用DOM实现文章采集--采集到网页源码(11)

                                encoding = Encoding.Default; 
                            } 
                            else 
                            { 
                                encoding = Encoding.GetEncoding(response.CharacterSet); 
                            } 
                        } 
                        else 
                        { 
                            encoding = Encoding.GetEncoding(response.CharacterSet); 
                        } 
                        if (str.Length == 0) 
                        { 
                            encoding = Encoding.Default; 
                        } 
                    } 
                    else 
                    {