C++写文件夹

写文件

#include <fstream>
using namespace std;
int main() {
　　ofstream outFile;
　　outFile.open("D:\gaoyu.txt");
　　outFile << "this is a c++ file write test.";
　　outFile.close();
　　return 0;
}

ofstream ofs(path + "/result.txt", ios::out | ios_base::binary);
string line2 = "";
line2.append("	阈值    ").append("	tpr(1-frr)    ").append("	fpr(far)    ").append("	准确率
");
ofs.write(line2.data(), line2.length());
ofs.flush();
ofs.close();