Optional arguments could be added after the text string to specify the comment introducer, the character used as the "box," and the width of the comment.
可选参数可以添加在文本字符串之后,用来指定评论人,用作 “框” 的字符,以及评论的宽度。
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But you might prefer that the comment introducer, the "boxing" character, and the width of the comment all be optional (with sensible defaults when omitted). Then you could call.
Whereas, if you provided extra arguments, they would specify non-default values for the comment introducer, the "boxing" character, and the comment width. So this call