diff --git a/yyy.py b/yyy.py
new file mode 100644
index 0000000..d79e9bf
--- /dev/null
+++ b/yyy.py
@@ -0,0 +1,25 @@
+import numpy as np
+
+image = np.array([
+    [100, 150, 200],
+    [80,  120, 180],
+    [60,  90,  140]
+], dtype=np.uint8)
+
+print("原图：")
+print(image)
+print("-" * 30)
+
+image_dark = (image.astype(np.int16) - 20).astype(np.uint8)
+print("操作1：变暗20后：")
+print(image_dark)
+print("-" * 30)
+
+image_crop = image_dark[0:2, 0:2]
+print("操作2：裁剪左上角2×2后：")
+print(image_crop)
+print("-" * 30)
+
+image_flip = np.fliplr(image_crop)
+print("操作3：水平翻转后：")
+print(image_flip)
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