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小学算术.cpp
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小学算术.cpp
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#include "iostream"
#include<stdlib.h>
#include<time.h>
#include<math.h>
using namespace std;
int main()
{
system("color 94");
cout<<endl;
cout<<"**************************小学数学四则运算试题****************************"<<endl;
cout<<endl;
cout<<endl;
Again:
double Ques1=1;
int Ques01;
int Ques2=1;
int Ques3=100;
char Ques4;
int Ques5=0;
char Ques6='n';
char Ques7='n';
double ans=0;
int right=0;
cout<<" 一.请输入题目数量:";
cin>>Ques1;
Ques01=floor(Ques1);
// cout<<"请输入每行打印题目数(1-5):";
// cin>>Ques2;
cout<<" 二.请输入算式中数值的最大值:";
cin>>Ques3;
cout<<"`````````````````````````````````````````````````````````````````````````"<<endl;
cout<<"开始答题:"<<endl;
srand(time(NULL));
while(1)
{
if(Ques1<1)
{
cout<<"输入有误,请重新输入题目数量:";
cin>>Ques1;
Ques01=floor(Ques1);
}
else
{
for(int j=0; j<Ques01; j++)
{
if(j!=0&&j%Ques2==0)
{
for(int i=0; i<Ques5; i++)
{
cout<<endl;
}
}
int num1=rand()%Ques3;
int num2=rand()%Ques3;
int sign=rand()%4;
switch(sign)
{
case 0:
cout<<j+1<<":"<<" "<<num1<<"+"<<num2<<"="<<" ";
cin>>ans;
if(ans==num1+num2)
{
cout<<"正确"<<endl;
right++;
}
else
{
cout<<"答错了!"<<endl;
cout<<"正确答案是:"<<num1+num2<<endl;
}
break;
case 1:
if(Ques7=='y')
{
cout<<j+1<<":"<<" "<<num1<<"-"<<num2<<"="<<" ";
cin>>ans;
if(ans==num1-num2) {
cout<<"正确"<<endl;
right++;
}
else
{
cout<<"答错了!"<<endl;
cout<<"正确答案是:"<<num1-num2<<endl;
}
}
else
{
if(num1>num2)
{
cout<<j+1<<":"<<" "<<num1<<"-"<<num2<<"="<<" ";
cin>>ans;
if(ans==num1-num2)
{
cout<<"正确"<<endl;
right++;
}
else
{
cout<<"答错了!"<<endl;
cout<<"正确答案是:"<<num1-num2<<endl;
}
}
else
{
cout<<j+1<<":"<<" "<<num2<<"-"<<num1<<"="<<" ";
cin>>ans;
if(ans==num2-num1)
{
cout<<"正确"<<endl;
right++;
}
else
{
cout<<"答错了!"<<endl;
cout<<"正确答案是:"<<num2-num1<<endl;
}
}
}
break;
case 2:
cout<<j+1<<":"<<" "<<num1<<"*"<<num2<<"="<<" ";
cin>>ans;
if(ans==num1*num2)
{
cout<<"正确"<<endl;
right++;
}
else
{
cout<<"答错了!"<<endl;
cout<<"正确答案是:"<<num1*num2<<endl;
}
break;
case 3:
if(num2!=0)
{
int t=rand()%30;
int num3=num1*t;
cout<<j+1<<":"<<" "<<num3<<"/"<<num1<<"="<<" ";
cin>>ans;
if(ans==(float)num3/(float)num1)
{
cout<<"正确"<<endl;
right++;
}
else
{
cout<<"答错了!"<<endl;
cout<<"正确答案是:"<<(float)num3/(float)num1<<endl;
}
}
else
{
j--;
}
break;
}
}
break;
}
}
cout<<"共答对"<<right<<"道题;"<<"答错"<<Ques01-right<<"道题。";
cout<<"继续努力!"<<endl;
cout<<endl;
while(1)
{
cout<<"还需要继续出题还是退出?(y:继续出题;n:退出)";
cin>>Ques6;
if(Ques6=='y')
{
goto Again;
}
if(Ques6=='n')
{
goto Exit;
}
else
{
cout<<"输入有误,请重新输入:";
}
}
Exit:
return 0;
}