dummy print routine

例句：

1. 1.The dummy print routine is used to simulate user input for testing purposes.
   假打印程序用于模拟用户输入，以便于测试。
2. 2. The dummy print routine was designed to prevent accidental deletion of important data.
   假打印程序被设计用来防止意外删除重要数据。
3. 3. The dummy print routine was a critical component in the development of our new software system.
   假打印程序是我们新软件开发系统中的关键组成部分。