C++入门 输出Hello World
#include <iostream>using namespace std;int main(){
cout << "Hello, world!" << endl; return 0;}它等效于
#include <iostream>using namespace std;int main(){
cout << "Hello, world! \n"; return 0;}#include <iostream>using namespace std;int main(){
cout << "Hello, world!" << endl; return 0;}它等效于
#include <iostream>using namespace std;int main(){
cout << "Hello, world! \n"; return 0;}c++的目标之一是让使用类对象就像使用标准类型一样, 也就是说,常规的初始化语法不适用于类型Stock: int year=2001; struct thing { char *pn; int m; }; thing amabob={"w...
C++中的运算符,直接看例子:int a=7,b=2,c=0; c=a+b; c=a-b; c=a*b; c=a/b; c=a%b;请大家猜猜其中c的值分别是什么?int a=7,b=2,c=0; c=a+b;//9 c=a-b;//5 c=a*b;//15 c...
/*C风格字符串的声明和使用 #include<cstdio.h> int main() { char x[]={'H','e','l','l','o','&...
#include<iostream> using namespace std; struct books{ char name[10]; int num; float price; }book; int&nb...
#include<iostream> using namespace std; void addarr(int *k,int len); //文中形如sizeof(x)/sizeof(x[0]) 是用数组占用空...