Formatting control character such as the bi - directional control characters 格式控制字符,例如双向控制字符。
Input format control 输入格式控制
To prepare data for a later operation . editing may include the rearrangement or the addition of data , the deletion of unwanted data , format control , code conversion , and the application of standard processes such as zero suppression 为后继操作准备数据,编辑可以包括重新组织数据或增加数据、删除不需要的数据、格式控制、代码转换以及使用诸如消零那样的规格化处理。