visual-c – 错误：不允许使用类限定名

在使用std :: list :: iterator的行中,编译器给出了一条消息“错误：不允许使用类限定名.我不确定是什么问题？有人可以使用我的代码扩展编译器问题.

#include <iostream>
#include <list>

using std::cout;
using std::endl;
using std::list;
using std::list<int>::iterator;
int main( )
{
list<int> listObject;
for (int i = 1; i <= 3; i++)
    listObject.push_BACk(i);
cout << "List contains:\n";
iterator iter;
for (iter = listObject.begin( ); iter != listObject.end( ); iter++)
    cout << *iter << " ";
cout << endl;
cout << "SetTing all entries to 0:\n";
for (iter = listObject.begin( ); iter != listObject.end( ); iter++)
    *iter = 0;
cout << "List now contains:\n";
for (iter = listObject.begin( ); iter != listObject.end( ); iter++)
    cout << *iter << " ";
cout << endl;
return 0;
 }