비주얼 베이직2010으로 평균평점 계산기를 만들고 있습니다. (완전 초심자) Public Class frmGrade Private Sub btnTask_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnTask.Click Dim count, sum As Integer Dim avg As Double If chkIntro.Checked = True Then count = count + 1 sum = sum + CInt(txtIntro.Text) End If If chkOS.Checked ..