Vb.net Visual Basic赢得';t打印到文本框
这是我遇到问题的代码:Vb.net Visual Basic赢得';t打印到文本框,vb.net,textbox,Vb.net,Textbox,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 & " b
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
我想从TextBox1
和TextBox2
获取信息,然后将其打印到TextBox
,但我很难理解从何开始 试试看
textBox.Text=“您的THR为”&THR.value&“每分钟跳动”
或
textBox.Text=“您的THR为”&THR.value.tostring()&“每分钟跳动一次”
可能
textBox.Text=“你的THR是”+&THR.value&+“一分钟跳动”到底是什么样的故障?没有任何东西会打印到文本框中。。引号中的文本变为红色请为控件指定比“Label1”或“Textbox”更好的名称。它们应该以用途命名。也许您打算从文本框中获取值,并将其放入
a
和r
?否则,这些变量将仅为零。