截取指定小数位的值

/**

* 截取指定小数位的值

*

* price 目标数据

* position 有效小数位

*

* return 截取后数据

*/

+ (NSString *)notRounding:(float)price afterPoint:(NSInteger)position {

NSDecimalNumberHandler* roundingBehavior = [NSDecimalNumberHandler decimalNumberHandlerWithRoundingMode:NSRoundPlain scale:position raiseOnExactness:NO raiseOnOverflow:NO raiseOnUnderflow:NO raiseOnDivideByZero:NO];

NSDecimalNumber *ouncesDecimal;

NSDecimalNumber *roundedOunces;

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

}