Question

我试图使用try catch块但我面临一些问题..请帮助

这是我得到的代码和错误错误1当前上下文中不存在名称“程序”

using System;
namespace AddMinusDivideMultiply
{
    class Program
    {
        public static int i, j;

        public static void Main()
        {
            try
            {

                Console.Write("Please Enter The First Number  :");
                string temp = Console.ReadLine();
                i = Int32.Parse(temp);

                Console.Write("Please Enter The Second Number :");
                temp = Console.ReadLine();
                j = Int32.Parse(temp);

            }
            catch (Exception e)
            {
                Console.WriteLine(" An Execption was thrown: {0}", e.Message);
            }

            Terms.Minus(); 
        }
        }
    }

    class Terms
    {
        public static void Add()
        {
            int add;
            add = Program.i + Program.j;
            Console.WriteLine("The Addition Of The First and The Second Number is {0}", add);
        }

        public static void Minus()
        {
        int minus;
        minus = Program.i - Program.j;
        Console.WriteLine("The Subraction Of The First and The Second Number is {0}", minus);
        }
    }

Answer 1

请尝试AddMinusDivideMultiply.Program。不过很奇怪，你已经在正确的命名空间。

Answer 2

你目前有一个右大括号，使条款类在AddMinusDivideMultiply名称空间之外

试试这个

using System;

namespace AddMinusDivideMultiply
{
    class Program
    {
        public static int i, j;

        public static void Main()
        {
            try
            {

                Console.Write("Please Enter The First Number  :");
                string temp = Console.ReadLine();
                i = Int32.Parse(temp);

                Console.Write("Please Enter The Second Number :");
                temp = Console.ReadLine();
                j = Int32.Parse(temp);

            }
            catch (Exception e)
            {
                Console.WriteLine(" An Execption was thrown: {0}", e.Message);
            }

            Terms.Minus(); 
        }
    }


    class Terms
    {
        public static void Add()
        {
            int add;
            add = Program.i + Program.j;
            Console.WriteLine("The Addition Of The First and The Second Number is {0}", add);
        }

        public static void Minus()
        {
        int minus;
        minus = Program.i - Program.j;
        Console.WriteLine("The Subraction Of The First and The Second Number is {0}", minus);
        }
    }
}

Answer 3

你的大括号不平衡，有两个大括号关闭你想要的主方法。

帮助解决一个简单的尝试捕获块错误

3 个答案: