str=34X+45Y=67Z x=split(str,"X")(0) ‘以X分割，取第0段，即：34 y=split(split(str,'+')(1),'Y')(0) '以+分割，取第1段即：45Y=67Z，再以Y分割，取0段得45 z=split(split(str,'=')(1),'Y')(0) '同上 把字符串分割，查找，截取这些常用字符串处理函数掌握了，就...
text1.text=format(text1.text,"0.00")end sub
1 首先，我们最好是添加一个模块，那么无论你有多少个TextBox控件需要实现只能输入数字，都可以直接调用即可。2 打开Modoule1模块，先定义3个全局变量，用来保存TextBox的现态，代码如下：'LastText变量用于记录TextBox的上次正确输入'LastLen变量用于保存TextBox的上次正确输入时的字符串长度，以便恢复光标...
将输入的字符串用split函数分开，把所有得到的部分检查是不是数字，如果是累加一下
Option Explicit Private Sub Form_Load()Text1.Text = ""Text2.Text = ""End Sub Private Sub Text1_KeyDown(KeyCode As Integer, Shift As Integer)Dim Mark As Boolean If KeyCode = vbKeyReturn Then If Right(Text2.Text, 1) <> "+" Or Right(Text2.Text, 1) <> "-" Then If ...
Private MyTextBox(10) As TextBox Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load MyTextBox(1) = TextBox1 : MyTextBox(2) = TextBox2 : MyTextBox(3) = TextBox3 : MyTextBox(4) = TextBox4 : MyTextBox(5) = ...
Private Sub Text2_KeyPress(KeyAscii As Integer)If KeyAscii < 48 Or KeyAscii > 57 Then KeyAscii = 0 End Sub Private Sub Text2_LostFocus()If Len(Text2) = 1 Then Text2.SetFocus End Sub 已经运行过。功能：在text1中只能输入0－9之间的数字。在text2中只能输入15－22之间的数字，...
dim s as string s="year"&vbtab&vbtab&"Population"&vbtab&vbtab&"Increase"&vbcrlf s=s&"1"&vbtab&vbtab&"33666.33"&vbtab&vbtab&"333.33"&vbcrlf s=s&"2"&vbtab&vbtab&"34002.99"&vbtab&vbtab&"336.66"&vbcrlf text1.text=s ...
Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged Dim num As Integer = 0 Dim temp As String = "" While num < TextBox1.Text.Length temp += "[0-9]" num += 1 ...
val(textbox.text)但首先要保证是数字