react生成二维码

import React from "react"
const QRCode = require('qrcode.react');

class Gopay extends React.Component{
    constructor(props){
        super(props)
        this.state={
            url:""
        }
    }

componentDidMount(){
   
       this.setState({
             url:"www.baidu.com
            })
        }

    render(){
        return(
            <div>
                  <QRCode size={150} value={this.state.url}/>
            </div>
        )
    }
}

export default Gopay