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 main() { if(1+1==2) { cout << "1+1=2"; }...
#include<iostream> using namespace std; int main() { cout << "The size of int is&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...