JS实现另存/打印功能

代码实现

<div id="main">
　　<-- 需要保存的内容 -->
</div>

<div @click="printdiv">下载</div>

JS实现

printdiv() {
    var printpage = document.getElementById("main");
    var newstr = printpage.innerHTML;
    var oldstr = document.body.innerHTML;
    document.body.innerHTML = newstr;
    window.print();
    document.body.innerHTML = oldstr;
          return false;
    },