增加 clean 任务

diff --git a/Makefile b/Makefile
index 24ba11e..4ad93d7 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -5,6 +5,9 @@ GRADLE=./gradlew
 build:
        $(GRADLE) build -x test
 
+clean:
+       $(GRADLE) clean
+
 test:
        $(GRADLE) test