js 打印网页部分内容

function print_table() {

    var stxt = document.all.testPrint.innerHTML; // testPrint 页面上的容器,如表格,div

    //stxt = '<link   href= "css.css"   rel= "stylesheet "   type= "text/css "> ' + stxt;

    var pwin = window.open("", "print");

    pwin.document.write(stxt);

    pwin.document.close(); //这句很重要哦 

    pwin.print();

}