关于PowerShell调用Linq的一组实验

Windows PowerShell
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尝试新的跨平台 PowerShell https://aka.ms/pscore6

PS C:\> $a = 0..2
PS C:\> $b = 3..5
PS C:\> $a.tostring()
System.Object[]
PS C:\> $c = [Linq.Enumerable]::Zip($a, $b, [Func[Object, Object, Object]]{$args[0]+$args[1]})
PS C:\> $c
3
5
7
PS C:\> $c[0]
3
5
7
PS C:\> $c.tostring()
System.Linq.Enumerable+<ZipIterator>d__61`3[System.Object,System.Object,System.Object]
PS C:\> $d = $c | % { $_ }
PS C:\> $d[0]
3
PS C:\> $d.tostring()
System.Object[]
PS C:\> $c = [Linq.Enumerable]::Zip($a, $b, [Func[Object, Object, Object]]{ @{ i=$args[0]; j=$args[1] } })
PS C:\> $c

Name                           Value
----                           -----
j                              3
i                              0
j                              4
i                              1
j                              5
i                              2


PS C:\> $c[0]

Name                           Value
----                           -----
j                              3
i                              0
j                              4
i                              1
j                              5
i                              2


PS C:\> $c.i
0
1
2
PS C:\> $c.tostring()
System.Linq.Enumerable+<ZipIterator>d__61`3[System.Object,System.Object,System.Object]
PS C:\> $d = $c | % { $_ }
PS C:\> $d

Name                           Value
----                           -----
j                              3
i                              0
j                              4
i                              1
j                              5
i                              2


PS C:\> $d[0]

Name                           Value
----                           -----
j                              3
i                              0


PS C:\> $d[0].i
0
PS C:\> $d.tostring()
System.Object[]
PS C:\> $c = [Linq.Enumerable]::Zip($a, $b, [Func[Object, Object, Object]]{ ($args[0], $args[1]) })
PS C:\> $c
0
3
1
4
2
5
PS C:\> $c.tostring()
System.Linq.Enumerable+<ZipIterator>d__61`3[System.Object,System.Object,System.Object]
PS C:\> $c[0]
0
3
1
4
2
5
PS C:\> $d = $c | % { $_ }
PS C:\> $d
0
3
1
4
2
5
PS C:\> $d[0]
0
PS C:\> $d[1]
3
PS C:\> $d.tostring()
System.Object[]
PS C:\> $d = [Linq.Enumerable]::ToArray($c)
PS C:\> $d[0]
0
3
PS C:\> $d[0][0]
0
PS C:\> $d.tostring()
System.Object[]
PS C:\> $c = [Linq.Enumerable]::Zip($a, $b, [Func[Object, Object, int[]]]{($args[0], $args[1])})
PS C:\> $c[0]
0
3
1
4
2
5
PS C:\> $c.tostring()
System.Linq.Enumerable+<ZipIterator>d__61`3[System.Object,System.Object,System.Int32[]]
PS C:\> $d = $c | % { $_ }
PS C:\> $d[0]
0
PS C:\> $d[1]
3
PS C:\> $d.tostring()
System.Object[]
PS C:\> $d = [Linq.Enumerable]::ToArray($c)
PS C:\> $d[0]
0
3
PS C:\> $d[0][0]
0
PS C:\> $d.tostring()
System.Int32[][]
PS C:\> $c = [Linq.Enumerable]::Zip($a, $b, [Func[Object, Object, Object]]{$l = [Collections.Generic.List[int]]::new(); $l.Add($args[0])
; $l.Add($args[1]); $l})                                                                 PS C:\> $c[0]
0
3
1
4
2
5
PS C:\> $d = $c | % { $_ }
PS C:\> $d[0]
0
PS C:\> $d[1]
3
PS C:\> $d.tostring()
System.Object[]
PS C:\> $d = [Linq.Enumerable]::ToArray($c)
PS C:\> $d[0]
0
3
PS C:\> $d[0][1]
3