//定义2个数组（略）；
int sum = 0,avg;
for (int i=0; i < num.Length; i++)
{
sum += num[i];
}
avg = sum / num.Length;
Console.Write("平均分是{0}，",avg);
Console.WriteLine("高于平均分的有：");
for (int i = 0; i < num.Length; i++)
{
if (num[i] > avg)
Console.Write(names[i]);
}
//请完善代码
for(int a = 1; a <= 7; a ++){
for(int b = 1; b<= 7; b ++){
char c = b == a || b == 8 - a ? 'O':'.';
Console.Write(c);
}
Console.WriteLine();
}
