在本教程中，我们将看到如何迭代Python中的字典。
我们可以在dict.keys()中用于密钥：迭代字典的键。

for key in dict.keys():
     print(key)

我们可以在dict.values()中使用值：迭代字典值。

for key in dict.values():
     print(key)

我们可以使用项目()方法来迭代字典的键值对。

for key,value in dict.items():
     print(key,":",value)

让我们在举例的帮助下了解。

dict1={1:"one",2:"two",3:"three"}
print("Dictionary:",dict1)
print("================")
print("Printing keys:")
print("================")
for key in dict1.keys():
    print(key)
print("================")
print("Printing values:")
print("================")
for value in dict1.values():
    print(value)
print("============================")
print("Printing key-value pairs:")
print("============================")
for key,value in dict1.items():
    print(key,":",value)

输出：

Dictionary: {1: 'one', 2: 'two', 3: 'three'}
================
Printing keys:
================
1
2
3
================
Printing values:
================
one
two
three
============================
Printing key-value pairs:
============================
1 : one
2 : two
3 : three