C++——常用基础操作总结

文章目录

• ​​写入文本txt​​
• ​​读取txt文件​​
• ​​调用命令行命令创建文件夹​​

写入文本txt

#include<iostream>
#include<fstream>
using namespace std;

void test()
{
    ofstream ofs;
    ofs.open("./test.txt",ios::out);
    ofs << "姓名：林俊杰" << "\t" << "性别：男" << "\t" << "年龄：38" << endl;

    ofs.close();
}
int main()
{
    test();
    getchar();
    return 0;
}

读取txt文件

#include<iostream>
#include<fstream>
#include<string>
using namespace std;

void test()
{
    ifstream ifs;
    ifs.open("test.txt", ios::in);
    if (!ifs.is_open())
    {
        cout << "打开文件失败" << endl;
        return;
    }
}

调用命令行命令创建文件夹

#include <iostream>
using namespace std;

int main()
{
    string folderPath = "E:\\database\\testFolder"; 

    string command;
    command = "mkdir -p " + folderPath;  
    system(command.c_str());

    return 0;
}