diff --git a/APP_Framework/Applications/app_test/test_rbtree/image-1.png b/APP_Framework/Applications/app_test/test_rbtree/image-1.png deleted file mode 100644 index 48ed6fb1a..000000000 Binary files a/APP_Framework/Applications/app_test/test_rbtree/image-1.png and /dev/null differ