打印網(wǎng)頁特定區(qū)域
(function doPrint(){
//生成頭部
var head_str = "<html><head><title></title></head><body>";
//生成尾部
var foot_str = "</body></html>";
//原本頁面的代碼
var older = document.body.innerHTML;
//指定打印區(qū)域的html
//var print = document.getElementById('main').innerHTML;
var print = document.getElementsByClassName('main')[0].innerHTML;
//構(gòu)建新網(wǎng)頁
document.body.innerHTML = head_str + print + foot_str;
//調(diào)用打印
window.print();
//打完后將網(wǎng)頁還原
document.body.innerHTML = older;
})();
