文件问题

边走¤边爱

如何将a.txt文件的内容
平均分配到,
b.txt和 c.txt中

森林的眼泪

1.把a.txt的文件内容放进vector<string> svec中
2.分别读取svec的一半内容放到 b.txt和 c.txt中

1. #include <fstream>
   
2. #include <vector>
   
3. #include <iostream>
   
4. #include <string>
   
5. using namespace std;
   
6. int main()
   
7. {
   
8. ifstream infile("D:\\a.txt",ios::in);
   
9. if(!infile)
   
10. {
    
11. cout<<"can't open a.txt"<<endl;
    
12. exit(-1);
    
13. }
    
14. vector<string> svec;
    
15. string word;
    
16. while(infile>>word)
    
17. svec.push_back(word);
    
18. infile.close();
    
19. ofstream outfile1("D:\\b.txt");
    
20. if(!outfile1)
    
21. {
    
22. cout<<"can't open b.txt"<<endl;
    
23. exit(-1);
    
24. }
    
25. vector<string>::const_iterator iter = svec.begin();
    
26. int ct = 0;
    
27. while(iter != svec.begin()+svec.size()/2)
    
28. {
    
29. ct++;
    
30. if(ct == 15)
    
31. outfile1<<endl;
    
32. outfile1<<*iter<<' ';
    
33. iter++;
    
34. }
    
35. outfile1.close();
    
36. ofstream outfile2("D:\\c.txt");
    
37. if(!outfile2)
    
38. {
    
39. cout<<"can't open c.txt"<<endl;
    
40. exit(-1);
    
41. }
    
42. iter = svec.begin()+svec.size()/2;
    
43. ct = 0;
    
44. while(iter != svec.end())
    
45. {
    
46. ct++;
    
47. if(ct == 15)
    
48. outfile2<<endl;
    
49. outfile2<<*iter<<' ';
    
50. iter++;
    
51. }
    
52. outfile2.close();
    
53. return 0;
    
54. }
    
55. 
    
56. 
    

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