我正处于解决这个问题的边缘。只是看......任何人都可以告诉我应该改变什么？

#include <stdio.h>
int main ()
{
    char name[20];

    printf("Type your name please: ");
    fgets(name,20,stdin);

    switch(name[20])
    {
    case 'name1':
        printf("\nYou are good\n");
        break;
    case 'name2':
        printf("\nYou are not so good\n");
        break;
    case 'name3':
        printf("\nYou are bad\n");
        break;
    case 'name4':
        printf("\nYou are very ba\n");
        break;
    default:
        printf("\nYou entered an invalid letter\n");
        break;
    }
    return 0;
}
#include <stdio.h>
int main ()
{
    char name[