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wheel.getSelectedIndex() 为NaN #13

@yqh708

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@yqh708

我把数据改成对象的形式,当我从单列切换到双列的时候,获取wheel.getSelectedIndex() 为NaN,返回的数据为空。但是第一次就是双列的时候就没有问题,大佬,这要怎么解决呢?

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