W:=array(
("组合编号":29.0,"截止日":"2013-09-06","代码":"SH510610","名称":"华夏能源ETF","数量":1329000.0,"市值":1116360.0,"占净值比例(%)":0.21,"总成本":1065639.81,"成本价":0.8,"收盘":0.84,"浮动盈亏":50720.19,"浮盈率(%)":4.76,"一级分类":"权益","证券类别":"基金","板块名称":"ETF基金","行业代码":"ETF","投资分类":"交易性","上市地":"上交所","证券类别IV":"","证券类别III":"股票型","管理人":"华夏基金管理有限公司","比例(%)":98.34),
("组合编号":29.0,"截止日":"2013-09-06","代码":"SH510650","名称":"华夏金融ETF","数量":20000.0,"市值":18900.0,"占净值比例(%)":0.0,"总成本":17750.0,"成本价":0.89,"收盘":0.9399999999999999,"浮动盈亏":1150.0,"浮盈率(%)":6.48,"一级分类":"权益","证券类别":"基金","板块名称":"ETF基金","行业代码":"ETF","投资分类":"交易性","上市地":"上交所","证券类别IV":"","证券类别III":"股票型","管理人":"华夏基金管理有限公司","比例(%)":1.66));
return pf_Beta2(w,'SH000300',20170801T,20180801T,10,0);
//返回：0.015963690277912