求c编写小学生数学测试软件的源代码

//#include

#include

usingnamespacestd;

intmain()

{

inti,j,k,l=0,n;

cout<<************************************小学数学测试*******************************<<endl;

cout<<请选择想测试的题型:1.+2.-3.*4./:;

cin>>i;

if(i==1)

{

cout<<请输入测试题的个数：;

cin>>j;

for(intk1=0;k1<j;k1++)

{

srand((unsigned)time(NULL));

intx1=rand()%100;

intx2=rand()%100;

cout<<x1<<+<<x2<<=:;

cin>>k;

if(k==x1+x2){

cout<<回答正确！<<endl;

l++;

}

else

cout<<回答错误！正确答案为：<<x1+x2<<endl;

}

}

elseif(i==2)

{

cout<<请输入测试题的个数：;

cin>>j;

for(intk1=0;k1<j;k1++)

{

srand((unsigned)time(NULL));

intx1=rand()%100;

intx2=x1+rand()%50;

cout<<x2<<-<<x1<<=:;

cin>>k;

if(k==x2-x1){

cout<<回答正确！<<endl;

l++;

}

else

cout<<回答错误！正确答案为：<<x2-x1<<endl;

}

}

elseif(i==3)

{

cout<<请输入测试题的个数：;

cin>>j;

for(intk1=0;k1<j;k1++)

{

srand((unsigned)time(NULL));

intx1=rand()%100;

intx2=rand()%100;

cout<<x1<<*<<x2<<=:;

cin>>k;

if(k==x1*x2){

cout<<回答正确！<<endl;

l++;

}

else

cout<<回答错误！正确答案为：<<x1*x2<<endl;

}

}

elseif(i==4)

{

cout<<请输入测试题的个数：;

cin>>j;

for(intk1=0;k1<j;k1++)

{

srand((unsigned)time(NULL));

intx1=rand()%100+1;

intx2=x1*(rand()%10);

cout<<x2<</<<x1<<=:;

cin>>k;

if(k==x2/x1){

cout<<回答正确！<<endl;

l++;

}

else

cout<<回答错误！正确答案为：<<x2/x1<<endl;

}

}

cout<<这次测试你作对的题目的个数为<<l<<个<<endl;

cout<<是否继续测试：0.退出1.继续:;

cin>>n;

if(n==1){

returnmain();}

//system(PAUSE);

return0;

}

测试过几次应该没错误的！