How to use the values() function

How to use values() requires specific code examples

values() is a method of the dictionary (dict) object in Python, used to return all values ​​in the dictionary value. Its use is very simple, just add values() after the dictionary object. Below I will introduce the use of values() in detail through several specific code examples.

First, let us create a simple dictionary object to demonstrate the usage of values():

# 创建一个字典
student = {
    'name': 'Jack',
    'age': 20,
    'gender': 'male',
    'score': 95
}

Now, we can use the values() method to get all the values ​​in the dictionary:

# 使用values()方法获取字典中所有的值
values = student.values()

# 打印所有的值
print(values)

Run the above code, the output will be:

dict_values(['Jack', 20, 'male', 95])

In the above example, the values() method returns an object of type dict_values, which contains all the values ​​in the dictionary. If we need to use these values, we can obtain them by converting them to a list. An example is as follows:

# 转换为列表
value_list = list(student.values())

# 打印列表中的值
for value in value_list:
    print(value)

Run the above code, the output will be:

Jack
20
male
95

In the above example, we convert the dict_values ​​object into a list and print the values ​​one by one through a for loop.

In addition, we can also use the values() method to obtain the value corresponding to a specific key in the dictionary. The example is as follows:

# 获取特定键对应的值
age = student.values()['age']  # 注意：这里使用了键'age'

# 打印特定键对应的值
print(age)

Run the above code, the output will be:

20

In the above example, we used the values() method to obtain the value corresponding to the key 'age', and Its value is assigned to the variable age.

To sum up, the values() method can be used in Python to get all the values ​​in the dictionary. We can manipulate these values ​​by converting them to a list, or we can get the corresponding value by specifying a specific key. I hope the above example can help you better understand and use the values() method.

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