本文实例讲述了Python3.6简单反射操作。分享给大家供大家参考，具体如下：#-*-coding:utf-8-*-#!
本文实例讲述了Python3.6简单反射操作。分享给大家供大家参考，具体如下：
# -*- coding:utf-8 -*-
#!python3
# -----------------------
# __Author : tyran
# __Date : 17-11-13
# -----------------------
class Base:
def __init__(self):
self.name = 'aaa'
self.age = 18
def show(self):
print(self.age)
# 通过getattr（）找到对象的成员
base = Base()
v = getattr(base, 'name')
print(v) # aaa
func1 = getattr(base, 'show')
func1() # 18
# 通过hasattr（）查找成员是否存在
print(hasattr(base, 'name')) # True
print(hasattr(base, 'name1')) # False
# 通过setattr（）给对象添加成员
setattr(base, 'k1', 'v1')
print(base.k1)
delattr(base, 'k1') # v1
# print(base.k1) 报错AttributeError: 'Base' object has no attribute 'k1'
# -------------------------------------------------------------------------
# Class也是一个对象
class ClassBase:
sex = 'male'
def __init__(self):
self.name = 'aaa'
self.age = 11
@staticmethod
def show():
print('I am static')
@classmethod
def c_method(cls):
print(cls.sex)
sex_value = getattr(ClassBase, 'sex')
print(sex_value)
s_func = getattr(ClassBase, 'show')
s_func()
c_func = getattr(ClassBase, 'c_method')
c_func()
# 这些都没问题
setattr(ClassBase, 'has_girlfriend', True) # 添加静态成员
print(ClassBase.has_girlfriend) # True
# ---------------同理，模块也是对象-------------
# 我新建了一个模块s1.py，我把内容复制下来
# class S1:
# def __init__(self):
# self.name = 'aaa'
# self.age = 22
#
# def show(self):
# print(self.name)
# print(self.age)
#
#
# def func1():
# print('page1')
#
#
# def func2():
# print('page2')
# 一个类，两函数
import s1
s1_class = getattr(s1, 'S1', None)
if s1_class is not None:
c1 = s1_class()
c1.show()
# aaa
# 22
getattr(s1, 'func1')() # page1
f2 = 'func2'
if hasattr(s1, f2):
getattr(s1, 'func2')() # page2
注释中说明的s1.py如下：
# -*- coding:utf-8 -*-
#!python3
class S1:
def __init__(self):
self.name = 'aaa'
self.age = 22
def show(self):
print(self.name)
print(self.age)
def func1():
print('page1')
def func2():
print('page2')
# 一个类，两函数
程序运行结果：
