完善失败重试功能

Signed-off-by: Nlnlan <lanleinan3@huawei.com>

screenshot/rk_master/capturescreentest.py

@@ -140,14 +140,17 @@ if __name__ == "__main__":
         with open(os.path.join(args.save_path, 'shot_test.bat'), mode='a', encoding='utf-8') as cmd_file:
             cmd_file.write("\n\n::::::case {} --- {} test start \n".format(idx, single_app['app_name']))
         cmd_file.close()
-        if single_app['entry'] != "":
-            EnterCmd(call_app_cmd, 5)
-        MyPrint(single_app['all_actions'])
         testcnt = 2
         while testcnt:
             testok = 0
             if testcnt == 1:
                 MyPrint(">>>>>>>>>>>>>>>>>>>>>>>Try again:\n")
+                with open(os.path.join(args.save_path, 'shot_test.bat'), mode='a', encoding='utf-8') as cmd_file:
+                    cmd_file.write("\n::::::Last failed, Try again \n")
+                cmd_file.close()
+            if single_app['entry'] != "":
+                EnterCmd(call_app_cmd, 5)
+            MyPrint(single_app['all_actions'])
             for single_action in single_app['all_actions']:
                 #shot_cmd is stable, different to other cmd,so handle it specialy
                 if type(single_action[1]) == str and single_action[1] == 'shot_cmd':