效果：

js1:

const cloudHelper = require('../../../helper/cloud_helper.js');async function config1({cover,title,desc,qr,bg = ''
}) {var qr1 ="images/qr.png"var qr2 ="https://636c-cloud1-0gu29f2j63906b7e-1319556650.tcb.qcloud.la/activitycomm/setup/3b6b18d28389704ae0288f82f0664434.png"//  **2. 获取二维码图片信息**//**3. 获取头像图片信息**if (cover.startsWith('cloud'))cover = await cloudHelper.getTempFileURLOne(cover);if (qr.startsWith('cloud'))qr = await cloudHelper.getTempFileURLOne(qr);let posterConfig = {width: 480, // rpxheight: 650,backgroundColor: '#eeeeee'};if (bg) posterConfig.ba