1,在js入口文件中引入css样式文件
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2,引入依赖及子组件
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3,数据循环 数据绑定
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4,DOM节点显示隐藏
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5,axios接口配合发送获取数据
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6,在哪个钩子获取后端数据
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7,
v-if : DOM节点的插入和删除
v-show : DOM节点的显示隐藏
8,父组件把数据传到子组件
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9,在子组件里面获取元素节点
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怎么办?
方法一: 数据来了再加载子组件 那么 在mounted里面 就可以获取到元素节点
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方法二: watch使用监听
监听源数据 和 第一次更新数据后
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