C++文件操作-二进制读文件

Posted 2021-10-25 行码阁119

 

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

class Person
{
public:
	char m_Name[64];
	int m_Age;
};

void test01()
{
	//1、包含头文件

	//2、创建流对象
	ifstream ifs;

	//3、打开文件，判断是否判断成功
	ifs.open("person.txt", ios::in | ios::binary);
	if (!ifs.is_open()) 
	{
		cout << "文件打开失败" << endl;
		return;
	}

	//4、读文件
	Person p;
	ifs.read((char *)& p, sizeof(Person));
	cout << "姓名：" << p.m_Name << "年龄：" << p.m_Age << endl;

	//关闭文件
	ifs.close();
}

int main()
{
	test01();
	system("pause");
	return 0;
}