python基础-第七篇-7.3反射

inp = input(‘请输入你要导入的模块：‘)
mokuai = __import__(inp)  #import xml as mokuai
print(mokuai.__doc__)

import re
str_func = input(‘请输入你要执行re下的方法：‘)
tar_func = getattr(re,str_func)
print(tar_func) #打印找到函数的内存地址

import re
str_func = input(‘请输入你要执行re下的方法：‘)
tar_func = getattr(re,str_func,None)  #找到了就返回函数，没有找到就返回None，不设置None,没找到就报错
print(tar_func) #打印找到函数的内存地址

import re
ret1 = hasattr(re,‘match‘)
print(ret1)
ret2 = hasattr(re,‘fjfijajfojg‘)
print(ret2)

r = hasattr(commons,‘age‘)
print(r)  #False
setattr(commons,‘age‘,lambda a:a + 1)
r = getattr(commons,‘age‘)  #没报错
ret = r(1)
print(ret)

from lib import account
url = input(‘请输入url:‘)
inp = url.split(‘/‘)[-1]
if hasattr(account,inp):
    func = getattr(account,inp)
    func()
else:
    print(‘404‘)

url = input(‘请输入url：‘)
target_module,target_func = url.split(‘/‘)
m = __import__(‘lib.‘+target_module,fromlist=True)
if hasattr(m,target_func):
    tar_func = getattr(m,target_func)
    r = tar_func()
    print(r)
else:
    print(‘404‘)