剔除缓存区换行符

#include<string.h>
#include<string.h>
int Read_array(char *str,char check_ch);
 int main(void)
 {
    char *ptr="what are you doing ?";
    char ch;
    printf("请输入字符\n");
    while((ch=getchar())!=‘#‘)
    {
        if(Read_array(ptr,ch ))
          printf("%c is in charater string %s\n ",ch,ptr);
        else
          printf(" %c is not in charater string %s \n ",ch,ptr);
          printf("请输入字符\n");
      while((ch=getchar())!=‘\n‘)
        continue;
    }

    return 0;
 }
  int Read_array(char *str ,char check_ch)
  {
        int i ;
        for(i=0;i<strlen(str);i++)
          if(*(str+i)==check_ch)
             return 1;
        return 0;
  }

`