实操策略一：内容结构化与实体标注
.foot{width:100%; height:8em; background-color:#cc5536;}
独家
var qrcode = new QRCode(document.getElementById("qrcodearea"), {
江苏
{
"image":"https://www.weibomn.com/images/image/20230902/52ffc0efb31b1fc5bb15857b4ef3d48d.jpg",
山西
background: #f6f7f9;