Map的遍历方法

1.使用Entry

//HashMap<String, Object> map
for(Entry<String, Object> e : map.entrySet()){
	//function code
}

2.使用Iterator

//HashMap<Map, Object> map
Iterator<Entry<String, Object>>myItera = map.entrySet().iterator();
while(myItera.hasNext()){
	Entry<String, Object> e = myItera.next();
	//function code
}