I have a homework and I don’t know what can I do 
These my homework please help me… 
Which problem are you having trouble with? Using (Get-Help Cmdlet) can help you complete your homework.
As a general rule, we aren’t here to help with homework. If you have a specific technical question about PowerShell, we’re happy to try and point you in the right direction. But you’ll need to actually state the question, not make us read your homework.
Additionally, “Heeeelp me pllz” isn’t a suitable post title. The people here are hardworking professionals. We try to help each other. Post titles should reflect the nature of your question - such as “how do I display help in PowerShell?”