diff --git a/pythonProject/.idea/.gitignore b/pythonProject/.idea/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..13566b81b018ad684f3a35fee301741b2734c8f4
--- /dev/null
+++ b/pythonProject/.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/pythonProject/.idea/inspectionProfiles/profiles_settings.xml b/pythonProject/.idea/inspectionProfiles/profiles_settings.xml
new file mode 100644
index 0000000000000000000000000000000000000000..105ce2da2d6447d11dfe32bfb846c3d5b199fc99
--- /dev/null
+++ b/pythonProject/.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/pythonProject/.idea/misc.xml b/pythonProject/.idea/misc.xml
new file mode 100644
index 0000000000000000000000000000000000000000..bf1e1e8cc4709b430a78fb3c925b3c3757924b0e
--- /dev/null
+++ b/pythonProject/.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" />
+  </component>
+  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.12 (pythonProject)" project-jdk-type="Python SDK" />
+</project>
\ No newline at end of file
diff --git a/pythonProject/.idea/modules.xml b/pythonProject/.idea/modules.xml
new file mode 100644
index 0000000000000000000000000000000000000000..e15ec35fe054f3b2c7c21e3dcca866d6a79ca0ba
--- /dev/null
+++ b/pythonProject/.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/pythonProject.iml" filepath="$PROJECT_DIR$/.idea/pythonProject.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/pythonProject/.idea/pythonProject.iml b/pythonProject/.idea/pythonProject.iml
new file mode 100644
index 0000000000000000000000000000000000000000..b0ae12274afeb265e7bb04c573ba08abcb372381
--- /dev/null
+++ b/pythonProject/.idea/pythonProject.iml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="PYTHON_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/ve" />
+      <excludeFolder url="file://$MODULE_DIR$/venv" />
+    </content>
+    <orderEntry type="jdk" jdkName="Python 3.12 (pythonProject)" jdkType="Python SDK" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/pythonProject/7.4-homework b/pythonProject/7.4-homework
new file mode 160000
index 0000000000000000000000000000000000000000..4af7a6d3a47fc28456ed2c3f4427cb54d8391e72
--- /dev/null
+++ b/pythonProject/7.4-homework
@@ -0,0 +1 @@
+Subproject commit 4af7a6d3a47fc28456ed2c3f4427cb54d8391e72
diff --git a/pythonProject/7.5/__pycache__/datas.cpython-312.pyc b/pythonProject/7.5/__pycache__/datas.cpython-312.pyc
new file mode 100644
index 0000000000000000000000000000000000000000..671c1022f68df51136ffc727c4859a0a25d0179d
Binary files /dev/null and b/pythonProject/7.5/__pycache__/datas.cpython-312.pyc differ
diff --git a/pythonProject/7.5/datas.py b/pythonProject/7.5/datas.py
new file mode 100644
index 0000000000000000000000000000000000000000..a821bf2aae1bb4c8766d0197447ad2640f27b35c
--- /dev/null
+++ b/pythonProject/7.5/datas.py
@@ -0,0 +1,17 @@
+datas=[
+    {"city":"吕梁",
+     "area":100,
+     "rooms":2,
+     "school":1,
+     "style":1,
+     "price":8000
+     },
+    {"city": "吕梁",
+     "area": 100,
+     "rooms": 2,
+     "school": 2,
+     "style": 2,
+     "price": 8000
+      }
+
+]
diff --git a/pythonProject/7.5/predict.py b/pythonProject/7.5/predict.py
new file mode 100644
index 0000000000000000000000000000000000000000..18bb3250045fc2ab5f61cf258fe79550878cea80
--- /dev/null
+++ b/pythonProject/7.5/predict.py
@@ -0,0 +1,20 @@
+import numpy as np
+from datas import datas
+X=[]
+Y=[]
+cityMark={"吕梁":1,"太原":2}
+for item in datas:
+    single=[]
+    single.append(cityMark[item["city"]])
+    single.append(item["area"])
+    single.append(item["rooms"])
+    single.append(item["school"])
+    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([1,120,2,1,2])))
\ No newline at end of file