本文實例為大家分享了Python三級菜單展示的具體代碼,供大家參考,具體內(nèi)容如下
作業(yè)需求:
(1)運行程序輸出第一級菜單
(2)選擇一級菜單某項,輸出二級菜單,同理輸出三級菜單
(3)讓用戶選擇是否要退出
(4)有返回上一級菜單的功能
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
data = { "天津" :{ "南開區(qū)" :{ "南開大學" :{ "歷史系" :{}, "文學系" :{}, "英語系" :{}, }, "科技大學" :{ "計算機系" :{}, "機器系" :{}, "軟件系" :{}, }, "理工大學" :{ "數(shù)學系" :{}, "化學系" :{}, "物理系" :{}, }, }, "武清區(qū)" :{ "武清大學" :{ "歷史系" :{}, "文學系" :{}, "英語系" :{}, }, "武清科技大學" :{ "計算機系" :{}, "機器系" :{}, "軟件系" :{}, }, "武清理工大學" :{ "數(shù)學系" :{}, "化學系" :{}, "物理系" :{}, }, }, "北辰區(qū)" :{ "北辰大學" :{ "歷史系" :{}, "文學系" :{}, "英語系" :{}, }, "北辰科技大學" :{ "計算機系" :{}, "機器系" :{}, "軟件系" :{}, }, "北辰理工大學" :{ "數(shù)學系" :{}, "化學系" :{}, "物理系" :{}, }, }, }, "河北" :{ "保定市" : { "保定大學" : { "歷史系" : {}, "文學系" : {}, "英語系" : {}, }, "保定科技大學" : { "計算機系" : {}, "機器系" : {}, "軟件系" : {}, }, "保定理工大學" : { "數(shù)學系" : {}, "化學系" : {}, "物理系" : {}, }, }, "秦皇島" : { "秦皇島大學" : { "歷史系" : {}, "文學系" : {}, "英語系" : {}, }, "秦皇島科技大學" : { "計算機系" : {}, "機器系" : {}, "軟件系" : {}, }, "秦皇島理工大學" : { "數(shù)學系" : {}, "化學系" : {}, "物理系" : {}, }, }, "石家莊" : { "石家莊大學" : { "歷史系" : {}, "文學系" : {}, "英語系" : {}, }, "石家莊科技大學" : { "計算機系" : {}, "機器系" : {}, "軟件系" : {}, }, "石家莊理工大學" : { "數(shù)學系" : {}, "化學系" : {}, "物理系" : {}, }, }, }, "河南" :{ "鄭州市" : { "鄭州大學" : { "歷史系" : {}, "文學系" : {}, "英語系" : {}, }, "鄭州科技大學" : { "計算機系" : {}, "機器系" : {}, "軟件系" : {}, }, "鄭州理工大學" : { "數(shù)學系" : {}, "化學系" : {}, "物理系" : {}, }, }, "南陽市" : { "南陽大學" : { "歷史系" : {}, "文學系" : {}, "英語系" : {}, }, "南陽科技大學" : { "計算機系" : {}, "機器系" : {}, "軟件系" : {}, }, "南陽理工大學" : { "數(shù)學系" : {}, "化學系" : {}, "物理系" : {}, }, }, "登封市" : { "登封大學" : { "歷史系" : {}, "文學系" : {}, "英語系" : {}, }, "登封科技大學" : { "計算機系" : {}, "機器系" : {}, "軟件系" : {}, }, "登封理工大學" : { "數(shù)學系" : {}, "化學系" : {}, "物理系" : {}, }, }, }, } #exit_flag = False while True : for i in data : print (i) choice = input ( "input:" ) if choice in data: while True : for i2 in data[choice]: print (i2) choice2 = input ( "input2:" ) if choice2 in data[choice]: while True : for i3 in data[choice][choice2]: print (i3) choice3 = input ( "input3:" ) if choice3 in data[choice][choice2]: for i4 in data[choice][choice2][choice3]: print (i4) choice4 = input ( "Press b to return to the previous level:" ) if choice4 = = "b" : pass elif choice4 = = "q" : exit () if choice3 = = "b" : break elif choice3 = = "q" : exit() if choice2 = = "b" : break elif choice2 = = "q" : exit() |
以上就是本文的全部內(nèi)容,希望對大家的學習有所幫助,也希望大家多多支持服務器之家。