豪华版计算器，如果加上图形库就跟好了(下面省略没写)。
#include
int get_option();
void print_result(int num1,int num2,int result,int option);
int main(void)
{
int done = 0;
int option,num1,num2,result;
while(!done)
{
option = get_option();
if(option == 5)
{
done = 1;
}
else {
do {
printf("\n请输入两个数：");
scanf("%d %d",&num1,&num2);
if(option == 4 && num2 == 0)
{
printf("\n对不起，除数不能为零");
}
else {
switch(option){
case 1:
result = num1 + num2;
break;
case 2:
result = num1 - num2;
break;
case 3:
result = num1 * num2;
break;
case 4:
result = num1 / num2;
}
print_result(num1,num2,result,option);
}
}while(option == 4 && num2 == 0);
}
}
return 0;
}
int get_option()
{
int option;
do
{
printf("\n ****************");
printf("\n * 1.加法 *");
printf("\n * 2.减法 *");
printf("\n * 3.乘法 *");
printf("\n * 4.除法 *");
printf("\n * 0.退出 *");
printf("\n ****************");
printf("\n请输入您需要的功能：");
scanf("%d",&option);
if(option <1 || option > 5)
{
printf("对不起您输入的数字有误，请重新输入。\n");
}
}while(option <1 || option > 5);
return option;
}
void print_result(int num1,int num2,int result,int option){
char operator;
switch(option){
case 1:
operator = '+';
break;
case 21:
operator = '-';
break;
case 3:
operator = '*';
break;
case 4:
operator = '/';
break;
}
printf("\n** %d %c %d = %d **\n",num1,operator,num2,result);
}
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286***4460@qq.com
7年前 (2019-08-01)