diff --git a/7-5/__pycache__/datas.cpython-312.pyc b/7-5/__pycache__/datas.cpython-312.pyc
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diff --git a/7-5/datas.py b/7-5/datas.py
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+
+datas=[
+    #  模拟吕梁第一类房子
+    {
+        "city":"吕梁",
+        "area":100,
+        "room":2,
+        "school":1,
+        "style":1,
+        "price":8000,
+    },
+    {
+        "city":"吕梁",
+        "area":130,
+        "room":2,
+        "school":1,
+        "style":1,
+        "price":7000,
+    },
+    {
+        "city":"吕梁",
+        "area":135,
+        "room":2,
+        "school":1,
+        "style":1,
+        "price":6000,
+    },
+    #  模拟吕梁第二类房子
+    {
+        "city":"吕梁",
+        "area":100,
+        "room":2,
+        "school":1,
+        "style":2,
+        "price":8000,
+    },
+    {
+        "city":"吕梁",
+        "area":130,
+        "room":2,
+        "school":1,
+        "style":2,
+        "price":7000,
+    },
+    {
+        "city":"吕梁",
+        "area":135,
+        "room":2,
+        "school":1,
+        "style":2,
+        "price":6000,
+    },
+    #  模拟吕梁第三类房子
+    {
+        "city":"吕梁",
+        "area":100,
+        "room":3,
+        "school":2,
+        "style":2,
+        "price":8000,
+    },
+    {
+        "city":"吕梁",
+        "area":130,
+        "room":3,
+        "school":2,
+        "style":2,
+        "price":7000,
+    },
+    {
+        "city":"吕梁",
+        "area":135,
+        "room":3,
+        "school":1,
+        "style":2,
+        "price":6000,
+    },
+    #  模拟太原第一类房子
+    {
+        "city": "太原",
+        "area": 100,
+        "room": 2,
+        "school": 1,
+        "style": 1,
+        "price": 8000,
+    },
+    {
+        "city": "太原",
+        "area": 130,
+        "room": 2,
+        "school": 1,
+        "style": 1,
+        "price": 7000,
+    },
+    {
+        "city": "太原",
+        "area": 135,
+        "room": 2,
+        "school": 1,
+        "style": 1,
+        "price": 6000,
+    },
+    #  模拟太原第二类房子
+    {
+        "city": "太原",
+        "area": 100,
+        "room": 2,
+        "school": 1,
+        "style": 2,
+        "price": 8000,
+    },
+    {
+        "city": "太原",
+        "area": 130,
+        "room": 2,
+        "school": 1,
+        "style": 2,
+        "price": 7000,
+    },
+    {
+        "city": "太原",
+        "area": 135,
+        "room": 2,
+        "school": 1,
+        "style": 2,
+        "price": 6000,
+    },
+    #  模拟太原第三类房子
+    {
+        "city": "太原",
+        "area": 100,
+        "room": 3,
+        "school": 2,
+        "style": 2,
+        "price": 8200,
+    },
+    {
+        "city": "太原",
+        "area": 130,
+        "room": 3,
+        "school": 2,
+        "style": 2,
+        "price": 8300,
+    },
+    {
+        "city": "太原",
+        "area": 135,
+        "room": 3,
+        "school": 1,
+        "style": 2,
+        "price": 8600,
+    },
+
+    # 城市 x1   房屋面积 x2    房间数量 x3    学区房 x4    装修  x5
+
+]
diff --git a/7-5/predict.py b/7-5/predict.py
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index 0000000000000000000000000000000000000000..e0cd6eeae928a6726b8d108dc97ebac17c34d07a
--- /dev/null
+++ b/7-5/predict.py
@@ -0,0 +1,39 @@
+import numpy as np
+from datas import datas
+X=[]
+Y=[]
+cityMark={"吕梁":1,"太原":2}
+for item in datas:
+    single=[]
+    # 城市
+    single.append(cityMark[item["city"]])
+    # 面积
+    single.append(item["area"])
+    # 学区房
+    single.append(item["school"])
+    # 装修
+    single.append(item["style"])
+
+X.append(single)
+Y.append(item["price"])
+
+X=np.array(X)
+Y=np.array(Y)
+
+theta=np.linalg.pinv(X.T.dot(X)).dot(X.T).dot(Y)
+
+print(theta.dot(np.array([1,100,2,1])))
+
+# 点乘
+# a=np.array([[1,2,3],[1,2,3],[1,2,3]])
+# b=np.array([1,2,3])
+# print(a.dot(b))
+# 转置
+# print(a)
+# print(a.T)
+#
+# 奇异矩阵 逆
+# a=np.array([[3,2,3],[3,2,3],[3,2,3]])
+# b=np.array([1,2,3])
+# print(np.linalg.pinv(a))
+