diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..1c2fda565b94d0f2b94cb65ba7cca866e7a25478
--- /dev/null
+++ b/.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/.idea/.name b/.idea/.name
new file mode 100644
index 0000000000000000000000000000000000000000..35c0710206399406045638d41b50e7148bc8f53f
--- /dev/null
+++ b/.idea/.name
@@ -0,0 +1 @@
+reddict.py
\ No newline at end of file
diff --git a/.idea/inspectionProfiles/profiles_settings.xml b/.idea/inspectionProfiles/profiles_settings.xml
new file mode 100644
index 0000000000000000000000000000000000000000..105ce2da2d6447d11dfe32bfb846c3d5b199fc99
--- /dev/null
+++ b/.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/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000000000000000000000000000000000000..09af6940195ff191e1663dabfc5c19a9bd053a18
--- /dev/null
+++ b/.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 (pythonProject)" />
+  </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/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000000000000000000000000000000000000..e1ceb69dd7559259952ac2b81af35d9d1e570a9d
--- /dev/null
+++ b/.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/.idea/pythonProject.iml b/.idea/pythonProject.iml
new file mode 100644
index 0000000000000000000000000000000000000000..f246f2cd2c66df9f5c2233531499bd2f5b5b472f
--- /dev/null
+++ b/.idea/pythonProject.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/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000000000000000000000000000000000000..d7d9566429f270a3609ee598c8d30e4b0bad3abd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+    <mapping directory="$PROJECT_DIR$/7.5-homework" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/7.5-homework b/7.5-homework
new file mode 160000
index 0000000000000000000000000000000000000000..dd39b0754176fd0f813eb20aa00421566e1f23fe
--- /dev/null
+++ b/7.5-homework
@@ -0,0 +1 @@
+Subproject commit dd39b0754176fd0f813eb20aa00421566e1f23fe
diff --git a/__pycache__/datas.cpython-312.pyc b/__pycache__/datas.cpython-312.pyc
new file mode 100644
index 0000000000000000000000000000000000000000..bf3e684343b76adf9cc0b44d12d0ba8cb2aced65
Binary files /dev/null and b/__pycache__/datas.cpython-312.pyc differ
diff --git a/datas.py b/datas.py
new file mode 100644
index 0000000000000000000000000000000000000000..cb957f712183768b255d7cdddc7fcee819fdc6b5
--- /dev/null
+++ b/datas.py
@@ -0,0 +1,64 @@
+
+
+data=[
+    {
+        "city":"吕梁",
+        "area":100,
+        "rooms":2,
+        "school":1,
+        "style":1,
+        "price":8000,
+    },
+{
+        "city":"吕梁",
+        "area":130,
+        "rooms":2,
+        "school":1,
+        "style":1,
+        "price":7800,
+    },
+{
+        "city":"吕梁",
+        "area":150,
+        "rooms":2,
+        "school":1,
+        "style":1,
+        "price":8200,
+    },
+
+
+{
+        "city":"太原",
+        "area":100,
+        "rooms":2,
+        "school":1,
+        "style":1,
+        "price":10000,
+    },
+{
+        "city":"太原",
+        "area":130,
+        "rooms":2,
+        "school":1,
+        "style":1,
+        "price":9800,
+    },
+{
+        "city":"太原",
+        "area":150,
+        "rooms":2,
+        "school":1,
+        "style":1,
+        "price":8500,
+    },
+]
+
+# 各     3000   10    1000     1300     1500
+#      城市     面积  房间数量  学区房     装修    各个元素的权重   a1 a2 a3 a4 a5
+#       总价即总分  ：  p
+#       各个元素*各个元素的权重之和即为分数
+#       城市： x1 例： 县=1 市=2
+#       面积： x2  按平方米计量
+#       房间数量：  x3 个数
+#       学区房 ：  bool   0/1
+#       装修：  bool 0/1   是否精装修
\ No newline at end of file
diff --git a/reddict.py b/reddict.py
new file mode 100644
index 0000000000000000000000000000000000000000..5c36ee0c8e7fa9c687c2afbf80bdd5fdee1c2424
--- /dev/null
+++ b/reddict.py
@@ -0,0 +1,47 @@
+
+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)
+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])))
+
+
+#a=np.array([[1,2,3],[1,2,3]])
+#b=np.array([1,2,3])
+#print(a.dot(b))  #点乘
+
+
+#print(a)
+#print(a.T)   #转置矩阵
+
+
+#print(np.linalg.pinv(a))   #矩阵求逆
+
+
+