C programming language is a process-oriented language DOS operating system support, and how to make when programming the password entered is not visible. Beginners are confused. This paper uses getch () function to hide the user to enter a password for authentication.%C语言是DOS操作系统支持下的一种面向过程的程序设计语言，在编程时如何使输入的密码不可见，初学者感到困惑，本文使用getch()函数隐藏用户输入的密码，实现身份验证。
展开▼
