【代码笔记】iOS-将400电话中间加上-线

- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.

NSLog(@"--iphone--%@",[self getNewPhoneStr1:@"18502368888"]);

}
#pragma -mark -functions
//只需传一个电话进去，可以返回一个处理好的加了-线的400电话字符串，如传4001234567，返回400-123-4567
- (NSString *)getNewPhoneStr1:(NSString *)phonestr
{
if ([phonestr rangeOfString:@"-"].length == 0 && phonestr.length > 6) {
NSMutableString *phoneNumber = [NSMutableString string];
NSString *subStr = [phonestr substringToIndex:3];
[phoneNumber appendFormat:@"%@-",subStr];
subStr = [phonestr substringWithRange:NSMakeRange(3, 3)];
[phoneNumber appendFormat:@"%@-",subStr];
subStr = [phonestr substringWithRange:NSMakeRange(6, phonestr.length-6)];
[phoneNumber appendString:subStr];

phonestr = phoneNumber;
}

return phonestr;
}

2015-10-19 13:52:46.387 将400电话中间加上-线[6123:140629] --iphone--185-023-68888