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关于 Vue 父子组件传值 #14
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子组件获取父组件的值——Props属性
1.在子组件标签上定义值名
2.在子组件的 Vue 实例上定义
props
3.通过定义的值名使用父组件的数据。(PS:
props
属性是单项绑定的,即父组件内改变值子组件中的也会改变,反过来则不会)子组件使用父组件的函数——emint属性
1.在子组件标签上定义函数名
2.在组件函数中通过emit调用父组件函数
父组件使用子组件的函数——ref属性
1.在子组件标签上定义
ref
属性2.在组建函数中通过
this.refs.child.函数名
调用父组件获取子组件的值—— ref + emit 属性
1.在子组件标签上定义
ref
并绑定 函数名2.在父组件定义一个函数用以调用子组件的传参函数
3.在子组件定义一个函数并将函数写进函数的形参中
4.在父组件在定义一个使用子组件数据的函数
demo页面
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