Question

listbox控件中的值依次输出到另一个文本框中

Answer 1

楼主的listbox是delphi的吗？如果是：
var
i:integer;
str:string;
begin
for i:=0 to listbox1.count-1 do
begin
str:=listbox1.items.strings[i];
memo1.line.add(str);
end;
如果不是，就当加了2分算了！

Answer 2

1楼是错的。我只晓得从textbox里往listbox里面输入。
Dim dd As String
Private Sub Command1_Click()
Text1.Enabled = False
Text2.Enabled = False
Text3.Enabled = False
List1.Enabled = True
dd = Text1.Text & "(" & Text2.Text & "," & Text3.Text & ")"
List1.AddItem dd
Text1.Enabled = True
Text2.Enabled = True
Text3.Enabled = True
End Sub

Private Sub Command2_Click()
Unload Form1
End Sub

Private Sub Form_Load()
Text1.Enabled = True
Text2.Enabled = True
Text3.Enabled = True
End Sub

Private Sub List1_Click()

End Sub
至于反过来就不晓得了，写这些仅供参考

Answer 3

foreach(listitem i in listbox.items)
{
textbox1.text=i.text;
}