效果
图片发自简书App
代码
Console.WriteLine("请输入10个数字");
int[] nums = new int[10];
int [] count={0,0,0,0};
try
{
for (int i = 0; i < nums.Length; i++)
{
Console.Write("请输入第{0}个数字：", i + 1);
nums[i] = Convert.ToInt32(Console.ReadLine());
switch (nums[i])
{
case 1:
count[0]++;
break;
case 2:
count[1]++;
break;
case 3:
count[2]++;
break;
default:
count[3]++;
break;
}
}
Console.WriteLine("数字1的个数：{0}", count[0]);
Console.WriteLine("数字2的个数：{0}", count[1]);
Console.WriteLine("数字3的个数：{0}", count[2]);
Console.WriteLine("非法数字的个数：{0}", count[3]);
}
catch
{
Console.WriteLine("输入格式错误");
}
Console.ReadKey();
