my9.23（输入输出，写操作）

 #include <iostream>
 #include <fstream>
 using namespace std;
 void write(int data,int len)
 {
     int numberOfData=data;
     int pNum[];
     for (int i=; i<len ; i++)
         pNum[i]= numberOfData;

     fstream dataFile;
     dataFile.open("text.txt",ios::out);
     if(!dataFile)
     {
         cout<<"fail to dataFile"<<endl;
         exit();
     }
     for (int i=;i<len;i++)
         dataFile<<pNum[i];
     dataFile.close();

 }
 int main()
 {
     int a, b;
     cout<<"enter two number, please"<<endl;
     cin>> a >> b ;
     int max , min;
     if (a>b)
         {
              min=b;
              max=a;
         }
     else
         if(a<b)
         {
          min=a ,
          max =b;
         }
         int len=max-min+;
         cout<<"the number is "<<endl;
     for(int v = min ; v<=max ; ++v)
         {
             cout<<v<<" ";
             if((v-min+)%==)
                 cout<<endl;

             write(v,len);
         }
     return  ;
 }