01 按指定格式读写文件出现乱码

#include<iostream>
#include<sstream>
#include<fstream>
#include<string>
#include<Windows.h>
using namespace std;
int main(void) {
  string name;
  int age;
  ofstream out;
  out.open("指定格式读取.txt", ios::out | ios::trunc);
  while (1) {
    cout << "请输入姓名：【ctrl + z 退出】";
    cin >> name;
    if (cin.eof()) {
      break;
    }
    cout << "请输入年龄：";
    cin >> age;
    stringstream ret;
    ret << "name: " << name << "\t\t\tage:" << age << endl;
    out << ret.str();
  }
  out.close();
  system("pause");
  return 0;
}

#include<iostream>
#include<sstream>
#include<fstream>
#include<string>
#include<Windows.h>
using namespace std;
int main(void) {
  char name[64];
  int age;
  string lien;
  ifstream in;
  in.open("指定格式读取.txt");
  while (1) {
    getline(in, lien);
    if (in.eof()) {
      break;
    }
    sscanf_s(lien.c_str(), "name:%s age:%d", name, sizeof(name), &age);
    cout << "姓名：" << name << "\t\t\tage：" << age << endl;
  }
  in.close();
  system("pause");
  return 0;
}