โปรแกรมคิดเลขแบบง่ายที่ยังไม่ได้ดัก Error
#include <stdio.h>
#include <conio.h>
void main(){
float num1,num2,total;
int key;
printf("Enter Values 1 : ");
scanf("%f",&num1);
printf("key 1= +, key 2= -, key 3=*, key4=/ :: ");
scanf("%d",&key);
printf("Enter Values 2 : ");
scanf("%f",&num2);
if(key==1){
total=num1+num2;
printf("\nTotal: %.2f + %.2f = %.2f",num1,num2,total);
}
else if (key==2){
total=num1-num2;
printf("\nTotal: %.2f - %.2f = %.2f",num1,num2,total);
}
else if (key==3){
total=num1*num2;
printf("\nTotal: %.2f * %.2f = %.2f",num1,num2,total);
}
else if (key==4){
total=num1/num2;
printf("\nTotal: %.2f / %.2f = %.2f",num1,num2,total);
}
}
ผลการรัน
Enter Values 1 : 45
key 1= +, key 2= -, key 3=*, key4=/ :: 1
Enter Values 2 : 8
Total: 45.00 + 8.00 = 53.00