程序代码：

#include<stdlib.h> 
#include<stdio.h>
#include<time.h> 
void main() 
{ 
int i,j,k; 
int a1,a2,a3,a4; 
int x1,x2,x3,x4,x; 
do 
{ srand(time(0));
for(i=0;i<1;i++) 
{ 
j=rand()%10000; 
} 

a4=j/1000;a3=(j-a4*1000)/100; 
a2=(j-a4*1000-a3*100)/10;a1=j-a4*1000-a3*100-a2*10; 
} 
while(a1==a2||a1==a3||a1==a4||a2==a3||a2==a4||a3==a4); 
printf("Please input a number:"); 
do 
{ 
scanf("%d",&x); 

x4=x/1000;x3=(x-x4*1000)/100; 
x2=(x-x4*1000-x3*100)/10;x1=x-x4*1000-x3*100-x2*10; 

if(x1==a1) 
{ 
printf("a"); 
goto q1; 
} 
if(x1!=a1) 
{ 
if(x1==a2) 
{ 
printf("b"); 
goto q1; 
} 
if(x1!=a2) 
{ 
if(x1==a3) 
{ 
printf("b"); 
goto q1; 
} 
if(x1!=a3) 
{ 
if(x1==a4) 
{ 
printf("b"); 
goto q1; 
} 
if(x1!=a4) 
{ 
goto q1; 
} 
} 
} 
} 
q1: 
if(x2==a1) 
{ 
printf("b"); 
goto q2; 
} 
if(x2!=a1) 
{ 
if(x2==a2) 
{ 
printf("a"); 
goto q2; 
} 
if(x2!=a2) 
{ 
if(x2==a3) 
{ 
printf("b"); 
goto q2; 
} 
if(x2!=a3) 
{ 
if(x2==a4) 
{ 
printf("b"); 
goto q2; 
} 
if(x2!=a4) 
{ 
goto q2; 
} 
} 
} 
} 
q2: 
if(x3==a1) 
{ 
printf("b"); 
goto q3; 
} 
if(x3!=a1) 
{ 
if(x3==a2) 
{ 
printf("b"); 
goto q3; 
} 
if(x3!=a2) 
{ 
if(x3==a3) 
{ 
printf("a"); 
goto q3; 
} 
if(x3!=a3) 
{ 
if(x3==a4) 
{ 
printf("b"); 
goto q3; 
} 
if(x3!=a4) 
{ 
} 
} 
} 
} 
q3: 
if(x4==a1) 
{ 
printf("b"); 
goto q4; 
} 
if(x4!=a1) 
{ 
if(x4==a2) 
{ 
printf("b"); 
goto q4;
} 
{ 
if(x4==a3) 
{ 
printf("b"); 
goto q4; 
} 
if(x4!=a3) 
{ 
if(x4==a4) 
{ 
printf("a"); 
goto q4; 
} 
if(x4!=a4) 
{ 
goto q4; 
} 
} 
} 
} 
q4: 
printf("\n"); 
} 
while(a1!=x1||a2!=x2||a3!=x3||a4!=x4); 
printf("You are right!\nThanks for your support.\nThe game is made by 胡潇月~"); 
getchar(); 
} 

[此贴子已经被作者于2017-12-12 17:59编辑过]