c语言新手，请问我这个程序有问题吗？

Question

#include
int main(void)
{
char ch;
printf("Please enter a character.\n");
scanf("%c",&ch);
printf("The code for %c is %d.\n",ch,ch);
return 0;
}

为什么我输入字符时，按回车，屏幕并没有出现打印的字符串，光标移到下一行的开头?

Answer 1

    char ch;
    printf("Please enter a character.\n");
    ch = getchar();
    printf("The code for %c is %d.\n", ch, ch);
    return 0;