知道 map的容量 那么map的initialCapacity 应该填多少?是直接填容量吗?
Map<String, String> dataSource = new HashMap<>(4); Element element = list.get(0); List content = element.content(); for (Object o : content) { Element e = (Element) o; String name = e.attributeValue("name"); String value = e.attributeValue("value"); dataSource.put(name, value); }