黑馬程序員_異常實例

using System;

using System.Collections.Generic;

using System.Linq; using System.Text;

//2014.3.14

namespace _6.異常

{

class PRogram

{

static void Main(string[] args)

{

try

{

Console.WriteLine("Convert之前");

int a = Convert.ToInt32(Console.ReadLine());

Console.WriteLine("Convert之后");

}

catch (Exception ex)

{

Console.WriteLine("輸入錯誤："+ex.Message+"異常堆棧："+ex.StackTrace);

}

try

{

Console.WriteLine("請輸入你的年齡：");

int s = Convert.ToInt32(Console.ReadLine());

string desc = GetAgeDesc(s);

Console.WriteLine(desc);

}

catch (Exception ex)

{

Console.WriteLine("數據錯誤，"+ex.Message);

}

Console.ReadKey();

}

static string GetAgeDesc(int age)

{

if (age >= 0 && age <= 3)

{

return "嬰幼兒";

}

else if (age > 3 && age < 18)

{

return "青少年";

}

else if (age >=18 && age < 60)

{

return "成年人";

}

else if (age >= 60 && age < 100)

{

return "老年人";

}

else

{

throw new Exception("自己創建的ex.Message");

}

}

}

}