这一节的答案提交不了啊,强迫症受不了!
var x=document.getElementsByTagName("li");
for(i=0;i<x.length;i++){
var name=x[i].nodeName;
document.write(name+";");
var value=x[i].nodeValue;
document.write(value+";");
var type=x[i].nodeType;
document.write(type+";");
}