diff --git a/yuv420p_gray.cpp b/yuv420p_gray.cpp
index a8eeb03..d44f0f6 100644
--- a/yuv420p_gray.cpp
+++ b/yuv420p_gray.cpp
@@ -6,6 +6,7 @@ typedef int BOOL;
 #define TRUE  1
 #define FALSE 0
 
+//将YUV420P像素数据去掉颜色（变成灰度图）
 BOOL yuv420p_gray(const char *file, int width, int height)
 {
     if (file == NULL) {
diff --git a/yuv420p_split.cpp b/yuv420p_split.cpp
index 7533f72..5171a59 100644
--- a/yuv420p_split.cpp
+++ b/yuv420p_split.cpp
@@ -6,6 +6,7 @@ typedef int BOOL;
 #define TRUE  1
 #define FALSE 0
 
+//分离YUV420P像素数据中的Y、U、V分量
 BOOL yuv420p_split(const char *file, int width, int height)
 {
     if (file == NULL) {
@@ -30,6 +31,7 @@ BOOL yuv420p_split(const char *file, int width, int height)
     
     free(data);
     fclose(fp);
+    fclose(fp0);
     fclose(fp1);
     fclose(fp2);
     fclose(fp3);
diff --git a/yuv422p_split.cpp b/yuv422p_split.cpp
index 11f174d..cc273c5 100644
--- a/yuv422p_split.cpp
+++ b/yuv422p_split.cpp
@@ -6,6 +6,7 @@ typedef int BOOL;
 #define TRUE  1
 #define FALSE 0
 
+//分离YUV422P像素数据中的Y、U、V分量（还有问题，图像显示不完整）
 BOOL yuv422p_split(const char *file, int width, int height)
 {
     if (file == NULL) {
@@ -30,6 +31,7 @@ BOOL yuv422p_split(const char *file, int width, int height)
     
     free(data);
     fclose(fp);
+    fclose(fp0);
     fclose(fp1);
     fclose(fp2);
     fclose(fp3);
diff --git a/yuv444p_split.cpp b/yuv444p_split.cpp
index 4ee0caa..6850dcd 100644
--- a/yuv444p_split.cpp
+++ b/yuv444p_split.cpp
@@ -6,6 +6,7 @@ typedef int BOOL;
 #define TRUE  1
 #define FALSE 0
 
+//## 分离YUV444P像素数据中的Y、U、V分量
 BOOL yuv444p_split(const char *file, int width, int height)
 {
     if (file == NULL) {
@@ -30,6 +31,7 @@ BOOL yuv444p_split(const char *file, int width, int height)
     
     free(data);
     fclose(fp);
+    fclose(fp0);
     fclose(fp1);
     fclose(fp2);
     fclose(fp3);