diff --git a/AI/Manim/L4Tute4.py b/AI/Manim/L4Tute4.py
new file mode 100644
index 00000000..7423b6db
--- /dev/null
+++ b/AI/Manim/L4Tute4.py
@@ -0,0 +1,82 @@
+import manim
+from manim import *
+from manim import ValueTracker  # 需要显式导入ValueTracker
+
+
+class CircleAnimation(Scene):
+    def construct(self):
+        # 初始化半径跟踪器
+        r = ValueTracker(0.5)
+
+        # 修正1：使用Circle类（首字母大写）
+        circle = always_redraw(lambda: Circle(
+            radius=r.get_value(),
+            stroke_color=YELLOW,
+            stroke_width=5
+        ))
+
+        # 修正2：补全Line的闭合括号
+        line_radius = always_redraw(lambda: Line(
+            start=circle.get_center(),
+            end=circle.get_bottom(),
+            stroke_color=RED_B,
+            stroke_width=10
+        ))
+
+        # 修正3：补全Line参数和闭合括号
+        line_circumference = always_redraw(lambda: Line(
+            start=ORIGIN, end=RIGHT  # 需要指定起点终点
+        ).set_length(2 * PI * r.get_value())  # 正确周长公式
+                                           .next_to(circle, DOWN, buff=0.2)
+                                           .set_stroke(color=YELLOW, width=5))
+
+        # 修正4：补全Polygon参数和颜色设置
+        triangle = always_redraw(lambda: Polygon(
+            circle.get_top(),
+            circle.get_left(),
+            circle.get_right(),
+            fill_color=GREEN_C,
+            fill_opacity=0.5  # 添加填充透明度
+        ))
+
+        # 修正5：正确拼写LaggedStart，补全参数括号
+        self.play(LaggedStart(
+            Create(circle),
+            DrawBorderThenFill(line_radius),
+            DrawBorderThenFill(triangle),
+            run_time=4,
+            lag_ratio=0.75
+        ))
+
+        # 修正6：正确转换动画
+        self.play(ReplacementTransform(
+            circle.copy().clear_updaters(),  # 移除持续更新
+            line_circumference
+        ), run_time=2)
+
+        # 半径变化动画
+        self.play(r.animate.set_value(2), run_time=5)
+        self.wait()
+
+
+# 当直接运行本脚本时执行以下代码
+if __name__ == '__main__':
+    """
+    配置渲染参数并执行场景渲染
+    等效命令行命令：
+    manim -pql -o custom_output 当前文件.py BoxAnimation
+    """
+    # 配置字典说明：
+    config = {
+        "quality": "low_quality",  # 渲染质量等级（low_quality对应480p）
+        "preview": True,  # 渲染完成后自动打开播放器
+        "input_file": __file__,  # 指定输入文件为当前文件
+        "media_dir": "./custom_output"  # 自定义输出目录（默认在media/）
+    }
+
+    # 使用临时配置渲染场景（配置只在with块内有效）
+    with manim.tempconfig(config):
+        # 实例化场景类
+        scene = CircleAnimation()
+        # 执行渲染流程（包含文件生成和预览）
+        scene.render()
\ No newline at end of file
diff --git a/AI/Manim/custom_output/videos/L4Tute4/480p15/CircleAnimation.mp4 b/AI/Manim/custom_output/videos/L4Tute4/480p15/CircleAnimation.mp4
new file mode 100644
index 00000000..6335798e
Binary files /dev/null and b/AI/Manim/custom_output/videos/L4Tute4/480p15/CircleAnimation.mp4 differ
diff --git a/AI/Manim/custom_output/videos/L4Tute4/480p15/partial_movie_files/CircleAnimation/1185818338_2244466868_2358810818.mp4 b/AI/Manim/custom_output/videos/L4Tute4/480p15/partial_movie_files/CircleAnimation/1185818338_2244466868_2358810818.mp4
new file mode 100644
index 00000000..2d1ad8d2
Binary files /dev/null and b/AI/Manim/custom_output/videos/L4Tute4/480p15/partial_movie_files/CircleAnimation/1185818338_2244466868_2358810818.mp4 differ
diff --git a/AI/Manim/custom_output/videos/L4Tute4/480p15/partial_movie_files/CircleAnimation/624642324_2631639100_3067771568.mp4 b/AI/Manim/custom_output/videos/L4Tute4/480p15/partial_movie_files/CircleAnimation/624642324_2631639100_3067771568.mp4
new file mode 100644
index 00000000..87101e46
Binary files /dev/null and b/AI/Manim/custom_output/videos/L4Tute4/480p15/partial_movie_files/CircleAnimation/624642324_2631639100_3067771568.mp4 differ
diff --git a/AI/Manim/custom_output/videos/L4Tute4/480p15/partial_movie_files/CircleAnimation/624642324_3394056140_2805240298.mp4 b/AI/Manim/custom_output/videos/L4Tute4/480p15/partial_movie_files/CircleAnimation/624642324_3394056140_2805240298.mp4
new file mode 100644
index 00000000..8851bbd8
Binary files /dev/null and b/AI/Manim/custom_output/videos/L4Tute4/480p15/partial_movie_files/CircleAnimation/624642324_3394056140_2805240298.mp4 differ
diff --git a/AI/Manim/custom_output/videos/L4Tute4/480p15/partial_movie_files/CircleAnimation/624642324_667144672_3888841989.mp4 b/AI/Manim/custom_output/videos/L4Tute4/480p15/partial_movie_files/CircleAnimation/624642324_667144672_3888841989.mp4
new file mode 100644
index 00000000..03e25208
Binary files /dev/null and b/AI/Manim/custom_output/videos/L4Tute4/480p15/partial_movie_files/CircleAnimation/624642324_667144672_3888841989.mp4 differ
diff --git a/AI/Manim/custom_output/videos/L4Tute4/480p15/partial_movie_files/CircleAnimation/partial_movie_file_list.txt b/AI/Manim/custom_output/videos/L4Tute4/480p15/partial_movie_files/CircleAnimation/partial_movie_file_list.txt
new file mode 100644
index 00000000..6e3fb8d3
--- /dev/null
+++ b/AI/Manim/custom_output/videos/L4Tute4/480p15/partial_movie_files/CircleAnimation/partial_movie_file_list.txt
@@ -0,0 +1,5 @@
+# This file is used internally by FFMPEG.
+file 'file:D:/dsWork/QingLong/AI/Manim/custom_output/videos/L4Tute4/480p15/partial_movie_files/CircleAnimation/1185818338_2244466868_2358810818.mp4'
+file 'file:D:/dsWork/QingLong/AI/Manim/custom_output/videos/L4Tute4/480p15/partial_movie_files/CircleAnimation/624642324_3394056140_2805240298.mp4'
+file 'file:D:/dsWork/QingLong/AI/Manim/custom_output/videos/L4Tute4/480p15/partial_movie_files/CircleAnimation/624642324_2631639100_3067771568.mp4'
+file 'file:D:/dsWork/QingLong/AI/Manim/custom_output/videos/L4Tute4/480p15/partial_movie_files/CircleAnimation/624642324_667144672_3888841989.mp4'