code1

#include <stdio.h>
#include <stdlib.h>

int main()
{
    float n1,n2,res;
    char ope;
    for(;;){
        printf("\n_________________________________________");
        printf("\nplease enter the first number:");
        scanf("%f",&n1);
        printf("\nplease enter the second number:");
        scanf("%f",&n2);

        printf("\n\t+\t-\t*\t/");
        printf("\n \t please select on e of the operand: ");
        ope=getch();

        switch (ope){
             case '+':
        printf("%f+%f=%f",n1,n2,n1+n2);
        break;
         case '-':
        printf("%f-%f=%f",n1,n2,n1-n2);
        break;
         case '*':
        printf("%f*%f=%f",n1,n2,n1*n2);
        break;
         case '/':
        printf("%f/%f=%f",n1,n2,n1/n2);
        break;

         default:
            printf("***************************");
            printf("\n\t\t\tyou selected wrong operand");
            printf("***************************");

        }
    }

    return 0;
}