摘要：实验任务1 ''' 银行账户 数据：持卡人姓名、账号、当前余额 操作：提款、取款、打印账户信息 ''' class Account: '''一个模拟银行账户的简单类''' def __init__(self, name, account_number, initial_amount):#构造新账户 阅读全文

摘要：with open('data1_1.txt', 'r', encoding = 'utf-8') as f: n = 0 for line in f: if line.strip('\n') == '': continue n += 1 print(f'共{n}行') with open('dat 阅读全文