Rosen

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### 重现链接 https://codesandbox.io/p/devbox/vant-4-issue-template-8fuq5o ### Vant 版本 "vant": "4.8.1", ### 描述一下你遇到的问题。 报错内容如下：TypeError: Cannot read properties of undefined (reading 'length') ### 重现步骤 修改 const columnsType = ['year', 'month']为 const columnsType = ['year'];...