改进设置密码

#include<stdio.h>
int main()
{
  int i = 0;
  int ch = 0;
  char password[20] = {0};
  printf("请输入密码:");
  scanf("%s", password);
  while ((ch = getchar()) != '\n')
  {
    ;
  }
  printf("请确认(Y/N)：");
  i = getchar();
  if (i =='Y')
    printf("密码确定成功");
  else
    printf("密码确认失败");

  return 0;
}