矩阵键盘扫描代码(C语言)(共2页).docx

精选优质文档-倾情为你奉上#include#define unchar unsigned char#define unint unsigned intunsigned char code dula=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71;unsigned char code wela=0,1,2,3,4,5,6,7;unsigned char num,key;unsigned char keyscan();unchar Keyscan();void delay(int z)int x,y;for(x=z;x=0;x-)for(y=0;y=148;y+);void main()P2=1;while(1)P1 = 0xf0;if(P1 != 0xf0)/判断有无