diff --git a/.idea/Algorithm.iml b/.idea/Algorithm.iml
index e91ef14..ce6a017 100644
--- a/.idea/Algorithm.iml
+++ b/.idea/Algorithm.iml
@@ -2,9 +2,10 @@
 <module type="PYTHON_MODULE" version="4">
   <component name="NewModuleRootManager">
     <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/.venv" />
       <excludeFolder url="file://$MODULE_DIR$/venv" />
     </content>
-    <orderEntry type="jdk" jdkName="Python 3.10 (Algorithm)" jdkType="Python SDK" />
+    <orderEntry type="jdk" jdkName="Python 3.12 (Algorithm)" jdkType="Python SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
   </component>
 </module>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
index a1bbe46..2a8fcac 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,4 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.10 (Algorithm)" project-jdk-type="Python SDK" />
+  <component name="Black">
+    <option name="sdkName" value="Python 3.12 (Algorithm)" />
+  </component>
+  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.12 (Algorithm)" project-jdk-type="Python SDK" />
 </project>
\ No newline at end of file
diff --git a/learn_sort/__init__.py b/learn_sort/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/learn_sort/heap.py b/learn_sort/heap.py
new file mode 100644
index 0000000..ad415ff
--- /dev/null
+++ b/learn_sort/heap.py
@@ -0,0 +1,31 @@
+def heapify(nums, start, end):
+    parent = start
+    son = parent * 2 + 1
+    while son <= end:
+        if son + 1 <= end and nums[son] < nums[son + 1]:
+            son += 1
+        if nums[parent] > nums[son]:
+            return
+        else:
+            nums[parent], nums[son] = nums[son], nums[parent]
+            parent = son
+            son = parent * 2 + 1
+
+
+def heap_sort(nums):
+    n = len(nums)
+    for i in range(n // 2 - 1, -1, -1):
+        heapify(nums, i, n - 1)
+        print(nums)
+
+    for i in range(n - 1, 0, -1):
+        nums[0], nums[i] = nums[i], nums[0]
+        heapify(nums, 0, i - 1)
+        print(nums)
+
+
+if __name__ == '__main__':
+    # https://leetcode.cn/problems/sort-an-array/description/
+    _nums = [7, 10, 13, 15, 4, 20, 19, 8]
+    heap_sort(_nums)
+    print(_nums)