diff --git a/7.5/__pycache__/datas.cpython-312.pyc b/7.5/__pycache__/datas.cpython-312.pyc
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Binary files /dev/null and b/7.5/__pycache__/datas.cpython-312.pyc differ
diff --git a/7.5/datas.py b/7.5/datas.py
new file mode 100644
index 0000000000000000000000000000000000000000..3f71681e7a8e9fbeab83c7247c31c6b80525d837
--- /dev/null
+++ b/7.5/datas.py
@@ -0,0 +1,104 @@
+datas = [
+
+    {
+        "city" : "吕梁",
+        "area" : 100,
+        "rooms" : 2,
+        "school" : 1,
+        "style" : 1,
+        "price" : 7000
+    },
+    {
+        "city": "吕梁",
+        "area": 100,
+        "rooms": 3,
+        "school": 1,
+        "style": 1,
+        "price": 8000
+    },
+    {
+        "city": "吕梁",
+        "area": 100,
+        "rooms": 2,
+        "school": 2,
+        "style": 2,
+        "price": 5000
+    },
+    {
+        "city": "吕梁",
+        "area": 130,
+        "rooms": 3,
+        "school": 1,
+        "style": 1,
+        "price": 9000
+    },
+    {
+        "city": "吕梁",
+        "area": 120,
+        "rooms": 2,
+        "school": 1,
+        "style": 1,
+        "price": 8000
+    },
+    {
+        "city": "吕梁",
+        "area": 150,
+        "rooms": 3,
+        "school": 1,
+        "style": 1,
+        "price": 15000
+    },
+
+    {
+        "city": "太原",
+        "area": 100,
+        "rooms": 2,
+        "school": 1,
+        "style": 1,
+        "price": 8000
+    },
+    {
+        "city": "太原",
+        "area": 100,
+        "rooms": 3,
+        "school": 1,
+        "style": 1,
+        "price": 9000
+    },
+    {
+        "city": "太原",
+        "area": 100,
+        "rooms": 2,
+        "school": 2,
+        "style": 2,
+        "price": 6000
+    },
+    {
+        "city": "太原",
+        "area": 130,
+        "rooms": 3,
+        "school": 1,
+        "style": 1,
+        "price": 10000
+    },
+    {
+        "city": "太原",
+        "area": 120,
+        "rooms": 2,
+        "school": 2,
+        "style": 2,
+        "price": 75000
+    },
+    {
+        "city": "太原",
+        "area": 150,
+        "rooms": 3,
+        "school": 1,
+        "style": 1,
+        "price": 16000
+    },
+
+
+]
+
+
diff --git a/7.5/predict.py b/7.5/predict.py
new file mode 100644
index 0000000000000000000000000000000000000000..6faa7fd5b03f652e05a2d32e95d800ca5b989a26
--- /dev/null
+++ b/7.5/predict.py
@@ -0,0 +1,28 @@
+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"])
+    #房间数
+    single.append(item["rooms"])
+    #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([1,100,3,1,1])))
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