第七课

输入班级人数,然后依次输入学员成绩，计算班级学员的平均成绩和总成绩
Console.WriteLine("请输入班级人数");
int count = Convert.ToInt32(Console.ReadLine());
int i = 0;
int sum = 0;
while (i < count)
Console.WriteLine("请输入第{0}个学员的成绩", i + 1);
try
{
int score = Convert.ToInt32(Console.ReadLine());
sum += score;
i++;
}
catch
{
Console.WriteLine("输入有误，请重新输入");
Console.WriteLine("共{0}个人的班总成绩为{1}平均成绩为{2}", count, sum, sum % count);
Console.ReadKey();
}