# 方法二：通過循環(huán)語句來無限循環(huán)

# 定義查詢函數(shù)

def query(show):

if show:

print("----------查詢余額----------")

print(f"{name},您好！您的余額為{money}元")

# 定義存款函數(shù)

def save_money(num):

global money

print("-----------存款-----------")

print(f"{name},您好！您存款為{num}元成功")

money = money + num

query(False)

# 定義取款函數(shù)

def take_money(num):

global money

print("-----------取款-----------")

if num <= money:

money = money - num

print(f"{name},您好！您取款{num}元成功")

query(False)

else:

print(f"{name},您好！您的余額為{money}元,取款失敗")

# 定義主菜單函數(shù)

def menu():

print("-------------------主菜單-------------------")

print(f"{name},您好！歡迎來到XX銀行，請選擇您要辦理的業(yè)務")

print("查詢余額\t[輸入1]")

print("存款\t\t[輸入2]")

print("取款\t\t[輸入3]")

print("退出系統(tǒng)\t[輸入4]")

return input("")

# 設(shè)置無限循環(huán)

while True:

i = menu()

if i == "1":

query(True)

elif i == "2":

num = int(input("你想存多少錢："))

save_money(num)

elif i == "3":

num = int(input("你取存多少錢："))

take_money(num)

elif i == "4":

break

else:

print("請輸入正確的數(shù)字")