public void detele(String flag, String stationName) {
db = listHelper.getWritableDatabase();
db.execSQL(
"delete * from " + ListHelper.TABLENAME + " where flag=?,stationName=?",
new String[] {flag, stationName});
db.close();
}
/**
* flag有三种：<br>
* "stationNameList":you known what I mean<br>
* ""
*/
public void add(String flag, String stationName, String listJson) {
db = listHelper.getWritableDatabase();
values = new ContentValues();
values.put("flag", flag);
values.put("stationName", stationName);
values.put("Info", listJson);
db.insert(ListHelper.TABLENAME, null, values);
db.close();
}