/// <summary>
/// 是否为控制字符
/// </summary>
/// <param name="keyChar">正在输入的字符</param>
/// <param name="checkControlGroupKeys">是否检查Ctrl组合键</param>
/// <returns></returns>
public static bool IsControlChar(char keyChar, bool checkControlGroupKeys = true)
{
return(ControlChars.Contains(keyChar) || (checkControlGroupKeys && ControlGroupKeys.Contains(keyChar)));
}
