如何实现删除字符串中的特殊字符

Question

Answer 1

供参考：

#include<stdio.h>
int main()
{
    char s[1024],*p,*q;
    gets(s);
    p = q = s;
    while(*p){
          if((*p >= 'A' && *p <= 'Z')||(*p >='a' && *p <= 'z')){
             *q++ = *p++;
          }else      p++;
    }
    *q = '\0';
    puts(s);
    
    return 0;
}