此程序是免费软件， 可在保留版权信息前提下任意分发与使用
通过显示纯色来协助肉眼查找显示器坏点， 避免购买时被奸商刮一刀:)
1.点击任一按钮以全屏显示纯色
2.然后使用方向键反复切换颜色
3.按下 Esc 键则可退出全屏

Avoid installation LCD monitor bad place checks software, search video bad point through showing simple look will help naked eye, when avoiding to buy, be blown by unscrupulous merchant one knife:)
1. clicks either pushbutton to show pure scene with Quan Bing
2. uses directional key to relapse next switch color
3. presses Esc key can exit Quan Bing
This program is freeware or public domain software, random can fall to distribute in premise of reservation copyright information with use