Create app.py

app.py

@@ -0,0 +1,50 @@
+在Streamlit中，你可以使用`st.slider`函数来创建滑条，它允许用户选择一个值。以下是一个修改后的例子：
+
+```python
+import streamlit as st
+
+# 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=0.05, value=0.03, step=0.01)
+low_penalty = st.slider('设定低价扣分值', min_value=0.00, max_value=0.05, 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)
+
+def score(price, base_price):
+    deviation_rate = (price - base_price) / base_price
+    if price == base_price:
+        return max_score
+    elif price > base_price:
+        return max(max_score - deviation_rate * 100 * high_penalty, 0)
+    else:
+        return max(max_score - abs(deviation_rate) * 100 * low_penalty, 0)
+
+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
+            A6_score = score(A6_price, base_price)
+            A0_score = score(A0_price, base_price)
+            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)
+            A0_score = score(A0_price, base_price)
+            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
+
+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]}')