Revisioni di 使用 Streamlit 建立線上訂餐系統

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1 file changed, 164 insertions

restaurant_ordering_system.py(file creato)

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1	+	from datetime import date
2	+
3	+	import streamlit as st
4	+
5	+	# 定義 Customer 類別
6	+	class Customer:
7	+	def __init__(self, name, email, preferences):
8	+	self.name = name
9	+	self.email = email
10	+	self.preferences = preferences
11	+
12	+	# 定義 RestaurantMenu 類別
13	+	class RestaurantMenu:
14	+	def __init__(self, name, main_courses, add_ons):
15	+	self.name = name
16	+	self.main_courses = main_courses
17	+	self.add_ons = add_ons
18	+
19	+	def display_menu(self):
20	+	st.write(f"### {self.name} 菜單")
21	+	st.write("#### 主餐:")
22	+	for item, price in self.main_courses.items():
23	+	st.write(f"{item}: {price}元")
24	+	st.write("#### 加點品項:")
25	+	for item, price in self.add_ons.items():
26	+	st.write(f"{item}: {price}元")
27	+
28	+	# 定義幾個餐廳的菜單
29	+	menu1 = RestaurantMenu(
30	+	"餐廳A",
31	+	{
32	+	"雞肉便當": 70,
33	+	"豬肉便當": 75,
34	+	"魚排便當": 85,
35	+	},
36	+	{
37	+	"湯": 10,
38	+	"沙拉": 20,
39	+	"可樂": 15,
40	+	},
41	+	)
42	+
43	+	menu2 = RestaurantMenu(
44	+	"餐廳B",
45	+	{
46	+	"炸雞便當": 80,
47	+	"牛肉便當": 85,
48	+	"豬排便當": 75,
49	+	},
50	+	{
51	+	"白飯（半碗）": 5,
52	+	"白飯（1碗）": 10,
53	+	"滷蛋": 15,
54	+	"豆干": 5,
55	+	"香腸": 45,
56	+	"高麗菜": 35,
57	+	},
58	+	)
59	+
60	+	menu3 = RestaurantMenu(
61	+	"餐廳C",
62	+	{
63	+	"素食便當": 70,
64	+	"烤鴨便當": 95,
65	+	"咖哩雞便當": 85,
66	+	},
67	+	{
68	+	"湯": 10,
69	+	"水果": 20,
70	+	"汽水": 15,
71	+	},
72	+	)
73	+
74	+	# 預設的訂購人員
75	+	customers = {
76	+	"Alice": Customer("Alice", "alice@example.com", "無辣"),
77	+	"Bob": Customer("Bob", "bob@example.com", "少鹽"),
78	+	"Charlie": Customer("Charlie", "charlie@example.com", "多辣"),
79	+	}
80	+
81	+	# 餐廳選單
82	+	restaurants = {
83	+	"餐廳A": menu1,
84	+	"餐廳B": menu2,
85	+	"餐廳C": menu3,
86	+	}
87	+
88	+	# 使用 Streamlit 構建應用
89	+	def main():
90	+	st.title("訂餐系統")
91	+	st.write("選擇餐廳查看菜單並進行訂購:")
92	+
93	+	# 選擇訂購人員
94	+	st.sidebar.title("訂購人資訊")
95	+	customer_choice = st.sidebar.selectbox("選擇訂購人員", list(customers.keys()))
96	+	selected_customer = customers[customer_choice]
97	+
98	+	# 自動填入訂購人資訊
99	+	customer_name = st.sidebar.text_input(
100	+	"姓名", value=selected_customer.name, disabled=True
101	+	)
102	+	customer_email = st.sidebar.text_input(
103	+	"Email", value=selected_customer.email, disabled=True
104	+	)
105	+	customer_preferences = st.sidebar.text_input(
106	+	"喜好", value=selected_customer.preferences
107	+	)
108	+	order_date = st.sidebar.date_input("餐點日期", date.today())
109	+
110	+	# 選擇餐廳
111	+	restaurant_choice = st.selectbox("選擇餐廳", list(restaurants.keys()))
112	+	selected_menu = restaurants[restaurant_choice]
113	+
114	+	# 顯示菜單
115	+	selected_menu.display_menu()
116	+
117	+	# 選擇主餐和數量
118	+	st.write("\n### 選擇主餐和數量:")
119	+	main_courses_selected = {}
120	+	for item in selected_menu.main_courses.keys():
121	+	quantity = st.number_input(
122	+	f"{item} 數量", min_value=0, max_value=10, step=1, key=f"main_{item}"
123	+	)
124	+	if quantity > 0:
125	+	main_courses_selected[item] = quantity
126	+
127	+	# 選擇加點品項和數量
128	+	st.write("\n### 選擇加點品項和數量:")
129	+	add_ons_selected = {}
130	+	for item in selected_menu.add_ons.keys():
131	+	quantity = st.number_input(
132	+	f"{item} 數量", min_value=0, max_value=10, step=1, key=f"add_{item}"
133	+	)
134	+	if quantity > 0:
135	+	add_ons_selected[item] = quantity
136	+
137	+	# 計算總價
138	+	total_price = 0
139	+	for item, quantity in main_courses_selected.items():
140	+	total_price += selected_menu.main_courses[item] * quantity
141	+	for item, quantity in add_ons_selected.items():
142	+	total_price += selected_menu.add_ons[item] * quantity
143	+
144	+	# 顯示訂單和總價
145	+	if st.button("確認訂單"):
146	+	st.write("### 訂單詳情:")
147	+	st.write(f"姓名: {customer_name}")
148	+	st.write(f"Email: {customer_email}")
149	+	st.write(f"喜好: {customer_preferences}")
150	+	st.write(f"餐點日期: {order_date}")
151	+	st.write("#### 主餐:")
152	+	for item, quantity in main_courses_selected.items():
153	+	st.write(
154	+	f"{item} - {selected_menu.main_courses[item]}元 x {quantity} = {selected_menu.main_courses[item] * quantity}元"
155	+	)
156	+	st.write("#### 加點品項:")
157	+	for item, quantity in add_ons_selected.items():
158	+	st.write(
159	+	f"{item} - {selected_menu.add_ons[item]}元 x {quantity} = {selected_menu.add_ons[item] * quantity}元"
160	+	)
161	+	st.write(f"### 總價: {total_price}元")
162	+
163	+	if __name__ == "__main__":
164	+	main()

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