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这是debug时候看到的好像是有东西吧
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然后走下去就报错了
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下面是代码里的
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这是什么问题呢


补充一下, 刚才的新发现
把this给另一个变量赋值, 她竟然是undefined
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用鼠标把this圈起来看的话它又是有内容的
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1 Answer

你需要这样写:

methods:{
    menuClick({item,key,keyPath}){
        ...
    }
}

看文档:
https://cn.vuejs.org/v2/api/#methods
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与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
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