- (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;

    }

}

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.