[讨论]for each 循环 Post By:2019/6/21 15:29:00 [只看该作者]
drs = DataTables("表A").Select("第1级 <> '""'") For Each dr As DataRow In drs Dim jiezhi As List(Of DataRow) = DataTables("表A").Select("第1级 <> '""'" & "and" & "[序号] >'0'") For Each jiezhia As DataRow In jiezhi If jiezhia("第1级")<> "" Then MessageBox.show(jiezhia) Exit For Else MessageBox.show(“123”) End If Next Next
在for each 中又用了一个for each (最里面的循环条件满足就exit for),外面的进行下一次循环,但是此时里面一层的for each不执行了