解析配置文件的一段练习代码

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#include <iostream> #include <fstream> #include <cassert> #include <string> #include <iostream> #include <vector> #include <map>   using namespace std;   const string fileName = "config.txt";   map<string, string> tar_path;     int main() {     ifstream fin;     fin.open(fileName);      if (false == fin.is_open()) {         std::cerr << "open file failed!!" << std::endl;         return -1;     }     string s;       while (getline(fin, s))     {         size_t pos= s.find_first_of("=");         if (pos == std::string::npos || pos+1>=s.size())             continue;         string targetName = s.substr(0,pos-1);         string path = s.substr(pos+1);         std::cout << targetName << " = " << path << std::endl;     }     fin.close();       //================================================           return 0; }

　　解析文本为        XXXX=E:\test\1234