实操策略二：从“关键词密度”到“问题覆盖密度”

$("#qrcode").hide();
.news div{font-size:22px; height:auto; font-weight:bold; font-family:Microsoft YaHei; margin-bottom:2%; margin-left:3%; margin-right:3%; width:94%; padding-top:5%; color:#333; line-height:30px;}
var qrcode = new QRCode(document.getElementById("qrcodearea"), {

error code: 1000