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jQuery表格怎么根据th找出对应的td

in Technique[技术] by (71.8m points)

好久没用jq了，维护一个老项目怎么根据th找出对应的td比如'年龄'找出三个 20，21，22三个值插入数组，愚弟请教一下
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by (71.8m points)

取出所有th，然后找到idx。然后用nth选择出所有对应的th。然后遍历取innerText构建新的数组

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