正则表达式

ios 正则表达式之验证手机号、邮箱、身份证、银行卡

1、手机号

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+ ( BOOL ) IsPhoneNumber:( NSString  *)number {      NSString  *phoneRegex1=@ "1[34578]([0-9]){9}" ;      NSPredicate  *phoneTest1 = [ NSPredicate  predicateWithFormat:@ "SELF MATCHES %@" ,phoneRegex1];      return   [phoneTest1 evaluateWithObject:number]; }

 2、邮箱

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+ ( BOOL ) IsEmailAdress:( NSString  *)Email {      NSString  *emailCheck = @ "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}" ;      NSPredicate  *emailTest = [ NSPredicate  predicateWithFormat:@ "SELF MATCHES%@" ,emailCheck];      return  [emailTest evaluateWithObject:Email]; }

 3、身份证

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+ ( BOOL ) IsIdentityCard:( NSString  *)IDCardNumber {      if  (IDCardNumber.length <= 0) {          return  NO ;      }      NSString  *regex2 = @ "^(\\d{14}|\\d{17})(\\d|[xX])$" ;      NSPredicate  *identityCardPredicate = [ NSPredicate  predicateWithFormat:@ "SELF MATCHES %@" ,regex2];      return  [identityCardPredicate evaluateWithObject:IDCardNumber]; }

 4、银行卡

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+ ( BOOL ) IsBankCard:( NSString  *)cardNumber {      if (cardNumber.length==0)      {          return  NO ;      }      NSString  *digitsOnly = @ "" ;      char  c;      for  ( int  i = 0; i < cardNumber.length; i++)      {          c = [cardNumber characterAtIndex:i];          if  (isdigit(c))          {              digitsOnly =[digitsOnly stringByAppendingFormat:@ "%c" ,c];          }      }      int  sum = 0;      int  digit = 0;      int  addend = 0;      BOOL  timesTwo =  false ;      for  ( NSInteger  i = digitsOnly.length - 1; i >= 0; i--)      {          digit = [digitsOnly characterAtIndex:i] -  '0' ;          if  (timesTwo)          {              addend = digit * 2;              if  (addend > 9) {                  addend -= 9;              }          }          else  {              addend = digit;          }          sum += addend;          timesTwo = !timesTwo;      }      int  modulus = sum % 10;      return  modulus == 0; }