"小明",11,"北京",66));
userList.add(new User("小红",12,"上海",99));
userList.add(new User("小詹"...,14,"杭州",77));
userList.add(new User("小龙",16,"伦敦",55));
userList.add(new User("小斯",9,...age=14, city=杭州, score=77), User(name=小斯, age=9, city=杭州, score=33)],
北京=[User(name=小明, age=11, city...[User(name=小詹, age=14, city=杭州, score=77), User(name=小詹, age=9, city=上海, score=33)],
小明=[User(name=小明..., age=11, city=北京, score=66)],
小红=[User(name=小红, age=12, city=上海, score=99)],
小斯=[User(name=小斯, age