如何实现如图所示的下拉选项功能

calc

hitbuyi December 15, 2022, 8:32am #1

Screenshot from 2022-12-15 16-26-59_selectBar

Screenshot from 2022-12-15 16-26-59_selectBar1345×758 89.9 KB

如上图所示,主要步骤是什么?

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