请问这个怎么写出来

[飞扬残月]

set rs = server.createobject("adodb.recordset")

sql = "select sum(h5-h7-h9)/100 as 2112,sum(m5-m7-m9)/100 as 2651,sum(f5-f7-f9)/100 as

2652,sum(l5-l7-l9)/100 as 2653,sum(nc5-nc7-nc9)/100 as 2656,sum(p5-p7-p9)/100 as

2655,sum(n5-n7-n9)/100 as 2551,sum(z5-z7-z9)/100 as 2552 from bmxs "
rs.open sql,conn,1,1
total=rs(2112)+rs(2651)+rs(2652)+rs(2653)+rs(2655)+rs(2656)+rs(2551)+rs(2552)
请问这样写total 对吗，不然怎么写呢！在线等哈！