客户端从用户那里收集鼠标和键盘输入，并传送回服务器。
The client collects mouse and keyboard input from the user and transmits them back to the server.
你可以使用鼠标和键盘输入数据，然后在屏幕上看到由自己编写的程序显示出结果。
You can input data using a mouse and keyboard, and then view the results produced by your program on the screen.
由于死循环、死锁或其他的问题，工具和应用程序有时会挂起（不会响应任何鼠标和键盘输入）。
Tools and applications sometimes hang (do not respond to any mouse or keyboard input) because of an infinite loop, deadlock, or other problem.
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