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vue的多级联动问题

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vue的多级联动问题

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如图所示，比如我选择了河北，点了石家庄，:class="item === nowPrice ? 'lan' : ''" 这样就加上了颜色，然后点击确定没问题再打开显示石家庄没问题，如果不点确定 点body关闭之后再打开应该还是全球，这应该怎么实现，求指导


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解决了，有重新定义了一个变量，选择了点击确定就赋值给变量，不点确定不赋值，点击打开的时候让选择值等于变量默认就是选中的了


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