2015.3.3 (UP)

Exercises:

(a) between 1-100, enter two numbers, calculate the and between two numbers?

//console.writeline ("Please enter an integer");            //int a = Convert.ToInt32 (Console.ReadLine ());            //console.writeline ("Please enter an integer");            //int B = Convert.ToInt32 (Console.ReadLine ());            //int x = 0;            //for (int i = A; I <=b; i++)    & nbsp;       //{            //    x = x +i;            //}             //console.writeline (x);            //console.readline ();

(b)   1-100, enter two numbers, and then enter a symbol (+,-,*,/)?

 //           Console.WriteLine ("Please enter a number");  //           double c = convert.todouble (Console.ReadLine ( ));  //           Console.WriteLine ("Please enter a number");  //           Double D = convert.todouble (Console.ReadLine ( ));  //           Console.WriteLine ("Please enter an operation symbol (+,-,*,/)");  //           string y=convert.tostring (Console.ReadLine ( ));  //           Double x = 0;              //                switch (y)  //    {                case "+":  //                        x=c+d;  //        break;  //                    Case "-":  //                        x=c-d;  //                        break;  //                    Case "*":  //                        x=c*d;  //                       break;  //                    Case "/":  //                        x=c/d;  //                        break;  //       Default:  //                        Console.WriteLine ("You have entered an error ");  //break;  //   } Console.WriteLine (x);  //               Console.ReadLine () ;

2015.3.3 (ON)