1.浅谈jQuery中 wrap() wrapAll() 与 wrapInner()的差异 http://www.jb51.net/article/57336.htm
2. jquery的each方法:http://blog.csdn.net/honey_th/article/details/7404273
http://www.jb51.net/article/24581.htm
$(selector).each(function(index,element))
遍历数组的时候:
var ss = ['aa','bb','cc','dd'];
$.each(ss,function(item){
console.log(item);
})
//打印出来 0,1,2,3