要打开文件的字符串变量

Question

我的代码应该打开100个文件（并对它们进行处理），下一个索引的路径如下："c:\Naprzeme\NAPRZ100.IN"下一个是"c:\Naphzeme\NAPRZ101.IN"等：

for (int as=100;as<159;as++){
    ostringstream ss;
    ss << as;
    string cherk = ss.str();
string supremeCounter = "c:\Naprzeme\NAPRZ"+cherk+".IN";
fstream infile(supremeCounter);
//....other code here
}

CCD_ 1返回错误

28 31 C:UserstalentDocumentsFile.cpp [Error] no matching
 function for call to     'std::basic_fstream<char>::basic_fstream(std::string&)' 
candidates are: //(here some libs)...

Answer 1

fstream infile(supremeCounter.c_str());