使用python迭代多个列表

时间：2017-11-13 04:58:37

标签： python list append extend

您好我已经通过Stackoverflow进行了搜索，并且一直在努力解决以下与列表相关的挑战，但作为Python新手，我很难过。

我目前有2个测试数据列表，一个包含用户信息，（新旧用户ID后跟名称数据），另一个列表包含用户和页码（eeIDlist）。我想检查与特定用户关联的页码是否与新ID或旧ID匹配，如果ID匹配，则将页码附加回原始列表。

我已经达到匹配并将列表附加到CompanyName列表，但列表似乎呈指数级增长并代表所有用户页面数据，而不仅仅是与个人关联的页码。

建议热烈欢迎！

我的代码如下：

pagenumbers=[]

for i in CompanyNameList:

    for ee in i:
        for eeid in eeIDlist:
            try:
                if (str(eeid[1]) in ee):
                    pagenumbers.extend([eeid[0]]) 
                    i.append(pagenumbers)
                    i.append([eeid[0]])
            except ValueError:
                print "Not a valid number"

print i

我的源数据如下：

CompanyNameList:

[['144128', '40013', 'John', 'Dodge', 'F', 'DODGEJ'],['144130', '40023', 'John', 'Apple', 'Z', 'APPLEJ'],['144131', '40050', 'Gerald', 'Key', 'M', 'KEYG'],['144138', '40074', 'Saul', 'VanWinkle', 'VANWINKLE']]

用户ID和页码 eeIDlist：

[[144128,1],[144138,12],[144130,6],[144131,9],[40013,153],[40074,310],[40023, 210], 
[40050,250]]

所需的输出清单：

[['144128', '40013', 'John', 'Dodge', 'F', 'DODGEJ',[1,153]],
['144130', '40023', 'John', 'Apple', 'Z', 'APPLEJ',[6,210]], 
['144131', '40050', 'Gerald', 'Key', 'M', 'KEYG',[9,250]],
['144138', '40074', 'Saul', 'VanWinkle', 'VANWINKLE',[12,310]]]

5 个答案:

答案 0 :(得分：1)

您的代码中存在一些错误。

  • 您不需要循环for ee in i。你想检查一下＆＃39; 123214＆＃39; 123214＆＃39; in ['144128', '40013', 'John', 'Dodge', 'F', 'DODGEJ']，例如123214，'144128'，'40013'和'John'中的i.append([eeid[0]])

  • 此外，由于您正在处理pagenumbers，因此您不需要pagenumbers，这已经足够了;你不希望在你的结果中重复。

  • 此外，for应附加在CompanyNameList = [ ['144128', '40013', 'John', 'Dodge', 'F', 'DODGEJ'], ['144130', '40023', 'John', 'Apple', 'Z', 'APPLEJ'], ['144131', '40050', 'Gerald', 'Key', 'M', 'KEYG'], ['144138', '40074', 'Saul', 'VanWinkle', 'VANWINKLE']] eeIDlist = [[144128,1], [144138,12], [144130,6], [144131,9], [40013,153], [40074,310], [40023, 210], [40050,250]] pagenumbers=[] for i in CompanyNameList: for eeid in eeIDlist: try: # eeid[0] not eeid[1] if (str(eeid[0]) in i): # eeid[1] not eeid[0] pagenumbers.extend([eeid[1]]) except ValueError: print ("Not a valid number") i.append(pagenumbers) pagenumbers = [] print CompanyNameList 循环之外。否则，您将获得多个附加列表。

以下是修复代码错误的代码：

[['144128', '40013', 'John', 'Dodge', 'F', 'DODGEJ', [1, 153]], 
 ['144130', '40023', 'John', 'Apple', 'Z', 'APPLEJ', [6, 210]], 
 ['144131', '40050', 'Gerald', 'Key', 'M', 'KEYG', [9, 250]], 
 ['144138', '40074', 'Saul', 'VanWinkle', 'VANWINKLE', [12, 310]]]

