double someNumber = 2.000; NSNumberFormatter *formatter = [[NSNumberFormatter alloc] init]; [formatter setNumberStyle:NSNumberFormatterDecimalStyle]; NSLog(@"%@",[formatter stringFromNumber:[NSNumber numberWithDouble:someNumber]]);
打印结果：2
转自： Remove trailing zeros of a double only when necessary
原文：http://www.cnblogs.com/a0000/p/5134841.html