VC++环境下的对话框使用，能够查询成绩，并且能够以0.1分加减。




File list:
Ex_18
....\Debug
....\.....\Ex_18.exe
....\.....\Ex_18.ilk
....\.....\Ex_18.obj
....\.....\Ex_18.pch
....\.....\Ex_18.pdb
....\.....\Ex_18.res
....\.....\Ex_18Dlg.obj
....\.....\StdAfx.obj
....\.....\vc60.idb
....\.....\vc60.pdb
....\res
....\...\Ex_18.ico

....\...\Ex_18.rc2
....\Ex_18.aps
....\Ex_18.clw
....\Ex_18.cpp
....\Ex_18.dsp
....\Ex_18.dsw
....\Ex_18.h
....\Ex_18.opt
....\Ex_18.plg
....\Ex_18.rc
....\Ex_18Dlg.cpp
....\Ex_18Dlg.h
....\ReadMe.txt
....\Resource.h
....\StdAfx.cpp
....\StdAfx.h