c语言课程设计小结C语言课程设计代码及报告cc

C语言课程设计代码及报告cc

#include<stdio.h>
#include<stdlib.h>
#include<time.h>
main()
{
int i,n,fen=0,p;
int a,b,num;
printf("请输入题目数目：");
scanf("%d",&n);
srand(time(0));
for(i=0;i<n;i++)
{ a=rand()%100;
b=rand()%100;
p=rand()%3;

if(p==0)
{ printf("%d + %d = ",a,b);
scanf("%d",&num);
if(num==a+b)fen++;
}

if (p==1)

{ printf("%d - %d = ",a,b);
scanf("%d",&num);
if(num==a-b)fen++;
}

if (p==2)

{ printf("%d * %d = ",a,b);
scanf("%d",&num);
if(num==a*b)fen++;
}
if (p==3&&b!=0)
{ printf("%d/%d = ",a,b);
scanf("%d",&num);
if(num==a/b)fen++;
}
if(p==3&&b==0)
return n-1;
}
printf("总分 %d，得分%d ",n,fen);
if(fen<(0.8*n))
printf("继续努力,加强练习! ");
if(fen>=(0.8*n))
{if(fen==n)
printf("棒极了! ");}
else printf("请保持! ");
}