计算器的加减乘除

#include

double calculetor (double a,double b,char myoperator)
{
 if (myoperator =='+')
 {
  return a+b;
 }
 else if (myoperator =='-')
 {
  return a-b;
 }
 else if (myoperator =='*')
 {
  return a*b;
 }
 else if (myoperator =='/')
 if(b=0)
 {
  printf ("除数不能为零!!!!\n");
  return 0;
 }
 else
 {
  return a/b;
 }
    else
 {
  printf ("亲，这个问题太难了，我也不会算。\n");
  return 0;
 }
}
int main ()
{
 double a,b;
 char myoperator;
 scanf("%lf%c%lf",&a,&myoperator,&b);
 printf("%lf\n",calculetor(a,b,myoperator));
 return 0;
}