<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <body> <div id="d1"> 我是div <b>哈哈</b> </div> </body> <script type="text/javascript"> var d = document.getElementById("d1"); /* innerHTML会将div中的所有内容都包括在内 */ /* alert("innerHTML:"+d.innerHTML); */ /* innerText会忽略div中内容的标签 */ /* alert("innerText:"+d1.innerText); */ document.write("innerHTML:"+d.innerHTML); document.write("innerText:"+d1.innerText); </script> </html>