Update app.py

app.py

@@ -1,13 +1,16 @@
-
 import streamlit as st
 
+# Layout
+st.set_page_config(page_title='报价计算器')
+
 # 设定参数
-k = st.slider('设定最低价', min_value=0, max_value=100, value=10)
-h = st.slider('设定最高价', min_value=0, max_value=100, value=76)
-max_score = st.slider('设定满分', min_value=0, max_value=10, value=2)
-high_penalty = st.slider('设定高价扣分值', min_value=0.00, max_value=0.08, value=0.03, step=0.01)
-low_penalty = st.slider('设定低价扣分值', min_value=0.00, max_value=0.08, value=0.02, step=0.01)
-step = st.slider('设定迭代步长', min_value=0.01, max_value=1.00, value=0.01, step=0.01)
+st.sidebar.header('参数设置')
+k = st.sidebar.slider('设定最低价', min_value=0, max_value=100, value=10)
+h = st.sidebar.slider('设定最高价', min_value=0, max_value=100, value=76)
+max_score = st.sidebar.slider('设定满分', min_value=0, max_value=10, value=2)
+high_penalty = st.sidebar.slider('设定高价扣分值', min_value=0.00, max_value=0.05, value=0.03, step=0.01)
+low_penalty = st.sidebar.slider('设定低价扣分值', min_value=0.00, max_value=0.05, value=0.02, step=0.01)
+step = st.sidebar.slider('设定迭代步长', min_value=0.01, max_value=1.00, value=0.01, step=0.01)
 
 def score(price, base_price):
     deviation_rate = (price - base_price) / base_price
@@ -22,7 +25,6 @@ def find_range():
     max_score_diff = max_score / 3  # 最大分数差距
     A0_range = [k, h]
     for A6_price in [k, (k+h)/2, h]:
-        # 找到使A0的得分不低于A6的得分的最大值的A0的报价
         temp_range = [0.0, 0.0]
         for A0_price in [k + x*step for x in range(int((h-k)/step) + 1)]:
             base_price = (h * 2 + k * 2 + A6_price + A0_price) / 6
@@ -31,7 +33,6 @@ def find_range():
             if A0_score >= A6_score - max_score_diff:
                 temp_range[0] = A0_price
                 break
-        # 找到使A0的得分不低于A6的得分的最小值的A0的报价
         for A0_price in [h - x*step for x in range(int((h-k)/step) + 1)]:
             base_price = (h * 2 + k * 2 + A6_price + A0_price) / 6
             A6_score = score(A6_price, base_price)
@@ -39,10 +40,10 @@ def find_range():
             if A0_score >= A6_score - max_score_diff:
                 temp_range[1] = A0_price
                 break
-        # 取交集更新A0_range
         A0_range = [max(A0_range[0], temp_range[0]), min(A0_range[1], temp_range[1])]
     return A0_range
 
+# Display
 st.title('A0报价范围计算')
 A0_range = find_range()
-st.write(f'A0的报价范围是 {A0_range[0]} 到 {A0_range[1]}')
+st.header(f'A0的报价范围是 {A0_range[0]:.2f} 到 {A0_range[1]:.2f}')