PasswordError.oneUppercase }

guard rangeOfCharacter(from: .lowercaseLetters) != nil

else { throw PasswordError.oneLowercase }

guard rangeOfCharacter(from: .decimalDigits) != nil

else { throw PasswordError.oneDecimalDigit }

}

}


let myPass = "12345678"

do {

try myPass.validatePassword()

print("valid password action")

} catch let error as PasswordError {

print("Password error:", error)

switch error {

case .eightCharacters:

print("Needs At Least Eight Characters action")

case .oneUppercase:

print("Needs At Least one Uppercase action")

case .oneLowercase:

print("Needs At Least one Lowercase action")

case .oneDecimalDigit:

print("Needs At Least One DecimalDigit action")

}

} catch {

print("error:", error)

}

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