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dierci
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dierci
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#include <iostream>
#include <cstdio>
#include<fstream>
#include<string.h>
#include <cstdlib>
#include <time.h>
#include<iomanip>
using namespace std;
struct data
{
int num[1000];
float num1[1000];
}p[1000];
void Have(int NUM,int Max,int Num,int wenjian,char yunsuanfu[],int decimal) //带括号
{
int flag1=0,flag2=0;
int k1,k2,op,i,j,len;
len=strlen(yunsuanfu);
ofstream outfile;
outfile.open("D:\\a.txt");
for(i=0;i<NUM;i++)
{
k1=-1;
k2=-1;
while(1)
{
if(k1>k2||k2-k1<2||k2>Num)
{
k1=int(rand()%(Num-1));
k2=int(rand()%(Num-1));
}
else
break;
}
for(j=0;j<Num;j++)
{
op=int(rand()%len);
if(decimal==1)
{
p[i].num[j]=rand()%Max+1;
p[i].num[j+1]=rand()%Max+1;
}
if(decimal==0)
{
p[i].num1[j]=rand()%Max*0.3;
p[i].num1[j+1]=rand()%Max*0.7;
}
if(j<Num-1)
{
if(j==k1)
{
if(decimal==1)
{
cout<<"("<<p[i].num[j]<<" "<<yunsuanfu[op]<<" ";
flag1=1;
if(wenjian==1)
outfile<<"("<<p[i].num[j]<<" "<<yunsuanfu[op]<<" ";
}
else
{
cout<<"("<<setprecision(1)<<std::fixed<<p[i].num1[j]<<" "<<yunsuanfu[op]<<" ";
flag1=1;
if(wenjian==1)
outfile<<"("<<setprecision(1)<<std::fixed<<p[i].num1[j]<<" "<<yunsuanfu[op]<<" ";
}
}
else if(j==k2)
{
if(decimal==1)
{
cout<<p[i].num[j]<<")"<<" "<<yunsuanfu[op]<<" ";
flag2=1;
if(wenjian==1)
outfile<<p[i].num[j]<<")"<<" "<<yunsuanfu[op]<<" ";
}
else
{
cout<<setprecision(1)<<std::fixed<<p[i].num1[j]<<")"<<" "<<yunsuanfu[op]<<" ";
flag2=1;
if(wenjian==1)
outfile<<setprecision(1)<<std::fixed<<p[i].num1[j]<<")"<<" "<<yunsuanfu[op]<<" ";
}
}
else
{
if(decimal==1)
{
cout<<p[i].num[j]<<" "<<yunsuanfu[op]<<" ";
if(wenjian==1)
outfile<<p[i].num[j]<<" "<<yunsuanfu[op]<<" ";
}
else
{
cout<<setprecision(1)<<std::fixed<<p[i].num1[j]<<" "<<yunsuanfu[op]<<" ";
if(wenjian==1)
outfile<<setprecision(1)<<std::fixed<<p[i].num1[j]<<" "<<yunsuanfu[op]<<" ";
}
}
}
else
{
if(flag1==1&&flag2==0)
{
if(decimal==1)
{
cout<<p[i].num[j]<<")"<<" ";
if(wenjian==1)
outfile<<p[i].num[j]<<")"<<" ";
}
else
{
cout<<setprecision(1)<<std::fixed<<p[i].num1[j]<<')';
if(wenjian==1)
outfile<<setprecision(1)<<std::fixed<<p[i].num1[j]<<')';
}
}
else
{
if(decimal==1)
{
cout<<p[i].num[j]<<" ";
if(wenjian==1)
outfile<<p[i].num[j]<<" ";
}
else
{
cout<<setprecision(1)<<std::fixed<<p[i].num1[j];
if(wenjian==1)
outfile<<setprecision(1)<<std::fixed<<p[i].num1[j];
}
}
}
}
cout<<"= "<<"\n";
if(wenjian==1)
outfile<<"= "<<"\n";
}
outfile.close();
}
void No(int NUM,int Max,int Num,int wenjian,char yunsuanfu[],int decimal) //无括号
{
int i,j,len,op;
len=strlen(yunsuanfu);
ofstream outfile;
outfile.open("D:\\a.txt");
for(i=0;i<NUM;i++)
{
for(j=0;j<Num;j++)
{
op=int(rand()%len);
if(decimal==1)
{
p[i].num[j]=rand()%Max+1;
p[i].num[j+1]=rand()%Max+1;
}
if(decimal==0)
{
p[i].num1[j]=rand()%Max*0.3;
p[i].num1[j+1]=rand()%Max*0.7;
}
if(j<Num-1)
{
if(decimal==1)
{
cout<<p[i].num[j]<<" "<<yunsuanfu[op]<<" ";
if(wenjian==1)
outfile<<p[i].num[j]<<" "<<yunsuanfu[op]<<" ";
}
else
{
cout<<setprecision(1)<<std::fixed<<p[i].num1[j]<<" "<<yunsuanfu[op]<<" ";
if(wenjian==1)
outfile<<setprecision(1)<<std::fixed<<p[i].num1[j]<<" "<<yunsuanfu[op]<<" ";}}
if(j==Num-1)
{
if(decimal==1)
{
cout<<p[i].num[j]<<" ";
if(wenjian==1)
outfile<<p[i].num[j]<<" ";
}
else
{
cout<<setprecision(1)<<std::fixed<<p[i].num1[j];
if(wenjian==1)
outfile<<setprecision(1)<<std::fixed<<p[i].num1[j];
}
}
}
cout<<"= "<<"\n";
if(wenjian==1)
outfile<<"= "<<"\n";
}
outfile.close();
}
int main()
{
int NUM,Num,Max;
int kuohao,wenjian,decimal;
char yunsuanfu[5];
cout<<"----------------------------------------------------------\n";
cout<<"请输入共有多少组运算表达式:";
cin>>NUM;
cout<<"----------------------------------------------------------\n";
cout<<"请输入运算数的最大值: ";
cin>>Max;
cout<<"----------------------------------------------------------\n";
cout<<"请输入有无括号(1代表有括号、0代表无括号): ";
cin>>kuohao;
cout<<"----------------------------------------------------------\n";
cout<<"请选择是否将结果存到文件中(1代表存放、0代表不存放): ";
cin>>wenjian;
cout<<"----------------------------------------------------------\n";
cout<<"请选择是小数还是整数(1代表整数、0代表小数):";
cin>>decimal;
cout<<"----------------------------------------------------------\n";
cout<<"请输入的运算符:";
cin>>yunsuanfu;
cout<<"----------------------------------------------------------\n";
Num=-1;
while(1)
{
if(Num<2||Num>8)
Num=int(rand()%10); //定义每个表达式有多少个参与运算的实数
else
break;
}
if(kuohao==1)
{
Have(NUM,Max,Num,wenjian,yunsuanfu,decimal);
}
else if(kuohao==0)
{
No(NUM,Max,Num,wenjian,yunsuanfu,decimal);
}
system("pause");
return 0;
}