JQuery遍历数组

JQuery提供类类似于java迭代的方式遍历数组：适用于Json数组和普通数组

var json = '[{"id":"1","name":"刘备"},
             {"id":"2","name":"张飞"}]';
var c = new array("first", "second", "third");

$.each(json, function(idx, obj) {
   alert(obj.tagName);
});