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#include <reg52.h>
#define uchar unsigned char
#define uint unsigned int
#define duan P1
#define wei P3
sbit key1 = P2 ^ 3; /* 设置 */
sbit key2 = P2 ^ 4; /* 加 */
sbit key3 = P2 ^ 5; /* 减 */
sbit key4 = P2 ^ 6; /* 启动 */
sbit key5 = P2 ^ 7;
sbit out = P2 ^ 2; /* 输出控制 ，低电平有效 */
sbit di = P2 ^ 0; /* 蜂鸣器 */
sbit water = P2 ^ 1;
bit flag = 0, flag1 = 0, shan = 0;
uchar knum, shan_cont;
uchar shi = 0, fen = 0, miao = 0, cont, cont1, cont2;
uchar code duanma[] = { 0x3f, 0x06, 0x5b, 0x4f, 0x66, 0x6d, 0x7d, 0x07, 0x7f, 0x6f }; /* 共阴段码表 */
/* uchar code weima[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};//位码 */
uchar code weima[] = { 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80 }; /* 位码 加反相器用 */
void delay( uint z )
{
uint x, y;
for ( x = z; x > 0; x-- )
for ( y = 114; y > 0; y-- )
