JavaScript中如何遍历和修改dom实例详解

function walkDOM(n) { 
 do { 
  alert(n); 
  if (n.hasChildNodes()) { 
   walkDOM(n.firstChild) 
  }   
 } while (n = n.nextSibling) 
} 
 
walkDOM(document.body);//测试

var my = document.getElementById('closer');

my.innerHTML = 'final';//final

my.innerHTML = &#39;<em>my</em> final&#39;;//<em>my</em> fnal

my.firstChild;//<em> 
my.firstChild.firstChild;//my

my.firstChild.firstChild.nodeValue = 'your';//your

my.style.border = "1px solid red";

my.style.fontWeight = 'bold';

my.align = "right"; 
my.name = 'myname'; 
my.id = 'further'; 
my;//<p id="further" align="right" style="border: 1px solid red; font-weight: bold;">