HashMasp records
一、keySet
Iterator it = records.keySet().iterator();
while(it.hasNext()){
String row = it.next();
ArrayList rowf = records.get(row);
}
二、entySet
Iterator iter = records.entrySet().iterator();
while (iter.hasNext()) {
Map.Entry entry = (Map.Entry) iter.next();
Object key = entry.getKey();
Object val = entry.getValue();
}
