/// <summary>
/// 菜单：重做
/// </summary>
private void 重做ToolStripMenuItem_Click(object sender, EventArgs e)
{
this.menuStrip1.Items.Find("撤销ToolStripMenuItem", true)[0].Enabled = core.IsAbleUndo();
this.menuStrip1.Items.Find("重做ToolStripMenuItem", true)[0].Enabled = core.MenuRedo();
this.core.RefreshCodeContext();
}