银行取款
==========
#今天练习的小程序：
```
#!/usr/bin/env python
#-*- coding:utf-8 -*-
import time
tag=True
while tag:
name=input('please input your name: ')
pwd=input('please input your password: ')
if name == 'connor' and pwd == '123':
print('login successful')
while tag:
print("""
0 退出
1 取款
2 转账
3 查询
""")
choice=input('请输入您要执行的操作：') #choice='1'
if choice == '0':
tag=False
elif choice == '1':
money=int(input('请输入取款金额：'))
print('取款中...')
time.sleep(2)
print('您的取款金额为%s元,请确认并收好您的钱款'%money)
elif choice == '2':
num= int(input('请输入转账账号：'))
money = int(input('请输入转账金额：'))
print('转账...')
time.sleep(2)
print('您已经成功向账号%s转账%s元' % (num,money))
elif choice == '3':
print('查询')
else:
print('输入指令错误，请重新输入')
else:
print('username or password error')