输出：

public class GlowPanel extends JPanel{

//Attributes
private MouseAdapter repaintAdapter;
private MouseAdapter redispatchAdapter;
private static Color INNER_COLOR = new Color(30, 30, 30, 127);
private static Color OUTER_COLOR = new Color(90, 90, 90, 127);
private static int RADIUS = 25;
private static int DIAMETER = RADIUS * 2;
private Thread glowThread;
private static Point p = new Point(0,0);
private static GlowPanel glowPanel;
private static Boolean MOUSE_LISTEN_STATE = true;
private static Boolean GLOW_THREAD_STATE = false;
private Boolean CURRENT_STATE;
private static ButtonGroup buttonGroup;

//Start Constructor
public GlowPanel(){
    //Set Attributes
    this.setName("GLOW PANEL");
    this.setOpaque(false);
    this.setVisible(true);
    //this.event

    //Add MouseMouseListener
    this.repaintAdapter = new RepaintMouseAdapter(this);
    this.redispatchAdapter = new RedispatchAdapter();
}
//End Constructor

//Start Methods

/**
 * Set state to mouseListen
 */
public synchronized void setStateMouseListen(){
    if(!MOUSE_LISTEN_STATE.equals(CURRENT_STATE)){
        if(this.glowThread != null){
            this.glowThread.interrupt();
        }
        this.addMouseMotionListener(this.repaintAdapter);
        this.addMouseListener(this.redispatchAdapter);
        this.addMouseMotionListener(this.redispatchAdapter);
        CURRENT_STATE = MOUSE_LISTEN_STATE;
    }
}

/**
 * Set state to off (don't do any effects)
 */
public synchronized void setStateOff(){
    if(this.glowThread != null){
        this.glowThread.interrupt();
    }
    this.removeMouseMotionListener(this.repaintAdapter);
    this.removeMouseListener(this.redispatchAdapter);
    this.removeMouseMotionListener(this.redispatchAdapter);
    CURRENT_STATE = null;
}

/**
 * Set state to GlowThread
 */
public synchronized void setStateGlowThread(){
    if(!GLOW_THREAD_STATE.equals(CURRENT_STATE)){
        this.removeMouseMotionListener(this.repaintAdapter);
        this.removeMouseListener(this.redispatchAdapter);
        this.removeMouseMotionListener(this.redispatchAdapter);
        this.glowThread = new Thread(new Runnable(){
            public void run(){
                while(!Thread.currentThread().isInterrupted()){
                    try {
                        Thread.sleep(1000);
                        GlowPanel.this.p = MouseInfo.getPointerInfo().getLocation(); 
                        SwingUtilities.convertPointFromScreen(p, GlowPanel.this);
                        GlowPanel.this.repaint();
                    }   catch (InterruptedException e) {
                        Thread.currentThread().interrupt();
                    }
                }
            }
        });
        this.glowThread.start();
        CURRENT_STATE = GLOW_THREAD_STATE;
    }
}

@Override
public void paintComponent(Graphics g){
    super.paintComponent(g);
    Point p = GlowPanel.this.p;
    Shape circle = new Ellipse2D.Double(p.getX() - RADIUS, p.getY() - RADIUS, DIAMETER, DIAMETER);
    Graphics2D g2 = (Graphics2D) g;

    g2.setColor(GlowPanel.INNER_COLOR);

    //g2.fill(circle);
    Shape circle2 = new Ellipse2D.Double(p.getX() - RADIUS + 9, p.getY() - RADIUS + 9, DIAMETER - 18, DIAMETER - 18);
    //Area a = new Area(circle);
    //a.subtract(new Area(circle2));
    g2.fill(circle);
    g2.setColor(GlowPanel.OUTER_COLOR);
    g2.fill(circle2);
}

/**
 * Create GUI used to show example
 */
public static void createGUI(){
    JFrame jFrame = new JFrame();

    //GlowPanel
    GlowPanel.glowPanel = new GlowPanel();

    //ContentPanel
    JPanel contentPanel = new JPanel();
    GridBagLayout gBL = new GridBagLayout();
    gBL.columnWidths = new int[]{100, 100, 100};
    gBL.rowHeights = new int[]{200, 50};
    contentPanel.setLayout(gBL);

