摘要：实验任务1 class Account: def __init__(self,name,account_number,initial_amount): self._name = name self._card_no = account_number self._balance = initial_a 阅读全文

摘要：实验任务6 with open('data6_1.txt','r',encoding = 'utf-8') as f: c = f.read().split('\n') cc = [str(n).split('\t') for n in c] cc.sort(key = lambda x: x[2] 阅读全文