分类:
2008-08-18 11:45:55
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TextBox键盘事件ReadOnly = true 然后键盘Delete和BackSpace键删除内容:
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chinaunix网友2009-04-20 19:45:18
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.Collections; namespace calc { public partial class Calc : Form { private string[] arrstring = new string[3]; private int flag = 1; private string jisuan(string a,string ysf,string c) { double result = 0; switch (ysf.Trim()) {