[.NET] 關於轉型的問題!!

看板Visual_Basic作者tidus508 (翔仔)時間15年前 (2009/08/09 16:50)推噓1(1推 0噓 3→)

留言4則, 3人參與討論串1/2 (看更多)

請輸入專案類型(網站專案或者應用程式專案)： Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim val1, val2 As Integer val1 = Convert.ToInt32(TextBox1.Text) val2 = Convert.ToInt32(TextBox2.Text) Select Case ComboBox1.SelectedItem case Label1.Text = Convert.ToString(val1 + val2) Case Label1.Text = Convert.ToString(val1 - val2) Case Label1.Text = Convert.ToString(val1 * val2) Case Label1.Text = Convert.ToString(val1 / val2) Case Label1.Text = Convert.ToString(val1 ^ val2) Case Label1.Text = Convert.ToString(val1 Mod val2) End Select End Sub End Class 我有將OPTION STRICT改成ON，所以case後面不能接成這樣"+" 錯誤清單又說請使用 'Is'運算子測試物件識別。我又不想改成SelectedIndex 因為對我來說很麻請大家幫我解答一下應該怎樣改 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 118.160.91.238

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MOONRAKER

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MOONRAKER

08/09 23:49, , 3^F

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