//定义类
    function HashMap() {
        var myArray = new Array();
        this.put = function(key, value) {
            //js数组的下标可以是字符
            myArray[key] = value;
        }
        this.get = function(key) {
            var value = myArray[key];
            return value;
        }
    }
//把传过来的参数放到map里面
    function getParamMap(){
        //获取地址栏的参数？id=28&callback=baidu
        var search = location.search;
        console.log(search);
        var map = new HashMap();
        if (search.indexOf("?") >= 0) {
            //去掉?
            search = search.substr(1);
            //console.log(search);
            //id=28&callback=baidu
            var nameValues = search.split("&");
            //[0] id=28
            //[2] callback=baidu
            for (var i = 0; i < nameValues.length; i++) {
                var array = nameValues[i].split("=");
                map.put(array[0], array[1]);
            }

        }
        
        return map;

    }