QT treewideget怎么实现显示一个文件及文件夹里面的子文件夹

这个可以使用QTreeview和QFileSystemModel：官方文档例子如下：

It is simple to construct a tree view displaying data from a model. In the following example, the contents of a directory are supplied by a QFileSystemModel and displayed as a tree:

QFileSystemModel *model = new QFileSystemModel

model->setRootPath(QDir::currentPath())

QTreeView *tree = new QTreeView(splitter)

tree->睁搜档setModel(model)

如果要使用QTreeWidget 就要使用QFileInfo对文件夹进行悉乱遍历，挨个添加到QTreeWidget中。有关QFileInfo请参考帮助漏毁文档：http://qt-project.org/doc/qt-4.8/qfileinfo.html

String[] s={"January", "燃雀闹February"岁型, "March", "April"皮罩, "May", "June", "July", "August", "September", "October", "November", "December"}

System.out.print("请输入数字（1-12）：")

BufferedReader br=new BufferedReader(new InputStreamReader(System.in))

String str=br.readLine()

int m=Integer.parseInt(str)

if (m<=0||m>=13)

{

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