最近项目里需要判断是否为手机号并发送验证码的功能，一下是实现方法。不过这个方法还是有些不足，只能判断输入的11位数的号段是否正确，无法判断手机号是否存在。不过勉强可以使用！
+ (NSString *)valiMobile:(NSString *)mobile{
if (mobile.length < 11)
{
return @"手机号长度只能是11位";
}else{
NSString *CM_NUM = @"^((13[4-9])|(147)|(15[0-2,7-9])|(178)|(18[2-4,7-8]))\d{8}|(1705)\d{7}$";
NSString *CU_NUM = @"^((13[0-2])|(145)|(15[5-6])|(176)|(18[5,6]))\d{8}|(1709)\d{7}$";
NSString *CT_NUM = @"^((133)|(153)|(177)|(18[0,1,9]))\d{8}$";
NSPredicate *pred1 = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CM_NUM];
BOOL isMatch1 = [pred1 evaluateWithObject:mobile];
NSPredicate *pred2 = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CU_NUM];
BOOL isMatch2 = [pred2 evaluateWithObject:mobile];
NSPredicate *pred3 = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CT_NUM];
BOOL isMatch3 = [pred3 evaluateWithObject:mobile];
if (isMatch1 || isMatch2 || isMatch3) {
return nil;
}else{
return @"请输入正确的*****号码";
}
}
return nil;
}