[填空题] 设有以下函数过程： Function fun(m As Integer)As Integer Dim k As Integer,sum As Integer sum=0 For

[填空题] 设有以下函数过程： Function fun(m As Integer)As Integer Dim k As Integer,sum As Integer sum=0 For k=m To 1 Step -2 sum=sum+k Next k fun=sum End Function若在程序中用语句s=fim(10)调用此函数，则s的值为 【6】 。