通过读取excel表为c文件中的变量赋值

我需要通过读取excel表为C文件中的变量赋值。我已经写了一段代码，但自从我使用for循环以来，只有最后一个变量被赋值。它覆盖了分配给以前变量的值，因为我在分配值后创建了一个不同的输出文件。

#include <iostream>
#include <fstream>
#include <string>
using namespace std;
int main()
{
string s1, s2, s3,s4;
string filename, text, line;
string cfilename,funcname, signal, value;
  int i , k , m;
cout << "Enter excel filename" << endl;
cin >> filename;
cout << "How many lines of text are in the file?" << endl;
cin >> m;
fstream file(filename);
if (!file) {
           cerr << "No such file exists." << endl;
           exit(1);
            }
if (file.is_open()) {
         while (file.eof()==0){
           for (k = 0; k < m; k++)  {                               //Loops for as many lines as there are in the file
                for (i = 0; i < 4; i++) {                           //Loops for each comma-separated word in the line

                   if (i == 0){
                        getline(file, text, ',');           
                        cfilename=text;
                   cout << cfilename << 't';}
                   else if (i == 1){
                         getline(file, text, ',');
                         funcname=text;
                   cout << funcname << 't';}
                   else if (i == 2){
                         getline(file, text, ',');
                         signal=text;
                   cout << signal << 't';}
                   else if (i == 3){
                        getline(file, text, 'n');
                        value=text;
                   cout << value << 'n';}
                                         }
                                    string s1=signal,s2=value;          
                                    s2 = s2 + ";  //";
                                    int offset, inset;
                                    string line;
                                    string search=s1;
                                    fstream cfile(cfilename);
                                    fstream fileOutput;
                                    fileOutput.open("output.c");
                                    if(cfile.is_open() && fileOutput.is_open()) {

                                                                        while(!cfile.eof()) {
                                                                            getline(cfile, line);
                                                                            if ((offset = line.find(funcname)) != string::npos){
                                                                                        cout << "found: " << funcname << endl;                      
                                                                                        string line1;
                                                                                        fileOutput << line << 'n';
                                                                                        skip:
                                                                                        while(getline(cfile,line1)){

                                                                                            if((inset=line1.find(search, 0)) !=string::npos){
                                                                                                cout<<"found: " << search << endl;
                                                                                                string s3 = s1+ "=" +s2;
                                                                                                //cout<<s3;
                                                                                                line1.replace( inset, inset+s1.size(), s3 );}

                                                                                            fileOutput << line1 << 'n';
                                                                                            goto skip;
                                                                                            }   
                                                                                        getchar();  }
                                                                            fileOutput << line << 'n'; }
                                                                    cfile.close();
                                                                    fileOutput.close();
                                                                     }
                                        }
                                  }
                            }
                    file.close();
                    getchar();
                    return 0;
}

我试图先搜索一个函数，然后搜索该函数中的变量。

这里需要帮助。