趣味Python-命令行的课程表

让用户输入周一到周五的课程名称，每天的课程依次输入，逗号隔开
程序输出课程表表格如下：

---------------------------------
周一  周二  周三  周四  周五
语文  数学  体育  英语  道德
数学  数学  语文  英语  体育
数学  数学  语文  英语  体育
语文  数学  体育  英语  道德
---------------------------------

用户可以查询某一天的第几节课。

实现

题目要求已实现，并且使用转为json格式存入本目录.cs文件。

#!/usr/bin/env python3
#-*- coding:utf-8 -*-
import json
from functools import reduce
#Class name data file's location and name
CS_FILE="./.cs"
#I know that using two-dimension is better than this way,but I just want to practice the function of 'zip'.
CLASS_SCHEDULE={}
CLASS_NAME=[[],[],[],[],[]]
WEEK_NAME=['Monday','Tuesday','Wednesday','Thursday','Friday']
#Integrate date
def init():global CLASS_SCHEDULE#'zip' function will match location of each elements of list to integrate a object whose type is dict.CLASS_SCHEDULE=dict(zip(WEEK_NAME,CLASS_NAME))
def mainView():print(f"{'CLASS SCHEDULE BY JASON':#^50s}")print(f"{'':#^50s}")print(f"{'1.PREVIEW 2.INPUT 3.MODIFY 4.QUERY 5.SAVE 6.EXIT':#^50s}")print(f"{'':#^50s}")print(f"{'':#^50s}")
#Fill space
#return row count.
def addSpace(className):maxRow=len(max(*className,key=len))for x in className:while len(x)<maxRow:x.append(f"{'':^10s}")return maxRow
def preview():i=0row=addSpace(CLASS_NAME)print(f"{'':-^50}")#Day Titleprint(reduce(lambda x,y:f"{x:^10s}"+f"{y:^10s}",WEEK_NAME))#Using two-dimension will be better than this way.while i<row:for k,v in CLASS_SCHEDULE.items():print(f"{v[i]:^10s}",end='')print()i+=1print(f"{'':-^50}")
def inputClass():while True:#Actully,using 'if else' is better than this way,because the dict's 'get' function or 'in' keyword isn't to raise exception in default way.try:i=1tempClassLS=[]dayName=input(f"[ROOT/INPUT]{'>':#>2s}Please input the day name of that you want to add class:")if dayName not in CLASS_SCHEDULE:raise Exception('error by Jason.')while True:tempClassName=input(f"[ROOT/INPUT]{'>':#>2s}Please input the lesson-{i}'s name :")tempClassLS.append(tempClassName)userIntention=input(f"[ROOT/INPUT]{'>':#>2s}Continue to add on {dayName}?[y/n|yes/no]:")#Up to now,I haven't found the 'equal' function as Java in python environment.if userIntention=="yes" or userIntention=="y":i+=1continueelse:break#Don't assign value to this element directly,because it will cause address different between 'CLASS_SCHEDULE' and 'CLASS_NAME'CLASS_SCHEDULE[dayName].clear()CLASS_SCHEDULE[dayName].extend(tempClassLS)userIntention=input(f"[ROOT/INPUT]{'>':#>2s}Continue to add in other days?[y/n|yes/no]:")                                              #Up to now,I haven't found the 'equal' function as Java in python environment.if userIntention=="yes" or userIntention=="y":                          continueelse:breakexcept:print("Please input again!Such as 'Monday,Tuesday...'")continuefinally:pass
#To return a object address for modify function will be better than this way which only used by one operation,but...I don't want to restructure it. I am a lazy boy,emm...
def query():params=input(f"[ROOT/QUERY]{'>':#>2s}Please input the specific date[DayName,LessonNumber]:").split(',')if params[0] in CLASS_SCHEDULE:if int(params[1]) <= len(CLASS_SCHEDULE[params[0]]):print(f"Class Name:{CLASS_SCHEDULE[params[0]][int(params[1])-1]}" if not CLASS_SCHEDULE[params[0]][int(params[1])-1].strip()=='' else "You don't have classes at this point-in-time.")else:print("You don't have classes at this point-in-time.")else:print("Please input again!Such as 'Monday,Tuesday...'")def modify():params=input(f"[ROOT/MODIFY]{'>':#>2s}Please input the specific date[DayName,LessonNumber]:").split(',')CLASS_SCHEDULE[params[0]][int(params[1])-1]=input(f"[ROOT/MODIFY]{'>':#>2s}Please input class name:")def main():mainView()readCS()init()while True:try:#'match' is new keyword in the environment of Python 3.10,if raise error,please upgrade your python environment or modify the syntax by yourself.match input(f"[ROOT]{'>':#>2s}Please input instruction:"):case '1':preview()case '2':inputClass()case '3':modify()case '4':query()case '5':saveCS()case '6':print("Good Bye!")quit()case _:print("Please input again!")except Exception as e:print("Input error! Please input it again.")#print("Error:",e)continuefinally:pass#--FILE OPERATION---
def saveCS():#The keyword 'with' is similar to Csharp's keyword 'using' which will always  close IO streem automatically.with open(CS_FILE,"w",encoding="utf-8") as f:#Serilization:Transform python object to json's format string directly,and write to file subsequently.json.dump(CLASS_NAME,f)print("Already saved!")
def readCS():#bind variable scopeglobal CLASS_NAMEtry:with open(CS_FILE,'r',encoding="utf-8") as f:#Return python object directly.CLASS_NAME=json.load(f)except:passfinally:pass
#--------
#init()
#addSpace(CLASS_NAME)
#print(CLASS_NAME)
#preview()
#CLASS_NAME[0].append('hhhh')
#print(CLASS_SCHEDULE)
#saveCS()
main()

