个回答

• qq_夜星辰_0

  2016-10-18 10:10:24

  using System;
  using System.Collections.Generic;
  using System.Text;
  
  namespace Test
  {
      class Program
      {
          static void Main(string[] args)
          {
              //请完善代码
              
              for(int i = 1; i<=7 ; i++){
                 for(int j=1;j<=7;j++){
                     if(i==j||i+j==8){
                         Console.Write("O");
                     }else{
                         Console.Write(".");
                     }
                 }
                 Console.WriteLine();
              }
              
          }
      }
  }

  3