C語言刪除字符串中某個字母

void del(char *s,char ch)
{
    int j= 0;
    for (int i = 0; s[i] != '\0'; i++) {
        if (s[i]!=ch){ //判斷是否為刪除字符
            s[j++] = s[i];
        }
    }
    s[j] = '\0';
}
int main(){
   char s[80]="Student",ch;
    scanf("%c",&ch);
    del(s,ch);
    printf("%s",s);
  return 0;
}