The way color works in the terminal is that you echo a sequence like \x1b[38:5:161m to tell the terminal “use color 161 (red) for the foreground.” Then all characters have a foreground color of 161 until you “reset” by sending the sequence \x1b[0m.
items in it. append can just place the item in the existing backing
。Line官方版本下载对此有专业解读
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