Android的SQLite的这个数据库操作有问题么

Question

为什么一运行就崩掉了，编译没错

        private String user;
    private String privilege;
    private String[] kekongfangjian;
    private PrivilegeHelper ph;
    private SQLiteDatabase db;

        ph = new PrivilegeHelper(ControlActivity.this,"Privilege.db",null,1);
    db = ph.getWritableDatabase();
        Cursor cursor = db.query("privilege_table",new String[]{"id","user","privilege"},"id=?",new String[]{"1"},null,null,null);
    while (cursor.moveToNext()){
    user = cursor.getString(cursor.getColumnIndex("user"));
    privilege = cursor.getString(cursor.getColumnIndex("privilege"));
    }
    String[] strs=privilege.split("@");
    System.arraycopy(strs,4,kekongfangjian,0,strs.length-4);

Answer 1

db.close 打开数据库使用结束要关闭