点击按钮打印,网上有很多代码,非常不好. 将要打印的内容放在不同层里.

<input type="button" class="button_css" value="打印" onClick="javascript:doPrint();">

<script language="javascript">

function doPrint()
{
 var mContent1 = document.all.Content1.innerHTML;
 var mContent2 = document.all.Content2.innerHTML;
 var mContent3 = document.all.Content3.innerHTML;
 var mContent4 = document.all.Content4.innerHTML;

    document.body.innerHTML = mContent1+mContent4+mContent3;

    window.print();
}

</script>