iOS 保留两位小数 不四舍五入

最近项目中用到的小tip

1. 保留两位小数不进行四舍五入

   1).

Nslog("@.2f",floor((2.34567)*100)/100);

第二种方法传送门

-(NSString *)notRounding:(float)price afterPoint:(int)position{
    NSDecimalNumberHandler* roundingBehavior = [NSDecimalNumberHandler decimalNumberHandlerWithRoundingMode:NSRoundDown scale:position raiseOnExactness:NO raiseOnOverflow:NO raiseOnUnderflow:NO raiseOnDivideByZero:NO];
    NSDecimalNumber *ouncesDecimal;
    NSDecimalNumber *roundedOunces;

    ouncesDecimal = [[NSDecimalNumber alloc] initWithFloat:price];
    roundedOunces = [ouncesDecimal decimalNumberByRoundingAccordingToBehavior:roundingBehavior];
    [ouncesDecimal release];
    return [NSString stringWithFormat:@"%@",roundedOunces];
}