warning: this program uses gets(), which is unsafe.
来源：互联网 发布：2017好听的网络红歌 编辑：程序博客网 时间：2024/05/03 14:58
不安全啊不安全～
1、没有边界检查 深入了解计算机的人可以利用gets不检查边界 用输入实现攻击
所以不安全
gets写的程序 都被叫做 玩具程序了
2、使用gets()容易溢出。。。也就是输入的字符串大于数组的容量时字符串就溢出到其他存储空间了。
3、gets()函数接收的输入大小不受限制，于是有人利用这个，通过输入覆盖操作系统所占的内存，制造了蠕虫病毒。如果是重要的程序，最好谨慎使用这个函数。
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