在if语句中使用return会做什么? [英] What does return do when used inside an if statement?

问题描述

在以下代码中，if语句中的返回值是什么?

What does the return inside the if statements do in the following code?

public void startElement(String namespaceURI, String localName,String qName, 
                                         Attributes atts) throws SAXException
{
    depth++;
    if (localName.equals("channel"))
    {
        currentstate = 0;
        return;
    }
    if (localName.equals("image"))
    {
        // record our feed data - you temporarily stored it in the item :)
        _feed.setTitle(_item.getTitle());
        _feed.setPubDate(_item.getPubDate());
    }
    if (localName.equals("item"))
    {
        // create a new item
        _item = new RSSItem();
        return;
    }
    if (localName.equals("title"))
    {
        currentstate = RSS_TITLE;
        return;
    }
    if (localName.equals("description"))
    {
        currentstate = RSS_DESCRIPTION;
        return;
    }
    if (localName.equals("link"))
    {
        currentstate = RSS_LINK;
        return;
    }
    if (localName.equals("category"))
    {
        currentstate = RSS_CATEGORY;
        return;
    }
    if (localName.equals("pubDate"))
    {
        currentstate = RSS_PUBDATE;
        return;
    }
    // if you don't explicitly handle the element, make sure you don't wind 
           // up erroneously storing a newline or other bogus data into one of our 
           // existing elements
    currentstate = 0;
}

它是否使我们脱离if语句并继续执行下一条语句，还是使我们脱离方法startElement?

Does it takes us out of the if statement and proceeds to next statement or it takes us out of the method startElement?

推荐答案

以上代码中的返回将使您退出方法.

The returns in the above code will take you out of the method.

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