文件自动拆分

Posted 2020-09-18 wqpkita

将一个文件中同一编号的数据拆分，分别放到新建的文件夹中去。

     

  5 #include <iostream>
  6 #include <string>
  7 #include <sstream>
  8 #include <fstream>
  9 #include <vector>
 10 #include <direct.h> //创建文件夹头文件
 11 #include<time.h>    //获取时间头文件
 12 using namespace std;
 13 
 14 
 15 void getFiles( string path, vector<string>& files, vector<string> &ownname)  
 16 {  
 17     /*files存储文件的路径及名称(eg.   C:\\Users\\WUQP\\Desktop\\test_devided\\data1.txt)
 18      ownname只存储文件的名称(eg.     data1.txt)*/
 19     
 20     //文件句柄  
 21     long   hFile   =   0;  
 22     //文件信息  
 23     struct _finddata_t fileinfo;  
 24     string p;  
 25     if((hFile = _findfirst(p.assign(path).append("\\\\*").c_str(),&fileinfo)) !=  -1)  
 26     {  
 27         do  
 28         {  
 29             //如果是目录,迭代之  
 30             //如果不是,加入列表  
 31             if((fileinfo.attrib &  _A_SUBDIR))  
 32             {  /*
 33                 if(strcmp(fileinfo.name,".") != 0  &&  strcmp(fileinfo.name,"..") != 0)  
 34                     getFiles( p.assign(path).append("\\\\").append(fileinfo.name), files, ownname ); */ 
 35             }  
 36             else  
 37             {  
 38                 files.push_back(p.assign(path).append("\\\\").append(fileinfo.name) );  
 39                 ownname.push_back(fileinfo.name);
 40             }  
 41         }while(_findnext(hFile, &fileinfo)  == 0);  
 42         _findclose(hFile);  
 43     }  
 44 }  
 45 
 46 int main()
 47 {
 48 
 49     clock_t start_time=clock(); //开始时间
 50 
 51     int detector_seq;
 52     int sequence;
 53     int arrive_time;
 54     
 55     char * filePath = "C:\\\\Users\\\\WUQP\\\\Desktop\\\\test_devided";  
 56     char * addfilePath = "\\\\processed_data";
 57     char processedfilePath[100];
 58     strcpy_s(processedfilePath, filePath);
 59     strcat_s(processedfilePath, addfilePath);
 60     cout << processedfilePath << endl;
 61     _mkdir(processedfilePath);
 62 
 63     vector<string> files;  
 64     vector<string> ownname;
 65 
 66     //获取该路径下的所有文件  
 67     getFiles(filePath, files, ownname);  
 68     int size = files.size();  
 69     for (int i = 0;i < size;i++)  
 70     {  
 71         cout<<endl; 
 72         int num_receiver_times = 0;
 73         string in_str;
 74 
 75         //检查每个文件中的事件数目
 76         ifstream in_File(files[i].c_str());
 77         if (in_File.is_open())
 78         {
 79             cout<<files[i].c_str() <<"   is open!"<< endl;
 80             while (in_File >> detector_seq >> sequence >> arrive_time)
 81             {
 82                 if(detector_seq == 0) 
 83                 {
 84                     ++num_receiver_times;
 85                 }
 86                 else break;
 87             }
 88         }
 89         in_File.close();
 90 
 91         //根据事件数目动态分开各事件的数据
 92         cout << "the sources of this file is " << num_receiver_times << endl;
 93         vector<string>* p = new vector<string>[num_receiver_times];
 94         ifstream in_File_(files[i].c_str());
 95         if (in_File_.is_open())
 96         {
 97             while (getline(in_File_, in_str))
 98             {
 99                 for (int j=0; j<num_receiver_times; j++)
100                 {
101                     p[j].push_back(in_str);
102                     if ( (j+1) % num_receiver_times != 0 )
103                     {
104                         getline(in_File_, in_str);
105                     }
106                 }
107             }
108         }
109         in_File_.close();
110 
111         //分别将不同的数据写入不同的文件
112         for (int k = 0; k < num_receiver_times; k++)
113         {
114             int flag = 0;
115             char title[80];
116             sprintf_s(title, "%s\\\\%s_%d.txt", processedfilePath, ownname[i].c_str(), k);
117             ofstream outfile(title, ios::ate|ios::out);
118             for (vector<string>::iterator iter = p[k].begin(); iter!= p[k].end(); iter++)
119             {
120                 cout << flag++ << ":  " << *iter << endl;
121                 outfile << *iter << endl;
122             }
123             outfile.close();
124         }
125     }  
126 
127     clock_t end_time=clock(); //结束时间
128 
129     cout<< "Running time is: "
130         <<static_cast<double>(end_time - start_time)/CLOCKS_PER_SEC
131         <<"(s)"<<endl;        //输出运行时间
132     return 0;
133 }