Readme:

　　# 手動輸入選擇，跳到下一級

　　# ‘b‘：返回， ‘q‘：退出

流程圖：

代碼：

 1 #!/usr/bin/env python
 2 # coding:utf8
 3 
 4 import sys
 5 
 6 cn = {
 7     ‘廣西‘:{
 8         ‘梧州‘: [‘蒙山縣‘, ‘蒼梧縣‘],
 9         ‘河池‘: [‘巴馬‘],
10         ‘靖西‘: [‘舊州‘, ‘鵝泉風景區‘]
11     },
12     ‘雲南‘:{
13         ‘大理‘: [‘賓川縣‘, ‘洱源縣‘],
14         ‘普洱
 
‘: [‘思茅區‘]
15     }
16 }
17 
18 meg = "(‘b‘:返回, ‘q‘:退出)"
19 
20 while True:
21     # 顯示省份列表
22     for p in cn.keys():
23         print(p)
24     print(meg)
25     A = input("choice:")
26     if len(A) == 0: continue
27     if A == ‘b‘: break
28     if A == ‘q‘: sys.exit(1)
29 
30     while True:
31         #
 
 顯示城市列表
32         for city in cn.get(A).keys():
33             print(city)
34         print(meg)
35         B = input("choice:")
36         if len(B) == 0: continue
37         if B == ‘b‘: break
38         if B == ‘q‘: sys.exit(1)
39 
40         while True:
41             # 顯示縣、區列表
42             for
 
 county in cn.get(A).get(B):
43                 print(county)
44             print(meg)
45             C = input("choice:")
46             if len(C) == 0: continue
47             if C == ‘b‘: break
48             if C == ‘q‘: sys.exit(1)

Part1 - 三級菜單