答：unsigned char code tab[]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F};

Unsigned char k;

While(1)

{for(k=0;k<10;k++){

P2 = tab[k]; // P1.0=0，LED 点亮Delay(); //延时}}

答：unsigned char i;unsigned char temp;

P1 = 0xff; //十六进制全 1,熄灭所有 LED

While(1){

Temp = 0x01; //第一位为 1

For (i=0;i<8;i++){

P1 = ~ temp; //temp 值取反送 P1 口

Delay();

Temp = temp << 1 ; //temp 值左移一位while(SW==0);}}

。