diff --git a/py_study/.idea/.gitignore b/py_study/.idea/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..1c2fda565b94d0f2b94cb65ba7cca866e7a25478
--- /dev/null
+++ b/py_study/.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/py_study/.idea/inspectionProfiles/profiles_settings.xml b/py_study/.idea/inspectionProfiles/profiles_settings.xml
new file mode 100644
index 0000000000000000000000000000000000000000..105ce2da2d6447d11dfe32bfb846c3d5b199fc99
--- /dev/null
+++ b/py_study/.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/py_study/.idea/misc.xml b/py_study/.idea/misc.xml
new file mode 100644
index 0000000000000000000000000000000000000000..f1bf6faf0a2b7cdd6d4f628a104b5bc582f0fc00
--- /dev/null
+++ b/py_study/.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" project-jdk-type="Python SDK" />
+</project>
\ No newline at end of file
diff --git a/py_study/.idea/modules.xml b/py_study/.idea/modules.xml
new file mode 100644
index 0000000000000000000000000000000000000000..64826d116fb71b91d991f33684f869511dbc931e
--- /dev/null
+++ b/py_study/.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/py_study.iml" filepath="$PROJECT_DIR$/.idea/py_study.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/py_study/.idea/py_study.iml b/py_study/.idea/py_study.iml
new file mode 100644
index 0000000000000000000000000000000000000000..d9e6024fc5bad71514b25a89333834e81d5cd8f4
--- /dev/null
+++ b/py_study/.idea/py_study.iml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="PYTHON_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/py_study/__pycache__/data.cpython-312.pyc b/py_study/__pycache__/data.cpython-312.pyc
new file mode 100644
index 0000000000000000000000000000000000000000..5965af636004a4cd6fa6db734c296db3f28f41e0
Binary files /dev/null and b/py_study/__pycache__/data.cpython-312.pyc differ
diff --git a/py_study/data.py b/py_study/data.py
new file mode 100644
index 0000000000000000000000000000000000000000..2b2ae5fc303d3fc864ab73cf1983a55ab579272f
--- /dev/null
+++ b/py_study/data.py
@@ -0,0 +1,81 @@
+data=[{
+    "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":120,
+    "rooms":3,
+    "school":2,
+    "style":1,
+    "price":8300,
+},
+{
+    "city":"吕梁",
+    "area":150,
+    "rooms":2,
+    "school":2,
+    "style":2,
+    "price":7600,
+},
+{
+    "city":"吕梁",
+    "area":140,
+    "rooms":3,
+    "school":2,
+    "style":2,
+    "price":7500,
+},
+{
+    "city":"太原",
+    "area":120,
+    "rooms":2,
+    "school":1,
+    "style":1,
+    "price":8500,
+},
+{
+    "city":"太原",
+    "area":100,
+    "rooms":2,
+    "school":1,
+    "style":1,
+    "price":8000,
+},
+{
+    "city":"太原",
+    "area":150,
+    "rooms":3,
+    "school":1,
+    "style":1,
+    "price":8900,
+},
+{
+    "city":"太原",
+    "area":130,
+    "rooms":3,
+    "school":2,
+    "style":2,
+    "price":8000,
+},
+{
+    "city":"太原",
+    "area":150,
+    "rooms":3,
+    "school":2,
+    "style":2,
+    "price":8300,
+},
+]
\ No newline at end of file
diff --git a/py_study/fangjia.py b/py_study/fangjia.py
new file mode 100644
index 0000000000000000000000000000000000000000..b781f5eb1f541d949858327f425372a4b897af85
--- /dev/null
+++ b/py_study/fangjia.py
@@ -0,0 +1,19 @@
+import numpy as np
+from data import data
+X=[]
+Y=[]
+cityMark={"吕梁":1,"太原":2}
+for i in data:
+    print(i)
+    single=[]
+    single.append(cityMark[i["city"]])
+    single.append(i["area"])
+    single.append(i["rooms"])
+    single.append(i["school"])
+    single.append(i["style"])
+    X.append(single)
+    Y.append(i["price"])
+    print(X)
+    print(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