能够显示4个汉字的源程序，通过硬件调试。本程序带了Proteus仿真，可以方便地进行调试，改变汉字点阵码可以显示自己想要的汉字。-Able to show four characters of the source, through hardware debug. This procedure with the Proteus simulation, debugging can easily change the characters dot matrix code can show the characters you want.