#代碼
try
?{
Console.WriteLine("輸入數(shù)字");
?int yi = 0;
int er = 0;
int san = 0;
?int cuowu = 0;
?int[] num = new int[10];
?for (int i = 0; i < num.Length; i++)
{
?Console.Write("第{0}個數(shù)字:", i + 1);
string str_a = Console.ReadLine();
?int a = Convert.ToInt32(str_a);
num[i] = a;
?if (num[i] == 1)
?{
?yi += 1;
?}
else if (num[i] == 2)
{
er += 1;
}
?else if (num[i] == 3)
?{
san += 1;
?}
?else
{
cuowu += 1;
}
?}
Console.WriteLine("數(shù)字1有：{0}", yi);
Console.WriteLine("數(shù)字2有：{0}", er);
Console.WriteLine("數(shù)字3有：{0}", san);
?Console.WriteLine("錯誤數(shù)字有：{0}", cuowu);
}
catch
?{
Console.WriteLine("輸入錯誤");
?}
Console.ReadKey();
