【代码笔记】浮点数处理并去掉多余的0

- (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.