以下函數用于查找給定學籍編號,查找的學生姓名的相關信息,其中姓名放在數組a中,學籍編號放在數組b中,學籍號按照升序排列 Private Function Findxj(k As Integer) As string Dim f As Boolean,i As Integer,j As Integer,m As Integer i=1:j=n f=False Do While(i<=j) And Not (f) m=Fix((i+j)/2) If k=b(m) Then f=True Else If ________ Then j=m-1 Else i=m+1 End If End If Loop If f Then Findxj=________ Else Findxj=“查無此人” End Function 橫線處的代碼分別是( )