NSNumber 舍入到零小数位
it1352
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问题说明
如何将 NSNumber 舍入到零小数位，在以下行中似乎保留小数位:
How do I round an NSNumber to zero decimal spaces, in the following line it seems to keep the decimal spaces:
NSNumber holidayNightCount = [NSNumber numberWithDouble:sHolidayDuration.value];
正确答案
#1
如果你只需要一个整数，为什么不直接使用 int
If you only need an integer why not just use an int
int holidayNightCount = (int)sHolidayDuration.value;
根据定义，int 没有小数位
By definition an int has no decimal places
如果您需要使用 NSNumber，您可以将 Double 转换为 Int，然后使用 int 创建您的 NSNumber.
If you need to use NSNumber, you could just cast the Double to Int and then use the int to create your NSNumber.
int myInt = (int)sHolidayDuration.value;
NSNumber holidayNightCount = [NSNumber numberWithInt:myInt];
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