diff --git a/main.py b/main.py
index 35d4938..f987f73 100644
--- a/main.py
+++ b/main.py
@@ -106,7 +106,7 @@ with open(input_file, 'rb') as f:
 ################## 文件读入 End ##################
 
 
-# 十六进制转十进制
+# unpack
 def byteSize(begin, length):
     size = 0
     for i in range(length):
@@ -114,7 +114,7 @@ def byteSize(begin, length):
     return size
 
 
-# 十进制转十六进制
+# pack
 def sizeByte(size, length):
     b = []
     while (size):
@@ -453,4 +453,5 @@ with open(output_file, 'wb') as f:
     for _ in tqdm(range(len(newimgBytes)), "写出图片中"):
         pass
 
+sys.exit(0)
 ################## 写出文件 End ##################