.net 反射调用私有变量
FrmQuery frmQuery = new FrmQuery();//实例化变量
Type t = frmQuery.GetType();
var res = t.GetField("txtSqlConditon",System.Reflection.BindingFlags.NonPublic| System.Reflection.BindingFlags.Instance);
var value = res.GetValue(frmQuery);//取得值