学过vue的话，对插槽并不陌生，react的插槽和vue的有几分类似

举例1-匿名插槽

Father.jsx

import React,{Component, Suspense} from 'react'
import Children from './Children'
export default class Father extends Component{
    constructor(props){
        super(props)
        this.state={
        }
    }
    render (){
        return (
            <div>
          <Children>
                    <div onClick={()=>console.log('ppp')}>
                      <p>p1p1p1p1p1p1pp1p1p11p1pp11</p>
                    </div>
                    <div>
                      <h2>h2h2h2h2h2hh2h2</h2>
                    </div>
                  </Children>
            </div>
        )
    }
}

Children.jsx

import React,{Component} from 'react'
import Grandson from './Grandson'
import { ThemeContext,UserContext } from "./Father";//引入父组件的Consumer容器
export default class Children extends Component{
    constructor(props){
        super(props)
        this.state={

        }
    }
    render (){
        return (
            <div>
               {
                Array.isArray(this.props.children) ? this.props.children.map((item,index)=>{
                  return item
                }) : this.props.children
              }
            </div>
        )
    }
}

以上react代码就像是vue的匿名插槽，但是react中，被组件包裹的子标签(孙及以下不算)，每一个都会在组件中的this.props.children中，只有一个的话this.props.children为单个元素对象，多个的话为数组

举例2-具名插槽

Father.jsx

import React,{Component, Suspense} from 'react'
import Children from './Children'
export default class Father extends Component{
    constructor(props){
        super(props)
        this.state={
        }
    }
    render (){
        return (
            <div>
          <Children>
                    <div slot="pView">
                      <p>p1p1p1p1p1p1pp1p1p11p1pp11</p>
                    </div>
                    <div slot="hView">
                      <h2>h2h2h2h2h2hh2h2</h2>
                    </div>
                  </Children>
            </div>
        )
    }
}

Children.jsx

import React,{Component} from 'react'
import Grandson from './Grandson'
import { ThemeContext,UserContext } from "./Father";//引入父组件的Consumer容器
export default class Children extends Component{
    constructor(props){
        super(props)
        this.state={

        }
    }
    render (){
	let children = Array.isArray(this.props.children) ? this.props.children : [this.props.children];
      const slots = children.reduce((slots,item)=>{
        slots[item.props.slot] = item
        return slots
      }, {})
        return (
            <div>
               {slots['hView']}
			   {slots['pView']}
            </div>
        )
    }
}