C编程错误if语句

Question

我有这个程序，直到最后它都运行良好。当我询问用户 he/she 是否想要打折并且用户输入 y/n 时，程序只是停止并且不会转到 if 语句。有什么帮助吗？谢谢:)

int calculate(){

printf("Do you want to make a discount? y/n \n");
scanf("%c",&ask);

if (ask == 'y')
{
    printf("Enter the actual money that you want to make a discount\n");
    scanf("%f",&disc);
    discount= (total * (disc/100));
    net= (total - discount);
    printf("The total bill is: %.2f\n", net);


}
else
if(ask == 'n')
{
        printf("The total bill is: %.2f\n", total);


    }
//menu();
return 0;

}

Answer 1

改变这个

scanf("%c",&ask);

至

scanf(" %c",&ask);

明确忽略任何剩余的白色 space。

C编程错误if语句

C programming error if statement

c

if-statement