类似地，后台任务希望收到来自控制终端的输入，但是控制终端不能将您输入的任何字符定向到后台进程的stdin。
Similarly, the background task expects input from the controlling terminal, but the controlling terminal has no way of directing any characters you type to the stdin of a background process.
一种由特殊构造的终端和一支光笔组成的系统。在屏幕上将笔尖点向期望的字符位置，就能选择那个位置上的字符数据。
A system of a specially designed terminal and light pen. By pointing the pen to the desired character position, data of the character is selected by the system.
所涉及的处理流程在不同的开发平台上有共通性，具有很强的实用价值，方便开发人员对移动终端的字符处理有清晰的理解。
The method is abstracted from different platforms and it has general guidance and practical value in handset design for mobile phone developers.
所涉及的处理流程在不同的开发平台上有共通性，具有很强的实用价值，方便开发人员对移动终端的字符处理有清晰的理解。
The method is abstracted from different platforms and it has general guidance and practical value in handset design for mobile phone developers.
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