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)
----  [转发]LINQ简单用法  (http://www.foxtable.com/bbs/dispbbs.asp?boardid=2&id=170917)
--  作者：wei0769
--  发布时间：2021/8/11 12:37:00
--  [转发]LINQ简单用法
从网上抄来的,可以在FT中使用

Dim a As Integer() = {1, 2, 3, 4, 5, 6, 7}
Dim b As Integer() = {4, 5, 6, 7, 8, 9, 10}
Dim c As Integer() = {1, 2, 3, 3, 4, 1, 2, 4, 6, 1, 6, 5}
Dim v1() As String = {"中国","美国","日本","俄罗斯"}
Dim aa As New List(of Integer)
Dim bb As New List(of Integer)
aa.AddRange(a) \'将数组中的元素全部加入到集合中
bb.AddRange(b) \'将集合s1中的元素全部加入到集合s2中
\' 交集
Dim 交集 = a.Intersect(b)
\' 并集
Dim 并集 = a.Union(b)
\' a有b没有的
Dim diff1 = a.Except(b)
\' b有a没有的
Dim diff2 = b.Except(a)
Dim diff3 = aa.except(bb)

Dim max = a.Max()
Dim min = a.Min()
Dim avg = a.Average()
Dim dis = c.Distinct()
For Each ab As Integer In diff1
    output.show("arr   " & ab)
Next

For Each ab As Integer In diff3
output.show("list   " & ab)
Next


For Each ab As Integer In dis
output.show("distinct   " & ab)
Next



[此贴子已经被作者于2021/8/11 12:41:39编辑过]