qt4 打开文件的简单函数，很容易看懂的，学习之用-Qt4 open files of simple function, is very easy to understand and study with

文件操作的封装类，类结束时会自动关闭文件，避免有些文件打开后忘记关闭的情况。 Private mlogFileAccess As CFile Set mlogFileAccess = New CFile mlogFileAccess.OpenFile mlogFileName, omAppend Print #mlogFileAccess.handle, LogText -Wrapper class for file operations at the end of the

使用QT实现打开选择文件对话框，方便快捷-open the file dialog using QT