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How does ThinkPhp output second- and third-level columns in a tree shape?
汇英拓达杨凯瑞***
汇英拓达杨凯瑞*** 2019-04-26 11:16:28
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I want to implement the column call of the following tree structure:

360截图16660101677647.png


##The background controller should How to write, my database is as follows:

360截图16550428537093.png

Can anyone help me solve it


汇英拓达杨凯瑞***
汇英拓达杨凯瑞***

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叶子
叶子2019-04-27 03:25:07 1 floor

If there are not many categories, you can use recursion

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