Question

我有以下代码：

voorzieningen = {
    "NS-service- en verkooppunt": {"type:": "verkoop- en reisinformatie", "locatie": "spoor 11/12"},
    "Starbucks": {"type": "Winkels en restaurants", "locatie": "spoor 18/19"},
    "Smeulers": {"type": "Winkels en restaurants", "locatie": "spoor 5/6"},
    "Kaartautomaat": {"type": "Verkoop- en reisinformatie", "locatie": "spoor 1"},
    "Toilet": {"type": "Extra voorziening", "locatie": "spoor 4"}
    }


def voorzieningen_op_utrecht():
    for voorziening in voorzieningen:
        print(voorziening)


voorzieningen_op_utrecht()

我想得的是以下内容：

<First value> "is of the type " <second value> "and is located at" <third value>

例如：

星巴克是Winkels en餐厅的类型，位于spoor 18/19。

我希望它是一个for循环，以便打印所有值。

P.S。为荷兰人道歉，但这不应该让理解代码变得更加困难。

Answer 1

您可以执行类似

的操作

for key, value in voorzieningen.items():
    print('{} is of the type {} and is located at {}'.format(key, value['type'], value['locatie']))

示例输出

NS-service- en verkooppunt属于verkoop-en reisinformatie，位于spoor 11/12
  Kaartautomaat属于Verkoop-en reisinformatie，位于spoor 1
  Smeulers属于Winkels en餐厅，位于spoor 5/6
  星巴克是Winkels餐厅的类型，位于spoor 18/19
  厕所属于Extra voorziening类型，位于spoor 4

Answer 2

我愿意：

template = '{place} is of the type {data[type]} and is located at {data[locatie]}'
for place, data in voorzieningen.items():
    print(template.format(place=place, data=data))

这样可以在格式字符串中保留大量信息，从而更轻松地验证您是否做了正确的事情。但是，我得到了输出：

Starbucks is of the type Winkels en restaurants and is located at spoor 18/19
Smeulers is of the type Winkels en restaurants and is located at spoor 5/6
Traceback (most recent call last):
  File "<pyshell#9>", line 2, in <module>
    print(template.format(place=place, data=data))
KeyError: 'type'

因为其中一个密钥有'type:'而非'type';注意未经过清理的输入数据！

奖金事实

从Python 3.6开始，您将能够使用literal string interpolation更加整洁地执行此操作，可行的方式如下：

for place, data in voorzieningen.items():
    print(f'{place} is of the type {data[type]} and is located at {data[locatie]}')

Answer 3

for key in voorzieningen:
  print("%s is of type %s and is located at %s" % (key, voorzieningen[key]['type'], voorzieningen[key]['location']))

Answer 4

for k, v in voorzieningen.items():
    print('{} is of the type {} and is located at {}'.format(k, v['type'], v['locatie']))

Python：如何打印单个字典值？

4 个答案:

奖金事实