在treeWidget中加入控件

 //在treeWidget中加入控件
 void Form::addSpaceF()
 {
     //删除按钮分区
     treeWidget->removeItemWidget(addSpace,0);

     newItem=new QTreeWidgetItem;
     addSpace=new QTreeWidgetItem;
     addPlate=new QTreeWidgetItem;

     //新增分区
     treeWidget->addTopLevelItem(newItem);

     //板块顺序
     QLineEdit *sortEdit=new QLineEdit;
     treeWidget->setItemWidget(newItem,0,sortEdit );

     //主题名
     QLineEdit *nameEdit=new QLineEdit;
     treeWidget->setItemWidget(newItem,1,nameEdit );

     //版主
     QPushButton *userBtn=new QPushButton(tr("null/addUser"));
     treeWidget->setItemWidget(newItem,2,userBtn );

     //增加分区按钮
     QPushButton *addBtn=new QPushButton(tr("add space"));
     treeWidget->addTopLevelItem(addSpace);
     treeWidget->setItemWidget(addSpace,0,addBtn );
     connect(addBtn,SIGNAL(clicked()),this,SLOT(addSpaceF()));

     //批量编辑
     QCheckBox *editBox=new QCheckBox;
     QPushButton *editBtn=new QPushButton(tr("edit"));
     QPushButton *deleteBtn=new QPushButton(tr("delete"));
     QHBoxLayout *editLayout=new QHBoxLayout;
     editLayout->addWidget(editBox);
     editLayout->addWidget(editBtn);
     editLayout->addWidget(deleteBtn);
     QWidget *edit=new QWidget;
     edit->setLayout(editLayout);
     treeWidget->setItemWidget(newItem,3,edit);

 }