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;}#include <iostream> using namespace std; int addnum(int a,int b) { return a+b; } int ...
#include<iostream> using namespace std; int sum(int a,int b);//函数声明 int main() { cout <<&nb...
#include<iostream> using namespace std; int main() { int x=0; for(x=0;x<10;x++) { if(x==3) break;...
#include<iostream> using namespace std; struct books{ char name[10]; int num; float price; }book; int&nb...