添加NSString分类

　　1.在NSString+Check.h中，添加方法；

　　-(BOOL)checkPhoneNumInput;

　　2.在NSString+Check.m文件中；

-(BOOL)checkPhoneNumInput{

NSString * MOBILE = @"^1(3[0-9]|5[0-35-9]|8[025-9]|70|77)\\d{8}$";

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

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

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

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];

BOOL res1 = [regextestmobile evaluateWithObject:self];

BOOL res2 = [regextestcm evaluateWithObject:self];

BOOL res3 = [regextestcu evaluateWithObject:self];

BOOL res4 = [regextestct evaluateWithObject:self];

if (res1 || res2 || res3 || res4 ) {

return YES;

} else {

return NO;

}

}

　　3.在需要的地方导入#import "NSString+Check.h"

　　4.使用方法：BOOL isPhoneNum = [self.phoneTextField.text checkPhoneNumInput];