Simple Calculator Project Using C Language

Below is simple calculator project developed in C Language. Copy below code and run in Dev-C++

 #include
#include
int main ()
{
float num1=1.0, num2=1.0;
char op;
do
{
printf("type number, operator, number \n");
scanf("%f %c %f", &num1, &op, &num2);
if(op=='+')
printf("=%f", num1+num2);
else if(op=='-')
printf("=%f", num1-num2);
else if (op=='*')
printf("=%f", num1*num2);
else if (op=='/')
printf("=%f", num1/num2);
printf("\n");
}
while(getche()=='\r');
getch();
}