摘要：
const listItems = numbers.map((numbers,index)=><li key={index}>{numbers}</li>) const listItems = numbers.map((numbers,index)=>{ return <li key={index} 阅读全文
摘要：
import React from 'react'; import PropTypes from 'prop-types'; class Home extends React.Component{ render(){ return ( <div> <h1>hello word</h1> <button onClick={(event)=>this.TestMethod(event,"哈哈哈")}> 阅读全文