Home > Backend Development > Python Tutorial > Python third-level directory display method

Python third-level directory display method

高洛峰
Release: 2017-02-24 15:26:08
Original
1830 people have browsed it

Requirements:

1. Three-level menu

2. You can choose to enter each submenu in turn and select the serial number to enter the directory

3. Enter b to return to the upper-level directory, and q to exit the changed directory

Code implementation:

#!/bin/env python
#!--*--coding:utf-8 --*--
# ----*auth:freem*
import sys
#flag=True
#def flas():
#flag=False;
#定义字典包括,国家,州(省),市
dic={'中国':{'河北':('石家庄','邢台','衡水',),'北京':('昌平','海淀','朝阳',),'山西':('太原','大同','运程',)},'美国':{'纽约州':('纽约市','罗彻斯特','水牛城',),'加利福利亚州':('洛杉矶','好莱坞','阿罕布拉',),'宾夕法尼亚州':('费城','伯利恒','华盛顿',)},'澳大利亚':{'维多利亚州':('墨尔本','吉朗','巴里迪',),'西澳大利亚州':('马扎尔','柏斯','费里曼图',),'南澳大利亚州':('阿德莱德','内陆','巴罗莎'),}}
#print(dic['中国']['河北'])
dic_dir={1:"中国",2:"美国",3:"澳大利亚",} #定义国家跟序号的对应关系
dic_dirtt={1:("河北","北京","山西"),2:("纽约州","加利福利亚州","宾夕法尼亚州",),3:("维多利亚州","西澳大利亚州","南澳大利亚州",)} #省(州)对应关系
#dic_dir01={1:"中国",2:"美国",3:"澳大利亚",}
#dic_dir02={1:"中国",2:"美国",3:"澳大利亚",}
'''for i in range(1,dic.__len__()+1):
print(i,":",dic.pop())'''
#print(dic["中国"]["河北"][1])
#print(["河北"][1])
def loop():
while True:
for i in range(1,dic.__len__()+1): #遍历字典长度,生成序号
print(i,':',dic_dir[i])
dir01=input("please input num or q[quit]:",)#选择对应序号输入以及输入返回上级目录标识
if dir01 in ['1','2','3']:#确认输入序号是否在['1','2','3']中
for j in range(1,dic.__len__()+1):
if int(dir01)==j:
print(">>",j,':',dic_dir[j],"\n") #打印所序号所对应的国家
for i in range(1, dic[dic_dir[j]].__len__() + 1):
print(">>>>",i, ':',dic_dirtt[j][i-1]) #遍历输出所选序号国家对应的省/州
dir02 = input("please input num or b[back] or q[quit]:", )#输入上级所需国家对应的省的序号
if dir02 in ['1', '2', '3']:
for k in range(1, dic[dic_dir[j]].__len__() + 1):#遍历省所对应字典所对应的长度,生成序号
if int(dir02) == k:
print("*******",k,":",dic_dirtt[j][k-1],"\n")
for h in range(1, dic[dic_dir[j]][dic_dirtt[j][k-1]].__len__() + 1):
print("*******^_^>>>>",h, ':',dic[dic_dir[j]][dic_dirtt[j][k-1]][h-1])#打印最终选择的省所对应的城市
print("------------------------------------------------")
# print(k, ':',dic_dirtt[j][k])
elif dir02=='b':
continue; #跳出上一级循环
elif dir02=='q':
return #跳出整个循环
#return False;
else:
print("please insert correct str,strat with higher dir!")
#print(i, ':', dic[dic_dir[j]])
# print(dic[dic_dir[j]])
elif dir01=='q':
break; #退出
else:
print("please insert correct str!")
if __name__=="__main__":
loop()
Copy after login

Implementation effect:

1) Enter normally, enter the serial number 1 respectively, and display the subordinate directory of "China", then enter 1 to display the subordinate directory of "Hebei", as shown in the following figure:

Python third-level directory display method

2), directly enter [q] to exit the program, as shown in the figure below:

Python third-level directory display method

3), first level Enter the directory normally, enter [b] in the second-level directory, and return to the upper-level directory, as shown in the following figure:

Python third-level directory display method

4), enter the first-level directory normally, Enter [q] in the second-level directory to exit the entire program directly, as shown in the following figure:

Python third-level directory display method

Note: This program is only applicable to python3.0 or above , if python2.7, please modify it yourself;

The above is the implementation method of Python three-level directory display introduced by the editor. I hope it will be helpful to you. If you If you have any questions, please leave me a message and I will reply to you in time. I would also like to thank you all for your support of the PHP Chinese website!

For more articles related to Python three-level directory display methods, please pay attention to the PHP Chinese website!

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template