1、函数对象优化多分支if的代码练熟
def login():
pass
def check_balance():
pass
def withdraw():
pass
def transfer():
pass
def check_flow():
pass
def logout():
pass
def register():
pass
func_dic = {
'0':('退出', logout),
'1':('登录',login),
'2':('查看余额',check_balance),
'3':('提现', withdraw),
'4':('转账', transfer),
'5':('查看流水', check_flow),
'6':('注册', register)
}
def run():
while True:
for i in func_dic:
print(i, func_dic[i][0])
choice = input('请输入功能编号：').strip()
if choice == '0':
break
elif not choice.isdigit():
print('请输入数字！')
continue
elif choice not in func_dic:
print('请输入正确的功能编号')
continue
else:
func_dic.get(choice)[1]()
if __name__ == '__main__':
run()
2、编写计数器功能，要求调用一次在原有的基础上加一
温馨提示：
I:需要用到的知识点：闭包函数+nonlocal
II:核心功能如下：
def counter():
x+=1
return x
要求最终效果类似
print(couter()) # 1
print(couter()) # 2
print(couter()) # 3
print(couter()) # 4
print(couter()) # 5
def func(x):
def counter():
nonlocal x
x += 1
return x
return counter
counter = func(0)
print(counter()) #1
print(counter()) #2
print(counter()) #3
print(counter()) #4
print(counter()) #5