    //Initial Constraints
    GridBagConstraints gBC = new GridBagConstraints();
    gBC.fill = GridBagConstraints.BOTH;
    gBC.gridx = 0;
    gBC.gridy = 0;
    gBC.weightx = 1;
    gBC.weighty = 1;
    gBC.gridwidth = 3;

    //Hover Panel
    JPanel hoverPanel = new JPanel();
    hoverPanel.setOpaque(true);
    hoverPanel.setBackground(Color.blue);
    hoverPanel.addMouseListener(new MouseAdapter(){

        @Override
        public void mouseClicked(MouseEvent e){}

        @Override
        public void mousePressed(MouseEvent e){}

        @Override
        public void mouseReleased(MouseEvent e){}

        @Override
        public void mouseEntered(MouseEvent e){
            hoverPanel.setBackground(Color.yellow);

        }

        @Override
        public void mouseExited(MouseEvent e){
            hoverPanel.setBackground(Color.blue);
        }

    });
    contentPanel.add(hoverPanel, gBC);

    //Create Buttons
    JToggleButton mouseListenButton = new JToggleButton("Mouse Listen");
    mouseListenButton.addActionListener(new AbstractAction(){
        @Override
        public void actionPerformed(ActionEvent e) {
            GlowPanel.glowPanel.setStateMouseListen();
        }
    });
    gBC.gridy++;
    gBC.weighty = 1;
    gBC.gridwidth = 1;
    contentPanel.add(mouseListenButton, gBC);

    JToggleButton glowThreadButton = new JToggleButton("GlowThread Button");
    glowThreadButton.addActionListener(new AbstractAction(){
        @Override
        public void actionPerformed(ActionEvent e) {
            GlowPanel.glowPanel.setStateGlowThread();
        }
    });
    gBC.gridx++;
    contentPanel.add(glowThreadButton, gBC);

    JToggleButton offButton = new JToggleButton("Off Button");
    offButton.addActionListener(new AbstractAction(){
        @Override
        public void actionPerformed(ActionEvent e) {
            GlowPanel.glowPanel.setStateOff();
        }
    });
    gBC.gridx++;
    contentPanel.add(offButton, gBC);

    GlowPanel.buttonGroup = new ButtonGroup();
    GlowPanel.buttonGroup.add(mouseListenButton);
    GlowPanel.buttonGroup.add(glowThreadButton);
    GlowPanel.buttonGroup.add(offButton);


    jFrame.setContentPane(contentPanel);
    jFrame.setGlassPane(GlowPanel.glowPanel);
    jFrame.getGlassPane().setVisible(true);
    jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    jFrame.pack();
    jFrame.setVisible(true);
}

public static void main(String[] args){
    SwingUtilities.invokeLater(new Runnable(){
        public void run(){
            GlowPanel.createGUI();
        }
    });
}

@Override
public boolean isOptimizedDrawingEnabled(){
    return false;
}
//End Methods

public static class RepaintMouseAdapter extends MouseAdapter{
    private JComponent jC;

    public RepaintMouseAdapter(JComponent jC){
        this.jC = jC;
    }

    @Override
    public void mouseMoved(MouseEvent e){
        GlowPanel.p = e.getPoint();
        this.jC.repaint();
    }
}

public static class RedispatchAdapter extends MouseAdapter{
    private JComponent lastComponentEntered;


    @Override
    public void mouseClicked(MouseEvent e){
        this.dispatchEvent(e);
    }

    @Override
    public void mousePressed(MouseEvent e){
        this.dispatchEvent(e);
    }

    @Override
    public void mouseReleased(MouseEvent e){
        this.dispatchEvent(e);
    }

    @Override
    public void mouseEntered(MouseEvent e){
        this.dispatchEvent(e);
        System.out.println("MOUSE ENTERED");
    }

    @Override
    public void mouseExited(MouseEvent e){
        this.dispatchEvent(e);
    }

