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;}Windows 用户 现在,请您打开之前已经安装好了的Dev C++软件,点击左上角的“文件”-“新建”-“源代码”。并在打开的编辑器里面粘贴以下代码:#include <iostream>...
#include<iostream> using namespace std; int sum(int a,int b);//函数声明 int main() { cout <<&nb...
/*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...