diff --git a/7.5/.idea/.gitignore b/7.5/.idea/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..13566b81b018ad684f3a35fee301741b2734c8f4
--- /dev/null
+++ b/7.5/.idea/.gitignore
@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
diff --git a/7.5/.idea/7.5.iml b/7.5/.idea/7.5.iml
new file mode 100644
index 0000000000000000000000000000000000000000..2c80e1269497d12e018fd6afa29982e56b0fb70d
--- /dev/null
+++ b/7.5/.idea/7.5.iml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="PYTHON_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/.venv" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/7.5/.idea/inspectionProfiles/profiles_settings.xml b/7.5/.idea/inspectionProfiles/profiles_settings.xml
new file mode 100644
index 0000000000000000000000000000000000000000..105ce2da2d6447d11dfe32bfb846c3d5b199fc99
--- /dev/null
+++ b/7.5/.idea/inspectionProfiles/profiles_settings.xml
@@ -0,0 +1,6 @@
+<component name="InspectionProjectProfileManager">
+  <settings>
+    <option name="USE_PROJECT_PROFILE" value="false" />
+    <version value="1.0" />
+  </settings>
+</component>
\ No newline at end of file
diff --git a/7.5/.idea/misc.xml b/7.5/.idea/misc.xml
new file mode 100644
index 0000000000000000000000000000000000000000..f25cb9ce14b007a4752e08370ac8375647eef5a0
--- /dev/null
+++ b/7.5/.idea/misc.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Black">
+    <option name="sdkName" value="Python 3.12 (7.5)" />
+  </component>
+  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.12 (7.5)" project-jdk-type="Python SDK" />
+</project>
\ No newline at end of file
diff --git a/7.5/.idea/modules.xml b/7.5/.idea/modules.xml
new file mode 100644
index 0000000000000000000000000000000000000000..6b331e2a1a59345e7f6d7b125256d45cb20c2af1
--- /dev/null
+++ b/7.5/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/7.5.iml" filepath="$PROJECT_DIR$/.idea/7.5.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/7.5/__pycache__/datas.cpython-312.pyc b/7.5/__pycache__/datas.cpython-312.pyc
new file mode 100644
index 0000000000000000000000000000000000000000..97a4d63c15181d751863e365705aa93f67911efc
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..e95e1301164d25458e81f39835c17a6c37682008
--- /dev/null
+++ b/7.5/datas.py
@@ -0,0 +1,87 @@
+# 经验就是来源于数据
+# 大数据 爬虫 后天
+# 模拟太原和吕梁的房价的数据
+#怎么模拟 城市 面积 户型 是不是学区房 装修的风格
+datas = [
+    {
+        "city":"吕梁",
+        "area":100,
+        "rooms":2,
+        "school":1,
+        "style":1,
+        "price":8000
+    },
+    {
+        "city":"吕梁",
+        "area":130,
+        "rooms":3,
+        "school":1,
+        "style":1,
+        "price":8500
+    },
+    {
+        "city":"吕梁",
+        "area":135,
+        "rooms":3,
+        "school":1,
+        "style":1,
+        "price":8300
+    },
+    {
+        "city":"吕梁",
+        "area":140,
+        "rooms":3,
+        "school":2,
+        "style":2,
+        "price":5600
+    },
+    {
+        "city":"吕梁",
+        "area":100,
+        "rooms":2,
+        "school":2,
+        "style":2,
+        "price":4000
+    },
+    {
+        "city":"太原",
+        "area":100,
+        "rooms":2,
+        "school":1,
+        "style":1,
+        "price":10000
+    },
+    {
+        "city":"太原",
+        "area":130,
+        "rooms":3,
+        "school":1,
+        "style":1,
+        "price":10500
+    },
+    {
+        "city":"太原",
+        "area":135,
+        "rooms":3,
+        "school":1,
+        "style":1,
+        "price":10300
+    },
+    {
+        "city":"太原",
+        "area":140,
+        "rooms":3,
+        "school":2,
+        "style":2,
+        "price":8600
+    },
+    {
+        "city":"太原",
+        "area":100,
+        "rooms":2,
+        "school":2,
+        "style":2,
+        "price":6500
+    }
+
+]
\ No newline at end of file
diff --git a/7.5/predict.py b/7.5/predict.py
new file mode 100644
index 0000000000000000000000000000000000000000..46192ab0e3d5705dbd6dcc7f70e3607c9f417e9e
--- /dev/null
+++ b/7.5/predict.py
@@ -0,0 +1,32 @@
+# #1.先安装一个科学计算的框架
+# import numpy as np
+# a=np.array([[3,2,3],[3,2,3],[3,2,3]])
+# b=np.array([1,2,3])
+# #奇异矩阵  点乘  转置  逆
+# print(a.T)
+# print(a.dot(b))
+# print(np.linalg.pinv(a))
+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([2,100,2,1,1])))
\ No newline at end of file