9, the five-reflection module

If we need to call a function by judging a string in our code, we can use if, else to operate, if there are 100 functions, if there are 1000 functions.

At this time, with reflection, say it. The simple way to do this is to use a string to manipulate (find) a member in an object (module).

def login ():    print (' Cool login page ') def logout ():    print (' Cool Exit page ') def home ():    print (' Cool homepage ') def run ():    INP = input (' Please enter the URL to access ') if    hasattr (NOTE,INP): #判断note这个模块中有没有以inp变量内容为名字的函数, if you enter login, it is to determine if there is a login function        Func = GetAttr (NOTE,INP) #获取这函数        func ()     else:         print (' 404 ') if __name__ = = ' __main__ ':     run ()

Import the module as a string:

obj = __import__ ("Commons")   

　　

　　

　　

9, the five-reflection module