不能创建对象

2009-04-30 09:30:53 143 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

从星形到三角形：永磁同步电机FOC+SVPWM控制的相位偏移与扇区重构本文深入探讨了将FOC+SVPWM控制方案从星形接法永磁同步电机移植到三角形接法时遇到的核心挑战。文章重点解析了由绕组连接方式差异导致的30度相位偏移问题，并详细阐述了如何为此重构扇区判断逻辑、矢量作用时间计算以及电流采样变换，为工程师提供了从理论到实践的完整移植指南。阅读详情

不能创建test对象。这是个向导式对话框，现在要创建test对象但是不知为何不行

public class NewChannelWizard extends Wizard {

	public static String cb;

	private NewChannelOne one = new NewChannelOne();

	private NewChannelTwo two = new NewChannelTwo();

	test t=new test();

	public NewChannelWizard() {	

		this.addPage(one);

		this.addPage(two);

		this.setWindowTitle("New Channel");

		

	}



	@Override

	public boolean performFinish() {

		

		String channelurl ;

		String channel_name ;

		String category_name ;	

		URL feedUrl = null;

		System.out.println("1");

		channelurl = one.text.getText();

		channel_name = two.text.getText();

		category_name = two.combo.getText();	

		

		try {

			t.done(feedUrl,category_name);

		} catch (IllegalArgumentException e) {

			// TODO Auto-generated catch block

			System.out.println("2");

			e.printStackTrace();

		} catch (IOException e) {

			// TODO Auto-generated catch block

			System.out.println("3");

			e.printStackTrace();

		} catch (FeedException e) {

			// TODO Auto-generated catch block

			System.out.println("4");

			e.printStackTrace();

		}

		

		

		ChannelView.db.addChannel(channelurl, channel_name, category_name,null );// 作者从解析器获取

		ChannelView.initdata();

		ChannelView.tree.setInput(ChannelView.data);

		ChannelView.tree.refresh();



	



		return true;

	}

	public boolean canFinish(){

		if(this.getContainer().getCurrentPage()==two){

			return true;

		}

		else

			return false;

		

	}









}

public class test {



	public test(){

		System.out.println("test");

		

	}

	public void done(URL channelurl,String category_name) throws IllegalArgumentException, IOException, FeedException{

		int articlecount;

		String author = null;

		String content= null;

		String pubdate= null;

		String articleurl= null;

		String title = null;

		URL feedUrl = null;

			Listen lis=new Listen(feedUrl);

			List entry=lis.parseroutput.getEntries();

			articlecount=entry.size();

			for(int i=0;i<articlecount;i++){

				articleurl=lis.parseroutput.getLink(i);

				title=lis.parseroutput.getTitle(i);

				pubdate=lis.parseroutput.getPubDate(i).toString();

				content=lis.parseroutput.getDescription(i);

				author=lis.parseroutput.getAuthor(i);

				ChannelView.db.addArticle(articleurl,title, pubdate, content, channelurl.toString(), category_name, author);

			}

		

	}



}