1 2 3 4 5 6 7 8 9 10 11 12 | Try Dim tsnBegin As TimeSpan = TimeSpan.Parse(TextBox1.Text) Dim tsnFinish As TimeSpan = TimeSpan.Parse(TextBox2.Text) If tsnFinish < tsnBegin Then MsgBox("開始時間不能比結束時間還大", 16, "錯誤") Exit Sub End If Dim tsnDuration As TimeSpan = tsnFinish - tsnBegin Catch ex As Exception MsgBox("時間格式錯誤", 16, "錯誤") End Try |
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