PS C:\> Test-DollarUnderscore-Test'Some Data' received: Some Data
但是请看当您通过管道传送一个数据给该函数时发生了什么:
1 2 3 4 5
PS C:\> 1..4 | Test-DollarUnderscore -Test { "I am receiving $_" } received: I am receiving 1 received: I am receiving 2 received: I am receiving 3 received: I am receiving 4