用keil 做一个60秒秒表，C语言的，通过中断系统做，有两个个按钮，功能：开始，停止。

有一个现成的相关程序，你参考参考 #include #define uchar unsigned char #define uint unsigned int sbit key1=P3^4; sbit key2=P3^5; sbit key3=P3^6; sbit key4=P3^7; uchar code table[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0xb0,0x8e}; uchar num