| 以文本方式查看主题 - Foxtable(狐表) (http://www.foxtable.com/bbs/index.asp) -- 专家坐堂 (http://www.foxtable.com/bbs/list.asp?boardid=2) ---- 循环代码求助 (http://www.foxtable.com/bbs/dispbbs.asp?boardid=2&id=177253) |
| -- 作者：rongping -- 发布时间：2022/5/14 11:34:00 -- 循环代码求助 Dim Products As List(Of String) Products = DataTables("客户").GetValues("客户名称") 从Products集合中获得的值是："张三","李四","王五","赵六","大卫","小伟","秘鲁","里奇","可达","披露","问止", 我想通过一个数值变量使它重新排列，比如这个数值是5，重新排列的结果是： "里奇","可达","披露","问止","张三","李四","王五","赵六","大卫","小伟","秘鲁" 另外一个结果是： "大卫","赵六","王五","李四","张三","问止","披露","可达","里奇","秘鲁","小伟" 求助这个循环要怎么写？ |
| -- 作者：有点蓝 -- 发布时间：2022/5/14 12:13:00 -- Dim sr() As String = {"张三", "李四", "王五", "赵六", "大卫", "小伟", "秘鲁", "里奇", "可达", "披露", "问止"} Dim a As Integer = 5 Dim lst As New List(Of String) For i As Integer = a To sr.Length - 1 lst.add(sr(i)) Next For i As Integer = 0 To a - 1 lst.add(sr(i)) Next For Each s As String In lst Output.Show(s) Next Dim lst2 As New List(Of String) For i As Integer = a To 0 Step - 1 lst2.add(sr(i)) Next For i As Integer = sr.Length - 1 To a + 1 Step - 1 lst2.add(sr(i)) Next For Each s As String In lst2 Output.Show(s) Next
|
| -- 作者：rongping -- 发布时间：2022/5/14 13:02:00 -- Dim sr() As String = {"张三", "李四", "王五", "赵六", "大卫", "小伟", "秘鲁", "里奇", "可达", "披露", "问止"} 这一句用集合行不行？因为这个都是从数据表中提出来的集合。
|
| -- 作者：rongping -- 发布时间：2022/5/14 13:03:00 -- 以下是引用有点蓝在2022/5/14 12:13:00的发言：
Dim sr() As String = {"张三", "李四", "王五", "赵六", "大卫", "小伟", "秘鲁", "里奇", "可达", "披露", "问止"} Dim a As Integer = 5 Dim lst As New List(Of String) For i As Integer = a To sr.Length - 1 lst.add(sr(i)) Next For i As Integer = 0 To a - 1 lst.add(sr(i)) Next For Each s As String In lst Output.Show(s) Next Dim lst2 As New List(Of String) For i As Integer = a To 0 Step - 1 lst2.add(sr(i)) Next For i As Integer = sr.Length - 1 To a + 1 Step - 1 lst2.add(sr(i)) Next For Each s As String In lst2 Output.Show(s) Next 我用表事件的GetValues只能提出集合
|
| -- 作者：有点蓝 -- 发布时间：2022/5/14 13:34:00 -- 可以的，用法完全一样。这种自己试试就知道了 |