代码测试

//C++
#include<iostream>
using namespace std;
int main()
{
  cout<<"Hello World!"<<endl;
  return 0;
}

//Java
public class Helloworld{
  public Helloworld(){
  System.out.println("Helloworld Constructor");
}
  public static void main(String[] args){
    System.out.println("Hello World!");
  }
}

#python
def func():
  print("Hello World!");
func;