checkbox列，状态无记录

[xuxiujuan]

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Expected Behavior

Current Behavior

当表格有一列el-table-column的type=“selection”时，在第一页选中某个checkbox，切换到第二页，再切换到第一页，第一页的选中状态就没了

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[njleonzhang]

这是预期的行为，翻页之后，表格实际重新渲染了，表格本身不会没有做记录。

你可以通过 selection-change 事件自己记录选择过的 row，然后在翻页的时候利用 toggleRowSelection 方法去实现勾选。

如果这个需求，想要的人多的话，我也考虑，后期在这个库里实现。

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