{
            //声明整型数组，保存一组整数
            int[] num = new int[] { 3,34,42,2,11,19,30,55,20};
            //请完善代码，循环打印数组中的偶数
            for(int i=0; i<num.Length;i++)
            {
                if(num[i]%2==0)
                   {
                    Console.Writeline(num[i]+",");   
                   }
               
            }
        }