当我使用def函数[Python]时，如何使用变量

我有个小问题。当我使用

def

创建一个新函数时，我希望根据某个变量在函数末尾更改

I

。例如：

import time

i = 2

def Happy_1():
    print("Happy Brithday to you")
    time.sleep(1)
    print("Happy Brithday to you")
    time.sleep(1)
    print("Happy Brithday dear Paul")
    time.sleep(1)
    print("Happy Brithday to you")
    time.sleep(1)
    print("END")

def Happy_2():
    print("Happy Brithday to you")
    time.sleep(1)
    print("Happy Brithday to you")
    time.sleep(1)
    print("Happy Brithday dear Peter")
    time.sleep(1)
    print("Happy Brithday to you")
    time.sleep(1)
    print("END")

Happy_("i or some variable")()

有可能做点什么吗？ 谢谢

您可以使用：

locals()["Happy_" + i]()

或

---

locals（）

import time

i = 2

def Happy_1():
    print("Happy Brithday to you")
    time.sleep(1)
    print("Happy Brithday to you")
    time.sleep(1)
    print("Happy Brithday dear Paul")
    time.sleep(1)
    print("Happy Brithday to you")
    time.sleep(1)
    print("END")

def Happy_2():
    print("Happy Brithday to you")
    time.sleep(1)
    print("Happy Brithday to you")
    time.sleep(1)
    print("Happy Brithday dear Peter")
    time.sleep(1)
    print("Happy Brithday to you")
    time.sleep(1)
    print("END")

def error():
    print('No such function!')

print locals().get('Happy_{}'.format(i), error)()

def happy(i):
    names = ['Paul', 'Peter'] 
    ...
    print('Happy birthday to {}'.format(names(i)))

感谢@Daniel Roseman指出这一点

Python之禅-简单比复杂好。

请检查这个代码


函数Happy接受一个参数。因此不需要编写两个函数


输出：

C:\Users\dinesh_pundkar\Desktop>python demo.Py
Happy Brithday to you
Happy Brithday to you
Happy Brithday dear Peter
Happy Brithday to you
END

为什么不把它作为函数的参数呢？因为我调用函数Happy_i，我不想打印。这只是个例子，但我解释错了，对不起。谢谢你的反应。是的，我想调用函数Happy_1，Happy_2。。。。快乐，取决于变量。非常感谢你
import time

i = 2

def Happy(i):

     if i == 1:
         print("Happy Brithday to you")
         time.sleep(1)
         print("Happy Brithday to you")
         time.sleep(1)
         print("Happy Brithday dear Paul")
         time.sleep(1)
         print("Happy Brithday to you")
         time.sleep(1)
         print("END")
     elif i == 2:
         print("Happy Brithday to you")
         time.sleep(1)
         print("Happy Brithday to you")
         time.sleep(1)
         print("Happy Brithday dear Peter")
         time.sleep(1)
         print("Happy Brithday to you")
         time.sleep(1)
         print("END")

Happy(i)

C:\Users\dinesh_pundkar\Desktop>python demo.Py
Happy Brithday to you
Happy Brithday to you
Happy Brithday dear Peter
Happy Brithday to you
END