汗
Dim sfzhm As String = sheet(n,0).Text Dim dr As DataRow = DataTables("理论机考表").Find("身份证号码 = '" & sfzhm & "'")
改成
Dim sfzhm As String = sheet(n,4).Text Dim dr As DataRow = DataTables("理论机考表").Find("身份证号码 = '" & sfzhm & "'")