文件自动拆分

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。

     

#include <iostream>
#include <string>
#include <sstream>
#include <fstream>
#include <vector>
#include <direct.h> //创建文件夹头文件
#include<time.h>    //获取时间头文件
using namespace std;


void getFiles( string path, vector<string>& files, vector<string> &ownname)  
{  
    /*files存储文件的路径及名称(eg.   C:UsersWUQPDesktop	est_devideddata1.txt)
     ownname只存储文件的名称(eg.     data1.txt)*/
    
    //文件句柄  
    long   hFile   =   0;  
    //文件信息  
    struct _finddata_t fileinfo;  
    string p;  
    if((hFile = _findfirst(p.assign(path).append("\*").c_str(),&fileinfo)) !=  -1)  
    {  
        do  
        {  
            //如果是目录,迭代之  
            //如果不是,加入列表  
            if((fileinfo.attrib &  _A_SUBDIR))  
            {  /*
                if(strcmp(fileinfo.name,".") != 0  &&  strcmp(fileinfo.name,"..") != 0)  
                    getFiles( p.assign(path).append("\").append(fileinfo.name), files, ownname ); */ 
            }  
            else  
            {  
                files.push_back(p.assign(path).append("\").append(fileinfo.name) );  
                ownname.push_back(fileinfo.name);
            }  
        }while(_findnext(hFile, &fileinfo)  == 0);  
        _findclose(hFile);  
    }  
}  

int main()
{

    clock_t start_time=clock(); //开始时间

    int detector_seq;
    int sequence;
    int arrive_time;
    
    char * filePath = "C:\Users\WUQP\Desktop\test_devided";  
    char * addfilePath = "\processed_data";
    char processedfilePath[100];
    strcpy_s(processedfilePath, filePath);
    strcat_s(processedfilePath, addfilePath);
    cout << processedfilePath << endl;
    _mkdir(processedfilePath);

    vector<string> files;  
    vector<string> ownname;

    //获取该路径下的所有文件  
    getFiles(filePath, files, ownname);  
    int size = files.size();  
    for (int i = 0;i < size;i++)  
    {  
        cout<<endl; 
        int num_receiver_times = 0;
        string in_str;

        //检查每个文件中的事件数目
        ifstream in_File(files[i].c_str());
        if (in_File.is_open())
        {
            cout<<files[i].c_str() <<"   is open!"<< endl;
            while (in_File >> detector_seq >> sequence >> arrive_time)
            {
                if(detector_seq == 0) 
                {
                    ++num_receiver_times;
                }
                else break;
            }
        }
        in_File.close();

        //根据事件数目动态分开各事件的数据
        cout << "the sources of this file is " << num_receiver_times << endl;
        vector<string>* p = new vector<string>[num_receiver_times];
        ifstream in_File_(files[i].c_str());
        if (in_File_.is_open())
        {
            while (getline(in_File_, in_str))
            {
                for (int j=0; j<num_receiver_times; j++)
                {
                    p[j].push_back(in_str);
                    if ( (j+1) % num_receiver_times != 0 )
                    {
                        getline(in_File_, in_str);
                    }
                }
            }
        }
        in_File_.close();

        //分别将不同的数据写入不同的文件
        for (int k = 0; k < num_receiver_times; k++)
        {
            int flag = 0;
            char title[80];
            sprintf_s(title, "%s\%s_%d.txt", processedfilePath, ownname[i].c_str(), k);
            ofstream outfile(title, ios::ate|ios::out);
            for (vector<string>::iterator iter = p[k].begin(); iter!= p[k].end(); iter++)
            {
                cout << flag++ << ":  " << *iter << endl;
                outfile << *iter << endl;
            }
            outfile.close();
        }
    }  

    clock_t end_time=clock(); //结束时间

    cout<< "Running time is: "
        <<static_cast<double>(end_time - start_time)/CLOCKS_PER_SEC
        <<"(s)"<<endl;        //输出运行时间
    return 0;
}