    @Override
    public void mouseWheelMoved(MouseWheelEvent e){
        this.dispatchEvent(e);
    }

    @Override
    public void mouseDragged(MouseEvent e){
        this.dispatchEvent(e);
    }

    @Override
    public void mouseMoved(MouseEvent e){
        this.dispatchEvent(e);
    }

    private void dispatchEvent(MouseEvent e) {
        Component glass = (Component) e.getSource();
        Point glassPanePoint = e.getPoint();
        Container container = glass.getParent();
        Point containerPoint = SwingUtilities.convertPoint(glass,
                glassPanePoint, container);

        if (containerPoint.y < 0) { // we're not in the content pane
            // Could have special code to handle mouse events over
            // the menu bar or non-system window decorations, such as
            // the ones provided by the Java look and feel.
        } else {
            // The mouse event is probably over the content pane.
            // Find out exactly which component it's over.
            JComponent component = (JComponent) GlowPanel.getDeepestComponentAt(
                    container, containerPoint.x, containerPoint.y);
            //System.out.println(component);
            if (component != null) {
                // Forward events to component below
                Point componentPoint = SwingUtilities.convertPoint(
                        glass, glassPanePoint, component);
                if(e instanceof MouseWheelEvent){
                    MouseWheelEvent wE = (MouseWheelEvent) e;
                    component.dispatchEvent(new MouseWheelEvent(component, wE.getID(), wE.getWhen(),
                            wE.getModifiers(), componentPoint.x, componentPoint.y, wE.getClickCount(),
                            wE.isPopupTrigger(), wE.getScrollType(), wE.getScrollAmount(), wE.getWheelRotation()));
                }   else{
                    component.dispatchEvent(new MouseEvent(component, e
                            .getID(), e.getWhen(), e.getModifiers(),
                            componentPoint.x, componentPoint.y, e
                                    .getClickCount(), e.isPopupTrigger()));
                }


                if(this.lastComponentEntered != null && !this.lastComponentEntered.equals(component)){
                    System.out.println(!this.lastComponentEntered.equals(component));
                }
                if(this.lastComponentEntered != null && !this.lastComponentEntered.equals(component)){
                    e.getComponent().setCursor(component.getCursor());
                    component.dispatchEvent(new MouseEvent(component, MouseEvent.MOUSE_ENTERED, e.getWhen(),
                            e.getModifiers(), componentPoint.x, componentPoint.y,
                            e.getClickCount(), e.isPopupTrigger()));
                    Point lastComponentPoint = SwingUtilities.convertPoint(
                            glass, glassPanePoint, this.lastComponentEntered);
                    this.lastComponentEntered.dispatchEvent(new MouseEvent(this.lastComponentEntered,
                            MouseEvent.MOUSE_EXITED, e.getWhen(),
                            e.getModifiers(), lastComponentPoint.x, lastComponentPoint.y,
                            e.getClickCount(), e.isPopupTrigger()));
                }
                this.lastComponentEntered = component;
                System.out.println(this.lastComponentEntered);
            }


        }
        e.getComponent().repaint();
    }

}

public static Component getDeepestComponentAt(Component parent, int x, int y) {
    if (!parent.contains(x, y)) {
        return null;
    }
    if (parent instanceof Container) {
        Component components[] = ((Container)parent).getComponents();
        for (Component comp : components) {
            if (comp != null && comp.isVisible() && !(comp instanceof GlowPanel) && !(comp instanceof JLabel)) {
                Point loc = comp.getLocation();
                if (comp instanceof Container) {
                    comp = getDeepestComponentAt(comp, x - loc.x, y - loc.y);
                } else {
                    comp = comp.getComponentAt(x - loc.x, y - loc.y);
                }
                if (comp != null && comp.isVisible()) {
                    return comp;
                }
            }
        }
    }
    return parent;
}

答案 1 :(得分：1)

