#下载

npm i wuhongyi -S

#使用

const http = require('http')
const why= require('wuhongyi')

http.createServer((req, res) => {

    let captcha = why.create()
    // console.log(captcha); // {data, text}
 
    // res.setHeader('content-type', 'text/html;charset=utf-8')
    res.setHeader("content-type", "image/svg+xml");
    res.end(captcha.data)
}).listen(3000, () => { 
    console.log('启动成功， 访问测试 http://localhost:3000');
})