Learn to C language sixth day

Today is Friday，Maximum temperature only twelve degrees，it is too cold for me.my breakfast is four small steamed stuffed bun， because The breakfast shop big steamed stuffed bun out of stock.

#include <stdio.h>
getchar会读取输入缓冲区剩余的字符，需要一个死循环接收输入缓冲区中多余的字符。
int main()
{
  int i=0;
  char a[20]={0};
  printf("请输入密码\n");
  scanf("%s",a);
  printf("请确认（Y/N）");
  while((i=getchar())!='\n')
  {
    ;
  }
  i=getchar();
    putchar(i);
  printf("确认");
  return 0;
}
for:
int main()
{
  int i=0;
  for(i=1;i<=10;i++)
    printf("%d ",i);
  return 0;
}

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