作业是用Visual Studio做个21点游戏，不会写程序求大神帮忙（代码是一开始的，不会编下去了，文档里有要求，求帮忙）

Public Class Form1
    Dim p(5), c(5) As Integer

    Private Sub btnPlay_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnPlay.Click
        Dim t As Integer
        p(1) = Int(Rnd() * 52 + 1)
        Do
            t = Int(Rnd() * 52 + 1)
        Loop While t = p(1)
        c(1) = t
        Do
            t = Int(Rnd() * 52 + 1)
        Loop While t = p(1) Or t = c(1)
        p(2) = t
        Do
            t = Int(Rnd() * 52 + 1)
        Loop While t = p(1) Or t = c(1) Or t = p(2)
        c(2) = t
        picP1.Image = Image.FromFile("Images\" & p(1) & ".jpg")
        picC1.Image = Image.FromFile("Images\" & c(1) & ".jpg")
        picP2.Image = Image.FromFile("Images\" & p(2) & ".jpg")
        picC2.Image = Image.FromFile("Images\back.jpg")
    End Sub

    Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        Randomize()
    End Sub
End Class