qq_40214464的博客

# 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"...

Write函数需要写入地址，所以需要传入&p，但是代码定义为类，需将其地址转换为字符型，强制类型转换# include<iostream># include<fstream>using namespace std;class Person{public: char m_Name[64];//姓名 int m_Age; //年龄};void test01(){ //包含头文件 //创建流对象 ofstream ofs; //...

# include<iostream># include<fstream># include<string>using namespace std;//文本文件的读文件int test01(){ //1、包含头文件 //2、创建流对象 ifstream ifs; //3、打开文件判断是否打开成功 ifs.open("test.txt",ios::in); if (!ifs.is_open()) //文件打开失败：路径失败 { cou...

# include<iostream># include<string># include<fstream>using namespace std;//文本文件的写文件void test01(){ //1、包含头文件fstream //创建流对象 ofstream ofs; //out file //3、指定打开方式 ofs.open("test.txt", ios::out); //4写内容 ofs...