一个书上的switch语句，在vc下总是无法编译，麻烦帮我看看
#include<stdio.h>
#include<ctype.h>
int main(void)
{
    char ch;
    printf("Give me a letter of the alphabet,and i will give ");
    printf("an animal name\nbeginning with that letter.\n");
    printf("please type in a letter:type # to end my act.\n");
    while((ch=getchar())!=#)
    {
        if('\n'==ch)
            continue;
        if(islower(ch))
            switch(ch)
        {
            case'a':
                printf("argali,a wild sheep of Asia\n");
                break;
            case'b':
                printf("babirusa,a wild pig of malay\n");
                break;
            case 'c':
                printf("coati,racoonlike mammal\n");
                break;
            case'd':
                printf("desman,aquatic, molelike.critter.\n");
                break;
            case'e':
                printf("echidna,the spiny anteater\n");
                break;
            case'f':
                printf("fisher,brownish marten\n");
                break;
            default:
                printf("That's a stumper!\n");
        }
        else
            printf("I recognize only lowercase letters.\n");
        while(getchar()!'\n')
            printf("Please type another letter or a #.\n");
    }
    printf("Bye!\n");
    return 0;
}

xx.exe - 1 error(s), 0 warning(s)

xie xie