由于会在每行至少找到此双字符模式的一个匹配项，因此grep命令会输出输入文件中的每个行。
Because it finds at least one match to its two-character pattern on every line, the grep command outputs every line in the input file.
当您处于游标定位模式时，用户可以切换，或者定位游标到输入区域的任何一个字符之上。
When in cursor-positioning mode, the user can tab to, or position the cursor on, any character in the input field.
在CLP命令模式或交互输入模式下，可以将反斜线字符(\)用作行连续字符。
You can use the backslash character (\) as the line continuation character in CLP command mode or interactive input mode.
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