<!DOCTYPE html> <html> <head> <meta charset=" utf-8"> <meta name="author" content="http://www.jb51.net/" /> <title>指定被打印的内容</title> <script language="javascript"> function printdiv(printpage) { var newstr = printpage.innerHTML; var oldstr = document.body.innerHTML; document.body.innerHTML =newstr; window.print(); document.body.innerHTML=oldstr; return false; } window.onload=function() { var bt=document.getElementById("bt"); var div_print=document.getElementById("div_print"); bt.onclick=function() { printdiv(div_print); } } </script> </head> <body> <div id="div_print"> <h1 style="Color:Red">这是要被打印的内容</h1> </div> <div style="Color:Red">欢迎您</div> <input name="print" type="button" id="bt" value="点击打印" /> </body> </html>