这里有一些代码可以解决这个问题（虽然它不是最多 python ic）：

from pprint import pprint as pp

company_name_list = [['144128', '40013', 'John', 'Dodge', 'F', 'DODGEJ'],
                     ['144130', '40023', 'John', 'Apple', 'Z', 'APPLEJ'],
                     ['144131', '40050', 'Gerald', 'Key', 'M', 'KEYG'],
                     ['144138', '40074', 'Saul', 'VanWinkle', 'VANWINKLE']]

id_page_list = [[144128, 1],
                [144138, 12],
                [144130, 6],
                [144131, 9],
                [40013, 153],
                [40074, 310],
                [40023, 210],
                [40050, 250]]


if __name__ == "__main__":
    id_str_page_list = [[str(item[0]), item[1]] for item in id_page_list]
    for employee in company_name_list:
        pages_list = list()
        for id_page in id_str_page_list:
            if id_page[0] == employee[0] or \
                    id_page[0] == employee[1]:
                pages_list.append(id_page[1])
        if pages_list:
            employee.append(pages_list)

    pp(company_name_list)

备注：

  • 我将整数ID从id_str_page转换为字符串，并使用[Python]: List Comprehensions将其保存到id_str_page_list，以便立即执行所有转换
  • 然后我迭代每个员工，如果在 st 位置的2 nd 列表中找到其中一个 id s，我＆＃34;保存＆＃34;另一个列表中的页码，最后（如果不是空的话）我将其附加到员工列表
  • 我将一些变量重命名为[Python]: PEP 8 -- Style Guide for Python Code兼容

<强>输出：

c:\Work\Dev\StackOverflow\q47257333>"c:\Work\Dev\VEnvs\py35x64_test\Scripts\python.exe" a.py
[['144128', '40013', 'John', 'Dodge', 'F', 'DODGEJ', [1, 153]],
 ['144130', '40023', 'John', 'Apple', 'Z', 'APPLEJ', [6, 210]],
 ['144131', '40050', 'Gerald', 'Key', 'M', 'KEYG', [9, 250]],
 ['144138', '40074', 'Saul', 'VanWinkle', 'VANWINKLE', [12, 310]]]

答案 2 :(得分：1)

您还可以将 eeIDlist 转换为字典，这样可以更快地搜索它。这也可以让你在一行中执行整个操作：

eeIDdict = dict(eeIDlist)
[j.append([eeIDdict[int(k)] for k in j[0:2]]) for j in CompanyNameList]

现在我们有：

CompanyNameList = 
[['144128', '40013', 'John', 'Dodge', 'F', 'DODGEJ', [1, 153]],
['144130', '40023', 'John', 'Apple', 'Z', 'APPLEJ', [6, 210]],
['144131', '40050', 'Gerald', 'Key', 'M', 'KEYG', [9, 250]],
['144138', '40074', 'Saul', 'VanWinkle', 'VANWINKLE', [12, 310]]]

根据需要。

答案 3 :(得分：1)

我同意罗比的观点，eeIDlist应该是一个字典......但除此之外，这里是使用您的列表的解决方案。

for c in CompanyNameList:
    c.append([
        next(e[1] for e in eeIDlist if e[0] == int(c[0])),
        next(e[1] for e in eeIDlist if e[0] == int(c[1])),
    ])
    print(c)

将next()与生成器一起使用意味着只要找到匹配项，列表就会停止搜索。

答案 4 :(得分：1)

我已更正您的代码

CompanyNameList = [['144128', '40013', 'John', 'Dodge', 'F', 'DODGEJ'],['144130', '40023', 'John', 'Apple', 'Z', 'APPLEJ'],['144131', '40050', 'Gerald', 'Key', 'M', 'KEYG'],['144138', '40074', 'Saul', 'VanWinkle', 'VANWINKLE']]
eeIDlist = [[144128,1],[144138,12],[144130,6],[144131,9],[40013,153],[40074,310],[40023, 210], [40050,250]]

for CompanyName in CompanyNameList:
    pageList = []
    newID = int(CompanyName[0])
    oldID = int(CompanyName[1])
    for eeID in eeIDlist:
        if eeID[0] == newID or eeID[0] == oldID:
            pageList.append(eeID[1])
    CompanyName.append(pageList)

print(CompanyNameList)
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