【代码笔记】浮点数处理并去掉多余的0

一，代码。

- (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view.
 NSLog(@"--float-%@-",[self stringDisposeWithFloat:9.000899990000]); } #pragma -mark -functions
//浮点数处理并去掉多余的0
-(NSString *)stringDisposeWithFloat:(float)floatValue { NSString *str = [NSString stringWithFormat:@"%f",floatValue]; long len = str.length; for (int i = 0; i < len; i++) { if (![str  hasSuffix:@"0"]) break; else str = [str substringToIndex:[str length]-1]; } if ([str hasSuffix:@"."])//避免像2.0000这样的被解析成2.
 { //s.substring(0, len - i - 1);
        return [str substringToIndex:[str length]-1]; } else { return str; } }

 

二，输出。

2015-10-16 09:53:45.765 浮点数处理并去掉多余的0[1554:47555] --float-9.0009-
2015-10-16 09:53:48.824 浮点数处理并去掉多余的0[1554:47619] Terminating since there is no system app.