//计算还款日与当前时间的差

- (int)intervalSinceNow: (NSString *) theDate {

//    NSDateFormatter *formatter=[[NSDateFormatter alloc] init];

//    [formatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];

//    NSDate *date = [formatter dateFromString:theDate];

//

//    NSString *string = [formatter stringFromDate:[NSDate date]];

//    NSLog(@"->>> %@", string);

//

//    NSTimeInterval late = [date timeIntervalSince1970]*1;

//

//    NSDate* dat = [NSDate dateWithTimeIntervalSinceNow:0];

//    NSTimeInterval now = [dat timeIntervalSince1970]*1;

//    NSString *timeString = @"";

//

//    NSTimeInterval cha = now - late;

//

//    if (cha/86400 > 1) {

//        timeString = [NSString stringWithFormat:@"%f", cha/86400];

//        timeString = [timeString substringToIndex:timeString.length-7];

//        return [timeString intValue];

//    }

//    return -1;

NSDateFormatter *date=[[NSDateFormatter alloc] init];

[date setDateFormat:@"yyyy-MM-dd HH:mm:ss"];

NSDate *d=[date dateFromString:theDate];

NSTimeInterval late=[d timeIntervalSince1970]*1;

NSDate* dat = [NSDate dateWithTimeIntervalSinceNow:0];

NSTimeInterval now=[dat timeIntervalSince1970]*1;

NSString *timeString=@"";

NSTimeInterval cha=now-late;

if (cha/86400>1)

{

timeString = [NSString stringWithFormat:@"%f", cha/86400];

timeString = [timeString substringToIndex:timeString.length-7];

return [timeString intValue];

}

return -1;

}