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  • 运算符穷举

    namespace 运算符穷举
    {
        class Program
        {
            static void Main(string[] args)
            {   //123()45()68=100; 在括号里面添加+ -使等式成立 
                int a; int b; 
                for (int i = 0; i < 2; i++)    //有0 和1 两种可能, 0代表加法,1代表减法
                {
                    for (int j = 0; j < 2; j++)
                    {
                        if (i == 0)
                        {
                             a = 1;
                        }
                        else
                        {
                             a = -1;
                        }
                        if (j == 0)
                        {
                             b = 1;
                        }
                        else
                        {
                            b = -1;
                        }
                        if(123+a*45+b*68==100)  //定义的a b 是为了输出加法的运算符  当a=1为加法,a=-1为减法,b也一样
                        {
                        if(a==1)
                        {
                            Console.Write("第一格为加法,");
                        }
                        else
                        {
                            Console.Write("第一格为减法,");
                        }
                        if (b== 1)
                        {
                            Console.WriteLine("第二格为加法");
                        }
                        else
                        {
                            Console.WriteLine("第二格为减法");
                        }
                        }
                    }
                }
                Console.ReadLine();
            }
        }
    }

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  • 原文地址:https://www.cnblogs.com/lk-kk/p/4430511.html
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