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//允许输入的字符
string AstrictChar = "0123456789,";
//「BackSpace」「Delete」后退键正常删除操作
if ((Keys)(e.KeyChar) == Keys.Back || (Keys)(e.KeyChar) == Keys.Delete)
{
return;
}
//「Ctrl+C」(3)「Ctrl+X」(24)特殊组合键正常
//「Ctrl+Z」(26) 撤消组合键正常
if ((e.KeyChar == 3) || (e.KeyChar == 24) || (e.KeyChar == 26))
{
return;
}
//允许输入的字符外,
if (AstrictChar.IndexOf(e.KeyChar.ToString()) == -1)
{
e.Handled = true;
return;
}
Point pt = PointToScreen(new Point(QQFaceButton .Left, QQFaceButton .Top));
ilp.Show(pt.X + 10, pt.Y + 70);//显示窗体