iOS十進制切割格式轉換

//@"123456789" 轉換后 @"123,456,789"

@interface NSString (num)- (NSString *)money;@end@implementation NSString (num)- (NSString *)money{NSNumberFormatter *numFormat = [[NSNumberFormatter alloc] init];[numFormat setNumberStyle:NSNumberFormatterDecimalStyle];NSNumber *num = [NSNumber numberWithDouble:[self doubleValue]];return [numFormat stringFromNumber:num];
}
@end