Job-react 基础知识回顾之组件内部state

组件内部通过state 管理状态

JSX 本质就是js ,所以直接 数组.map 渲染列表

Constructor设置初始状态,记得执行super ,(props)

State就是一个不可变的对象,使用this.state 获取

import React from "react"

class App extends React.Component{
render(){
const leader = "Kormma!!!"
return (
<div>
<h4>魔鬼队伍SKT T1 ,Coach {leader}</h4>
<Faker AP = "Faker"></Faker>
<Bang ADC = "Bang" ></Bang>
<Bengi></Bengi>
<Impact></Impact>
<Wolf></Wolf>
<EDG leader = "ClearLove"></EDG>
</div>
)
}
}

class Faker extends React.Component{

constructor(props){
super(props)
this.state = {
fansBoys:["Scout","Peanut","Rookie"]
}
}

render (){

return(
<div>
<h2>SKT队长,{this.props.Ap}</h2>
<ul>
{this.state.fansBoys.map(v=>{
return <li key={v}> {v} </li>
})}
</ul>
</div>
)
}
}

class Bang extends React.Component{
render(){
// const leader = "Bang!!!"
return <h2>AD Carry,{this.props.ADC}</h2>
}
}

class Bengi extends React.Component{
render(){
const leader = "Bengi!!!!"
return <h2>打野,{leader}</h2>
}
}

class Impact extends React.Component{
render(){
const leader = "Impact"
return <h2>上单,{leader}</h2>
}
}

class Wolf extends React.Component{
render(){
const leader = "Wolf"
return <h2>辅助,{leader}</h2>
}
}

function EDG (props){
return <h5>EDG 队长 ,{props.leader}</h5>
}

export default App