2018-12-19從鍵盤上輸入10個整數(shù)，合法值為1，2或3，不是這3個數(shù)則為非法數(shù)字。試編程統(tǒng)計每個整數(shù)和非法數(shù)字的個數(shù)。程序運行結果如圖所示

Console.WriteLine("請輸入10個數(shù)字");

int[] nums = new int[10];

int[] count = new int[4];

for (int i = 0; i < nums.Length; i++)

{

Console.Write("請輸入第{0}個數(shù)字", i + 1);

nums[i] = Convert.ToInt32(Console.ReadLine());

switch (nums[i])

{

case 1:

count[0] += 1;

break;

case 2:

count[1] += 1;

break;

case 3:

count[2] += 1;

break;

default:

count[3] += 1;

break;

}

}

Console.WriteLine("數(shù)字1的個數(shù)為{0}",count[0]);

Console.WriteLine("數(shù)字2的個數(shù)為{0}", count[1]);

Console.WriteLine("數(shù)字3的個數(shù)為{0}", count[2]);

Console.WriteLine("非法數(shù)字為{0}", count[3]);

} catch

{

Console.WriteLine("你輸入的有誤，程序退出。");

}

Console.ReadKey();

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