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通过take_while获取集合中符合条件的数组后,取其中某个元素的属性报错,用了引用变量也不行 #606

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@moqiaaa

4d3f6db5249e59790b6ce85d2a29e82
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fed06bb0e35b4da75d6013a0f12583c
使用take_while 取出所有的主手术,然后取了第一个元素可以打印,再取第一个元素的属性后报错,换了几种方案都不行

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