第十六周

#include <iostream>   #include <fstream>   #include<cstring>   #include<cstdlib>   using namespace std;  int main()  {     ifstream readFile;      ofstream writeFile;      char ch[100];     readFile.open("a.txt", ios::in);      if(!readFile)      {          cerr<<"open error!"<<endl;          exit(1);      }      writeFile.open("b.txt", ios::out);      while (!readFile.eof())      {          readFile.getline(ch,100,'\n');          writeFile.write(ch,strlen(ch));         writeFile.write("\n",1);      }      readFile.close();      writeFile.close();      cout << "Finish!" << endl;      return 0;  }