iOS中用正则表达式验证邮箱和手机号

正则表达式：使用单个字符串来描述、匹配一系列符号某个句法规则的字符串；

1、验证邮箱

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

return [emailTest
evaluateWithObject:email];
}
2、验证手机号
1、简单的判断方法

- (BOOL)validatePhone:(NSString *)phone
{
NSString *phoneRegex=@"1[3|4|5|7|8][0-9]{9}";
NSPredicate *phoneTest=[NSPredicate
predicateWithFormat:@"SELF MATCHES %@",phoneRegex];
return [phoneTest
evaluateWithObject:phone];
}
2、更精确的方法
//正则判断手机号码格式

+ (BOOL)validatePhone:(NSString *)phone

{

/**

* 手机号码

* 移动：134[0-8],135,136,137,138,139,150,151,157,158,159,182,187,188

* 联通：130,131,132,152,155,156,185,186

* 电信：133,1349,153,180,189

*/

NSString * MOBILE = @"^1(3[0-9]|5[0-35-9]|8[025-9])\\d{8}$";

/**

10 * 中国移动：China Mobile

11 * 134[0-8],135,136,137,138,139,150,151,157,158,159,182,187,188

12 */

NSString * CM = @"^1(34[0-8]|(3[5-9]|5[017-9]|8[278])\\d)\\d{7}$";

/**

15 * 中国联通：China Unicom

16 * 130,131,132,152,155,156,185,186

17 */

NSString * CU = @"^1(3[0-2]|5[256]|8[56])\\d{8}$";

/**

20 * 中国电信：China Telecom

21 * 133,1349,153,180,189

22 */

NSString * CT = @"^1((33|53|8[09])[0-9]|349)\\d{7}$";

/**

25 * 大陆地区固话及小灵通

26 * 区号：010,020,021,022,023,024,025,027,028,029

27 * 号码：七位或八位

28 */

// NSString * PHS = @"^0(10|2[0-5789]|\\d{3})\\d{7,8}$";

NSPredicate *regextestmobile = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", MOBILE];

NSPredicate *regextestcm = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CM];

NSPredicate *regextestcu = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CU];

NSPredicate *regextestct = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CT];

if (([regextestmobile evaluateWithObject:phone] == YES)

|| ([regextestcm evaluateWithObject:phone] == YES)

|| ([regextestct evaluateWithObject:phone] == YES)

|| ([regextestcu evaluateWithObject:phone] == YES))

{

if([regextestcm evaluateWithObject:phone] == YES) {

NSLog(@"China Mobile");

} else if([regextestct evaluateWithObject:phone] == YES) {

NSLog(@"China Telecom");

} else if ([regextestcu evaluateWithObject:phone] == YES) {

NSLog(@"China Unicom");

} else {

NSLog(@"Unknow");

}

return YES;

}

else

{

return NO;

}

}

其中 NSPredicate 是一个Foundation类,是用来查询的，原理和用法都类似于SQL中的where；