JS实现html打印功能，打印后返回原页面
发布时间：2020-04-23作者：小灵龙点击：197
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>打印功能</title>
<style>
h1{
text-align: center;
}
#main {
width: 800px;
height: 200px;
margin: 0 auto;
border: 1px solid #ccc;
}
p {
text-align: center;
}
span {
display: inline-block;
width: 100px;
height: 40px;
background: #3385FF;
text-align: center;
line-height: 40px;
color: #fff;
float: right;
margin-top: 20px;
margin-right: 320px;
cursor: pointer; }
</style>
</head>
<body>
<!--startprint-->
<div id="main">
<h1>xx报告</h1>
<p>打印标题</p>
<p>打印内容</p>
<p>正文部分正文部分正文部分正文部分正文部分正文部分正文部分</p>
</div>
<!--endprint-->
<span id="printBtn" onclick="preview()">打印</span>
<script>
//打印
function preview()
{
bdhtml=window.document.body.innerHTML;
sprnstr="<!--startprint-->";
eprnstr="<!--endprint-->";
prnhtml=bdhtml.substr(bdhtml.indexOf(sprnstr)+17);
prnhtml=prnhtml.substring(0,prnhtml.indexOf(eprnstr));
window.document.body.innerHTML=prnhtml;
window.print();
// 返回原界面
window.document.body.innerHTML = bdhtml
window.location.reload()
}
</script>
</body>
</html>