三级菜单

标签：not   lag   while   地产   选择   break   input   data   奔驰   

exit_flag = False
while not exit_flag:
for i in data:
print(i)
choice = input("请选择输入1>>:")
if choice in data:
while not exit_flag:
for i2 in data[choice]:
print("\t",i2)
choice2 = input("请选择输入2>>:")
if choice2 in data[choice]:
while not exit_flag:
for i3 in data[choice][choice2]:
print("\t\t",i3)
choice3 = input("请选择输入3>>:")
if choice3 in data[choice][choice2]:
for i4 in data[choice][choice2][choice3]:
print("\t\t",i4)
choice4 = input("最后一层目录，请按b返回>>:")
if choice4 == "b":
pass
elif choice4 == "q":
exit_flag = True
if choice3 == "b":
break
elif choice3 == "q":
exit_flag = True
if choice2 == "b":
break
elif choice2 == "q":
exit_flag == True

三级菜单

标签：not   lag   while   地产   选择   break   input   data   奔驰   

原文地址：http://blog.51cto.com/13707996/2308137