delattr()函數(shù)將一個(gè)對(duì)象作為參數(shù)，并從該對(duì)象中移除一個(gè)屬性。

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 **delattr(object, name)** #where name is the name of attribute 

delattr()參數(shù):

該函數(shù)將一個(gè)對(duì)象作為參數(shù)，要?jiǎng)h除的屬性可以作為可選參數(shù)傳遞。

參數(shù)	描述	必需/可選
一個(gè)對(duì)象	要從中刪除屬性的對(duì)象	需要
屬性	要移除的屬性的名稱	可選擇的

延遲()返回值

delattr()函數(shù)不返回任何內(nèi)容。它只從對(duì)象中移除屬性

Python 中delattr()方法的示例

示例 1:從對(duì)象中移除屬性

 class Student:
name = "Ram" age = 22
course = "Bachelors"
Student1 = Student()
delattr(Student, 'age') #Removing age attribute
print("Student's name is ",Student 1.name) 
print("Student's country is ",Student 1.country)
print("Student's age is ",Student 1.age) # Raises error since age is not found 

輸出:

Student's name is John 
Student's country is Norway
AttributeError: 'Student' object has no attribute 'age' 

示例delattr()是如何工作的？

 class Coordinate:
  x = 20
  y = -15
  z = 0

value1 = Coordinate() 

print('x = ',value1.x)
print('y = ',value1.y)
print('z = ',value1.z)

delattr(Coordinate, 'z')

print('--After deleting z attribute--')
print('x = ',value1.x)
print('y = ',value1.y)

# Raises Error
print('z = ',value1.z) 

輸出:

x =  20
y =  -15
z =  0
--After deleting z attribute--
x =  20
y =  -15
Traceback (most recent call last):
  File "python", line 19, in AttributeError: 'Coordinate' object has no attribute 'z' 

當(dāng)前名稱：創(chuàng)新互聯(lián)Python教程：Pythondelattr()
轉(zhuǎn)載來(lái)源：http://uogjgqi.cn/article/djgjjhg.html