Question

我有小问题。当我使用require 'rails_helper' RSpec.describe ScheduleTimeSlotsController, type: :controller do describe 'GET #get_available_schedules when for_date is today' do it 'returns http success' do for_date = Date.today available_schedules = ScheduleTimeSlot.where( doctor_id: params[:dr_id], date: params[:for_date].to_date, status: 'vacant', archive: false ).where( 'start_time >=?', Time.now.seconds_since_midnight ).reorder(:start_time) get 'get_available_schedules', for_date: for_date expect(response.body.available_schedules).to eq(available_schedules) end end describe 'GET #get_available_schedules when for_date is not today' do it 'returns http success' do for_date = Date.yesterday available_schedules = ScheduleTimeSlot.where( doctor_id: params[:dr_id], date: params[:for_date].to_date, status: 'vacant', archive: false ).reorder(:start_time) get 'get_available_schedules', for_date: for_date expect(response.body.available_schedules).to eq(available_schedules) end end end创建一个新函数时，我希望根据某个变量在函数末尾更改def。例如：

有可能做点什么吗？谢谢

Answer 1

我很确定其他人在这里错过了明显的解决方案。

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

Answer 2

您可以使用：

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

或

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

locals()["Happy_" + i]将从本地人处获取该功能，最终()将调用该功能。

Answer 3

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)()

Answer 4

感谢@ Daniel Roseman指出这一点。

Python的禅宗 - 简单比复杂更好。

请检查此代码。

功能Happy采用一个参数。所以不需要写两个函数。

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)

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

当我使用def函数时如何使用变量[Python]

4 个答案: