var Booklist = document.getElementsByClassName('book-list')[0];
var template='';
for(var i=0;i<20;i++){
var info= dataArr[i];
template += `
<li class="book-item">
<a target="_blank" href="${info.href}">
<div class="item-pic">
<img src="${info.img_src}">
</div>
<div class="item-info">
<div class="item-desc">${info.desc}</div>
</div>
</a>
</li>`;
}
Booklist.innerHTML=template;
var dataArr =[
{
"href":"https://www.baidu.com/",
"img_src":"image/1.jpg",
"desc": "测试"
}];