【提问】错得我束手无策，大侠帮看看 [复制链接]

程序启动时弹出窗口显示：

应用程序发生异常unknow software exception (0xc000001d),位置为0x004217aa。要终止程序，请按确定。

源代码如下；

//main.cpp


#include <QApplication>


#include "tree.h"
int main(int argc, char *argv[])
{
  QApplication   app(argc, argv);

  Tree *treeWidget = new Tree;
  treeWidget->show();
  return app.exec();
}

//tree.h

#ifndef TREE_H
#define TREE_H

#include <QWidget>

class QTreeWidget;
class QTreeWidgetItem;
class Tree : public QWidget
{
  Q_OBJECT
  public:
    Tree(QWidget *parent = 0);
//     virtual ~Tree();
//   protected:
  private slots:
    void currentIndex(QTreeWidgetItem *current);

  private:
    void init();
    QTreeWidget *tree;
};

#endif // TREE_H

//tree.cpp

#include <QTreeWidget>
#include <QTreeWidgetItem>
#include <QHBoxLayout>
#include <QMessageBox>
#include "tree.h"

Tree::Tree(QWidget *parent)
  :QWidget(parent)
{
  init();
}


void Tree::init()
{
  tree = new QTreeWidget;
  tree->setColumnCount(2);
  tree->setHeaderLabels(QStringList()<<tr("first")<<tr("second"));
  connect(tree,SIGNAL( itemClicked(QTreeWidgetItem * , int)),
    this,SLOT(currentIndex(QTreeWidgetItem*)));

  QTreeWidgetItem *caseInformation = new QTreeWidgetItem(tree);
  caseInformation->setText(0,tr("caseInformation"));
  caseInformation->setText(1,tr("caseInformation2"));

  QTreeWidgetItem *general = new QTreeWidgetItem(caseInformation);
  general->setText(0,tr("general"));
  general->setText(1,tr("general2"));

  QTreeWidgetItem *reportInformation = new QTreeWidgetItem(tree,caseInformation);
  reportInformation->setText(0,tr("reportInformation"));

  QTreeWidgetItem *general2 = new QTreeWidgetItem(reportInformation);
  general2->setText(0,tr("general"));
  general2->setText(1,tr("general2"));

  QHBoxLayout *main = new QHBoxLayout;
  main->addWidget(tree);
  main->addStretch(1);
  setLayout(main);
}

void Tree::currentIndex(QTreeWidgetItem *current)
{
    QMessageBox::information(this,tr("information"),
          QString::number(tree->indexOfTopLevelItem(current)));
}文字

? ？？？ 等啊等

你把main里的tree改用实体定义试试，你的错误可以用调试器找到的。