用python给自己做个练习系统刷题吧！

#免费源码在文末公众号哈# 

选择题

def xuanze():
    global flag2
    if flag2==1:
        def insert():
            num=var1.get()
            question=var2.get()
            choice=var3.get()
            answer=var4.get()
            with open('d:\\练习系统\\练习三3.1.pickle','rb') as file:
                lst1=pickle.load(file)
            with open('d:\\练习系统\\练习三3.2.pickle','rb') as file:
                lst2=pickle.load(file)
            with open('d:\\练习系统\\练习三3.3.pickle','rb') as file:
                lst3=pickle.load(file)
            with open('d:\\练习系统\\练习三3.4.pickle','rb') as file:
                lst4=pickle.load(file)
            if num not in lst1:
                lst