标记一下：
初始化map
Map<String,String> prod = new HashMap<String,String>(){//构造方法
{//构造代码块儿
put("420001056337","X00241003");
put("420001056321","X00241004");
put("420001056338","X00241005");
put("420001056322","X00241006");
put("420001056341","X00241009");
}
};
遍历map
Iterator it = prod.entrySet().iterator();
if(it.hasNext()){
Map.Entry entry = (Entry) it.next();
String value = (String) entry.getValue();//得到value值String key= (String) entry.getKey();//得到key
}
可以用Set<String> key = prod.keySet();
通过遍历set:
for(Iterator it = key.iterator();it.hasNext();){
System.out.println(it.next());
}
这样也可以遍历map