private void Alarm_log_FormClosing(object sender, FormClosingEventArgs e) { _instance = null; }
//创建窗体对象的静态方法 public static Alarm_log InstanceObject() { if (_instance == null) _instance = new Alarm_log(); return _instance; }
private void Alarm_log_FormClosing(object sender, FormClosingEventArgs e) { _instance = null; }
//创建窗体对象的静态方法 public static Alarm_log InstanceObject() { if (_instance == null) _instance = new Alarm_log(); return _instance; }