输出

#############CLASS SCHEDULE BY JASON##############
##################################################
#1.PREVIEW 2.INPUT 3.MODIFY 4.QUERY 5.SAVE 6.EXIT#
##################################################
##################################################
[ROOT]#>Please input instruction:2
[ROOT/INPUT]#>Please input the day name of that you want to add class:Monday
[ROOT/INPUT]#>Please input the lesson-1's name :Chinese
[ROOT/INPUT]#>Continue to add on Monday?[y/n|yes/no]:y
[ROOT/INPUT]#>Please input the lesson-2's name :Math
[ROOT/INPUT]#>Continue to add on Monday?[y/n|yes/no]:n
[ROOT/INPUT]#>Continue to add in other days?[y/n|yes/no]:y
[ROOT/INPUT]#>Please input the day name of that you want to add class:Friday
[ROOT/INPUT]#>Please input the lesson-1's name :Society
[ROOT/INPUT]#>Continue to add on Friday?[y/n|yes/no]:y
[ROOT/INPUT]#>Please input the lesson-2's name :English
[ROOT/INPUT]#>Continue to add on Friday?[y/n|yes/no]:y
[ROOT/INPUT]#>Please input the lesson-3's name :PPP
[ROOT/INPUT]#>Continue to add on Friday?[y/n|yes/no]:n
[ROOT/INPUT]#>Continue to add in other days?[y/n|yes/no]:n
[ROOT]#>Please input instruction:1
--------------------------------------------------Monday   Tuesday  Wednesday  Thursday   FridayChinese                                 SocietyMath                                  EnglishPPP
--------------------------------------------------
[ROOT]#>Please input instruction:4
[ROOT/QUERY]#>Please input the specific date[DayName,LessonNumber]:Friday,1
Class Name:Society
[ROOT]#>Please input instruction:A
Please input again!
[ROOT]#>Please input instruction:5
Already saved!
[ROOT]#>Please input instruction:6
Good Bye!

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趣味Python-命令行的课程表

实现

输出

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