bae获取object之后要取body。。

[Yangff]

文件：
/include/storages/Bae.php

    //这里是效率瓶颈啊！！
    public function read($filename){
        return $this->instance->get_object($this->domain,$this->get_file($filename));
    }

应该为：

    //这里是效率瓶颈啊！！
    public function read($filename){
        return $this->instance->get_object($this->domain,$this->get_file($filename))->body;
    }