Question

我是编程新手。

我正在尝试打印嵌套字典中键的值。

ROOM = ""
ROOM_DESC = ""
ROOM_THIS = ""
ROOM_THAT = ""
ROOM_EXM = ""

randdict = {
  "a1": {
    ROOM: "room name",
    ROOM_DESC: "room desc",
    ROOM_THIS: "room this",
    ROOM_THAT: "room that",
    ROOM_EXM: "room exm",
  }
}

print(randdict["a1"][ROOM] + "\n" + randdict["a1"][ROOM_DESC] + "\n" + randdict["a1"][ROOM_THIS])

我期望的结果是：

room name
room desc
room this

相反，我得到的是：

room exm
room exm
room exm

不确定那里出了什么问题，不胜感激。

Answer 1

将密钥更改为以下内容。

randdict = {
  "a1": {
    'ROOM' : "room name",
    'ROOM_DESC' : "room desc",
    'ROOM_THIS': "room this",
    'ROOM_THAT': "room that",
    'ROOM_EXM': "room exm",
  }
}


    print(f"{randdict['a1']['ROOM']} \n{randdict['a1']['ROOM_DESC']} \n{randdict['a1']['ROOM_THIS']}")

Answer 2

使用不同的ROOM，ROOM_DESC，ROOM_THIS，ROOM_THAT和ROOM_EXM值。字典必须具有唯一键。

ROOM = "1"
ROOM_DESC = "2"
ROOM_THIS = "3"
ROOM_THAT = "4"
ROOM_EXM = "5"

randdict = {
  "a1": {
    ROOM: "room name",
    ROOM_DESC: "room desc",
    ROOM_THIS: "room this",
    ROOM_THAT: "room that",
    ROOM_EXM: "room exm",
  }
}

print(randdict["a1"][ROOM] + "\n" + randdict["a1"][ROOM_DESC] + "\n" + randdict["a1"][ROOM_THIS])

Answer 3

ROOM，ROOM_DESC，ROOM_THIS，ROOM_THAT和ROOM_EXM均为“”。这将导致字典被覆盖，并且因为最后一个条目是要打印的房间exm（因为它没有被覆盖）。如果将房间变量切换为唯一变量，则应该可以正常工作

Answer 4

这里的问题是所有变量ROOM_ *都是相同的空字符串。因此，仅使用最后一个键/值ROOM_EXM：“ room exm”来创建字典。

您可以通过打印字典来进行确认。

您应该为变量ROOM_ *分配一些字符串。甚至像这样：

ROOM = "ROOM"
ROOM_DESC = "ROOM_DESC"
ROOM_THIS = "ROOM_THIS"
ROOM_THAT = "ROOM_THAT"
ROOM_EXM = "ROOM_EXM"

从嵌套字典中打印出一个值

4 个答案: