objective-c – 变量范围目标C.

(DoublE) someMethod{
int x;
[self.stack objectATindex:x];
x++;
}@H_674_22@ 
 
阅读完评论之后,我尝试创建一个替换x的属性,这里是我写的但是我收到一条错误警告,声明“本地声明”_LOCATIOn“隐藏实例变量”这是什么意思？
 
 
 
 
@property (nonatomiC) int LOCATIOn;
@synthesize LOCATIOn=_LOCATIOn;

-(int) LOCATIOn{
    if(!_LOCATIOn){
        int _LOCATIOn = 0;
     //warning is here 
    return _LOCATIOn;
     }
_LOCATIOn++;
return _LOCATIOn;

}

 (DoublE) someMethod{
int x;
[self.stack objectATindex:self.LOCATIOn];
x++;
}@H_674_22@