DreamMaker_DI的博客

先上代码 #include<iostream> using namespace std; struct Student1 { int id = 200; int s = 100; char* name = "lisi"; }; void test2() { Student1 *stu = (Student1 *)malloc(sizeof(Student1)); int *var = (int *)stu; cout << "stu->id == " &lt

#include <iostream> #include <conio.h> using namespace std; int main() { fflush(stdin); cout << "请输入密码："; int idx = 0; char compare[20], c; while((c = getch()) != 13) { // 13是回车，8是删除 if(c == 8 && idx >

C++中创建对象的方式 无参数的情况 隐式创建：A a1; 显式创建：A a2 = A(); 通过new关键字创建，返回的是指针：A *a3 = new A(); #include <iostream> using namespace std; class A { public: int id; }; int main() { A a1; a1.id = 1; A a2 = A(); a2.id = 2; A *a3 = ne

typedef struct 和 struct在C和C++的区别 在C++中，下列程序可以直接编译通过，即Student1、Student2、TYPEDEF_STU2都相当于一种类型 #include <stdio.h> struct Student1 { int id; char* name; }; typedef struct Student2 { int id; char* name; }TYPEDEF_STU2; int main() { Student