采用qt编写的文件保存与读取程序，点击界面中的保存按键，可以对对话框中输入的数据进行保存，点击读取按键，可以将保存的内容读取出来-Save the file using qt prepared and read the program, click on the Save button interface, you can enter data in the dialog box to save, click the Read button, you can save the contents of the read out