自学QT之报错： name lookup of 'i' changed for ISO 'for' scoping

#include <QCoreApplication>
#include <QList>
#include <QDebug>
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
QList<int> mylist;
for(int i=0;i<10;i++)
{
mylist.append(i);
}
QMutableListIterator<int> iter(mylist);
while(iter.hasNext())
{
for(i=0;i<8;i++)//没有指定i的类型
{

if(i==5)
{
iter.remove();
}
iter.next();
}
break;

}
iter.toFront();

while(iter.hasNext())
{

qDebug()<<iter.next();

}

return a.exec();
}