#include <string.h>
#define n 80
char *strblk (char *string);
int main (void)
{
    char str1[n];
    *strblk(str1);
    puts (str1);
    return 0;
}
char *strblk (char *string)
{
    gets (string);
    int i = 0;
    while(*(string + i) != '\0')
    {
        if(*(string + i) != ' ')
        *(string + i)= '\0';
        
        else if(*(string + i) != '\n')
        *(string + i)= '\0';
        
        else if(*(string + i) != '\t')
        *(string + i)= '\0';
        
        i++;
    }
    return string;
}请问逻辑上有什么问题吗？