diff --git a/soft1/.idea/.gitignore b/soft1/.idea/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..13566b81b018ad684f3a35fee301741b2734c8f4
--- /dev/null
+++ b/soft1/.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/soft1/.idea/inspectionProfiles/Project_Default.xml b/soft1/.idea/inspectionProfiles/Project_Default.xml
new file mode 100644
index 0000000000000000000000000000000000000000..d4a00d666e9ebe45bfd5a3169093edbb53551d1f
--- /dev/null
+++ b/soft1/.idea/inspectionProfiles/Project_Default.xml
@@ -0,0 +1,12 @@
+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="PyPep8Inspection" enabled="true" level="WEAK WARNING" enabled_by_default="true">
+      <option name="ignoredErrors">
+        <list>
+          <option value="E302" />
+        </list>
+      </option>
+    </inspection_tool>
+  </profile>
+</component>
\ No newline at end of file
diff --git a/soft1/.idea/inspectionProfiles/profiles_settings.xml b/soft1/.idea/inspectionProfiles/profiles_settings.xml
new file mode 100644
index 0000000000000000000000000000000000000000..105ce2da2d6447d11dfe32bfb846c3d5b199fc99
--- /dev/null
+++ b/soft1/.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/soft1/.idea/misc.xml b/soft1/.idea/misc.xml
new file mode 100644
index 0000000000000000000000000000000000000000..d871a124ebd746ab92e516fabc748763c68cd1c0
--- /dev/null
+++ b/soft1/.idea/misc.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Black">
+    <option name="sdkName" value="Python 3.11 (soft1)" />
+  </component>
+  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.11 (soft1)" project-jdk-type="Python SDK" />
+  <component name="PyPackaging">
+    <option name="earlyReleasesAsUpgrades" value="true" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/soft1/.idea/modules.xml b/soft1/.idea/modules.xml
new file mode 100644
index 0000000000000000000000000000000000000000..197647d9aceb84edac08b1c390da440ff152e855
--- /dev/null
+++ b/soft1/.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/soft1.iml" filepath="$PROJECT_DIR$/.idea/soft1.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/soft1/.idea/soft1.iml b/soft1/.idea/soft1.iml
new file mode 100644
index 0000000000000000000000000000000000000000..74d515a027de98657e9d3d5f0f1831882fd81374
--- /dev/null
+++ b/soft1/.idea/soft1.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/soft1/7.5/__pycache__/datas.cpython-311.pyc b/soft1/7.5/__pycache__/datas.cpython-311.pyc
new file mode 100644
index 0000000000000000000000000000000000000000..c96ae9e09e6e81171b0b1f279297d78e18cbe4cb
Binary files /dev/null and b/soft1/7.5/__pycache__/datas.cpython-311.pyc differ
diff --git a/soft1/7.5/datas.py b/soft1/7.5/datas.py
new file mode 100644
index 0000000000000000000000000000000000000000..03dca15f01bb5d1df0443377e1f5877258dd385d
--- /dev/null
+++ b/soft1/7.5/datas.py
@@ -0,0 +1,153 @@
+datas=[
+
+    # 模拟的吕梁第一类房子
+    {
+        "city": "吕梁",
+        "area": 100,
+        "rooms": 2,
+        "school": 1,
+        "style": 1,
+        "price": 8000,
+    },
+    {
+        "city": "吕梁",
+        "area": 100,
+        "rooms": 2,
+        "school": 1,
+        "style": 1,
+        "price": 7800,
+    },
+    {
+        "city": "吕梁",
+        "area": 100,
+        "rooms": 2,
+        "school": 1,
+        "style": 1,
+        "price": 8200,
+    },
+    # 模拟的吕梁第二类房子
+    {
+        "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": 1,
+        "style": 1,
+        "price": 8600,
+    },
+    # 模拟的吕梁第三类房子
+    {
+        "city": "吕梁",
+        "area": 130,
+        "rooms": 3,
+        "school": 2,
+        "style": 2,
+        "price": 6500,
+    },
+    {
+        "city": "吕梁",
+        "area": 135,
+        "rooms": 3,
+        "school": 2,
+        "style": 2,
+        "price": 6300,
+    },
+    {
+        "city": "吕梁",
+        "area": 140,
+        "rooms": 3,
+        "school": 2,
+        "style": 2,
+        "price": 5600,
+    },
+    # 模拟的太原第一类房子
+    {
+        "city": "太原",
+        "area": 100,
+        "rooms": 2,
+        "school": 1,
+        "style": 1,
+        "price": 10000,
+    },
+    {
+        "city": "太原",
+        "area": 100,
+        "rooms": 2,
+        "school": 1,
+        "style": 1,
+        "price": 9800,
+    },
+    {
+        "city": "太原",
+        "area": 100,
+        "rooms": 2,
+        "school": 1,
+        "style": 1,
+        "price": 9200,
+    },
+    # 模拟的太原第二类房子
+    {
+        "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": 1,
+        "style": 1,
+        "price": 10600,
+    },
+    # 模拟的太原第三类房子
+    {
+        "city": "太原",
+        "area": 130,
+        "rooms": 3,
+        "school": 2,
+        "style": 2,
+        "price": 8500,
+    },
+    {
+        "city": "太原",
+        "area": 135,
+        "rooms": 3,
+        "school": 2,
+        "style": 2,
+        "price": 8300,
+    },
+    {
+        "city": "太原",
+        "area": 140,
+        "rooms": 3,
+        "school": 2,
+        "style": 2,
+        "price": 8600,
+    },
+]
\ No newline at end of file
diff --git a/soft1/7.5/predict.py b/soft1/7.5/predict.py
new file mode 100644
index 0000000000000000000000000000000000000000..c2c56aab2c75fc1c0cafc031b9dd5386728cd25f
--- /dev/null
+++ b/soft1/7.5/predict.py
@@ -0,0 +1,25 @@
+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])))
\ No newline at end of file