/**
* @fileoverview 核心文件，包含按需载入管理器和基础函数的封装
* @author yuyang <yuyangvi@gmail.com>
* @version 1.0
*/
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            * 有ie,webkit,opera和gecko四种
            * 值为数字表示的版本号，如果不是该核心，值为0
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            * @param b 将其参数的属性赋给第一个对象,
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                return array;
                =====*/
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            * @description 将字符串左右两侧的空白去掉
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            * @return 加工后的字符串
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        * @function
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                * @description XX函数
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                * @description XX函数
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