在 python 字典中，如何顯示字典條目的鍵和值的內容？

Question

city = {"New York": 2, "Minnespolis": 2, 'thing ' : 3}
print(city)
for key in city:
    print(city)

Answer 1

下面我為您提供兩種選擇。 這個可迭代對象也稱為字典而不是目錄，盡管這可能是一個錯字，但我想指出這一點。

選項1 您可以使用dict.items dict.items()

city = {"New York": 2, "Minnespolis": 2, 'thing ' : 3}
for k,v in city.items():
    print(f'key: {k}')
    print(f'value: {v}')

---

選項二use dict[key]

city = {"New York": 2, "Minnespolis": 2, 'thing ' : 3}
for k in city:
    print(f'key: {k}')
    print(f'value: {city[k]}')

---

output

key: New York
value: 2
key: Minnespolis
value: 2
key: thing 
value: 3

Answer 2

您的意思是通過鍵訪問值嗎？

city = {"New York": 2, "Minnespolis": 2, 'thing ' : 3}
print(city)
for key in city:
    print(city[key])