diff --git a/code/base/test_base.cpp b/code/base/test_base.cpp
index 99fc885..1204d09 100644
--- a/code/base/test_base.cpp
+++ b/code/base/test_base.cpp
@@ -1022,7 +1022,12 @@ public:
 		{
 			ret = helper_->io_control(IO_CTRL_CODE_SET_DPI, &dpi, &llen);
 		}
-		
+		//先默认设置1
+		float distortion = 1.0;
+		int setdistortion = *(int*)&distortion;
+
+		ret = helper_->io_control(IO_CTRL_CODE_SET_DISTORTION_CHECK_VAL, &setdistortion, &len);
+	
 		ret = helper_->io_control(IO_CTRL_CODE_SET_DISTORTION_IMAGE, &type, &len);
 		if (ret != SCANNER_ERR_OK)
 		{
@@ -1107,10 +1112,6 @@ public:
 		int setdistortion = *(int*)&distortion;
 		int getdistortion = 0;
 
-		//先默认设置1
-		int in = 1;
-		ret = helper_->io_control(IO_CTRL_CODE_SET_DISTORTION_CHECK_VAL, &in, &len);
-
 		ret = helper_->io_control(IO_CTRL_CODE_SET_DISTORTION_CHECK_VAL, &setdistortion, &len);
 		if (ret != SCANNER_ERR_OK)
 		{