#眉標=PowerShell
#副標=PowerShell = Shell + Script + .NET（8）
#大標=劇本區塊與物件
#作者=文／蔡學鏞


==<反灰>===========
PS > 1..5 |&{process{$_ * 2}}
==<end>==============





==<反灰>===========
PS > function foo {"2+2"}
PS > foo
4
PS > (dir function:foo).ScriptBlock
2+2
==<end>==============





==<反灰>===========
PS > $function:foo
2+2
PS > $function:foo.gettype().Fullname
System.Management.Automation.ScriptBlock
==<end>==============





==<反灰>===========
PS > $function:foo = {"Bye!"}
==<end>==============




==<反灰>===========
PS > foo
Bye!
==<end>==============



==<反灰>===========
PS > $s = "Hi there"
==<end>==============




==<反灰>===========
PS > $s.length
8
==<end>==============




==<反灰>===========
PS > $s = add-member -passthru -in $s aliasproperty size length
==<end>==============




==<反灰>===========
PS > $s.size
8
==<end>==============




==<反灰>===========
PS > function loop ([int] $i, [scriptblock] $b) {
>> while ($i-- -gt 0) { . $b }
>> }
>>
==<end>==============




==<反灰>===========
PS > loop 3 { "Hello world" }
Hello world
Hello world
Hello world
==<end>==============




==<反灰>===========
PS > $a = add-member -pass -in $a scriptmethod sum {
>> $r=0
>> foreach ($e in $this) {$r += $e}
>> $r
>> }
>>
==<end>==============




==<反灰>===========
PS > $a.sum()
10
==<end>==============




==<反灰>===========
PS > invoke-expression '$a=2+2; $a'
4
==<end>==============




==<反灰>===========
ExecutionContext變數
==<end>==============




==<反灰>===========
PS > $function:foo = {"Hello there"}
PS > foo
Hello there
==<end>==============



==<反灰>===========
PS > new-item function:foo -value {"Hi!"} -force
CommandType Name Definition
----------- ---- ----------
Function foo "Hi!"
==<end>==============