Visual Basic不会打印到文本框

Question

这是我遇到问题的代码：

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
    Dim THR As Double
    Dim a As Double
    Dim r As Double
    THR = CDbl(0.7 * (220 - a) + 0.3 * r)
    textBox.Text = "Your THR is" & THR & " beats a minute"

End Sub

我希望从TextBox1和TextBox2获取信息，然后将其打印到TextBox，但我很难理解从哪里开始。

Answer 1

尝试

textBox.Text =“你的THR是”＆amp; THR.value＆amp;“打一分钟”

OR

textBox.Text =“你的THR是”＆amp; THR.value.tostring（）＆amp; “打一分钟”

可能......

textBox.Text =“你的THR是”+＆amp; THR.value＆amp; +“打一分钟”