GIT ：地址
GIT 名字 ： jujijuji
学号后5位 ： 061224
博客地址 ： 博客地址
作业链接 ： 第二次作业
（1）环境配置
vs配置
GIT下载
项目地址的复制
GIT配置
（2）代码
···
include "pch.h"
include
include<stdlib.h>
include<time.h>
include
using namespace std;
int num(int x)
{
return rand() % 100;
}
int sign()
{
return rand() % 4;
}
int main()
{
int a, i, j, n;
cout << "请输入题目的数量：";
cin >> a;
srand(time(NULL));
ofstream examplefile("demo.txt");
while (1)
{
if (examplefile.is_open()) {
if (a < 1)
{
cout << "该输入不符合要求";
cin >> a;
}
else
{
for (j = 0; j < a; j++)
{
i = sign();
switch (i)
{
case 0:
cout << j + 1 << ":" << " " << num(1) << "-" << num(2) << "=" << "\n";
examplefile << j + 1 << ":" << " " << num(1) << "+" << num(2) << "=" << "\n";
break;
case 1:
cout << j + 1 << ":" << " " << num(1) << "-" << num(2) << "=" << "\n";
examplefile << j + 1 << ":" << " " << num(1) << "-" << num(2) << "=" << "\n";
break;
case 2:
cout << j + 1 << ":" << " " << num(1) << "" << num(2) << "=" << "\n";
examplefile << j + 1 << ":" << " " << num(1) << "" << num(2) << "=" << "\n";
break;
case 3:
n = num(2);
if (n != 0)
{
cout << j + 1 << ":" << " " << num(1) << "/" << n << "=" << "\n";
examplefile << j + 1 << ":" << " " << num(1) << "/" << n << "=" << "\n";
}
else
{
j--;
}
break;
}
}
break;
}
}
}
examplefile.close();
return 0;
}
···
感想
由于投入时间太少导致完成质量比较差。继续完成还没有实现的功能。
