diff --git a/cplusplus/level2_simple_inference/1_classification/resnet50_firstapp/src/main.cpp b/cplusplus/level2_simple_inference/1_classification/resnet50_firstapp/src/main.cpp
index 3cebe571fe4545e53313e18e022c89b96730ff52..138cf6c74bf52c0216f7c1f04f47039cf06977f2 100644
--- a/cplusplus/level2_simple_inference/1_classification/resnet50_firstapp/src/main.cpp
+++ b/cplusplus/level2_simple_inference/1_classification/resnet50_firstapp/src/main.cpp
@@ -32,7 +32,7 @@ void LoadModel(const char* modelPath)
 }
 
 //申请内存，使用C/C++标准库的函数将测试图片读入内存
-void ReadPictureTotHost(const char *picturePath)
+void ReadPictureToHost(const char *picturePath)
 {
 	string fileName = picturePath;
 	ifstream binFile(fileName, ifstream::binary);
@@ -53,7 +53,7 @@ void CopyDataFromHostToDevice()
 
 void LoadPicture(const char* picturePath)
 {
-	ReadPictureTotHost(picturePath);
+	ReadPictureToHost(picturePath);
 	CopyDataFromHostToDevice();
 }