diff --git a/.gitignore b/.gitignore
index 45ec15f..1af171a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,4 @@
 # Built application files
-*.apk
 *.ap_
 
 # Files for the ART/Dalvik VM
diff --git a/README.md b/README.md
index feb1b2b..61525dd 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ Android倒计时器，支持开始倒计时、暂停倒计时、继续倒计时
 ## 快速开始
 ### Android Studio - 在build.gradle中引入
 ```java
-compile 'in.xiandan:count-down-timer:1.0.3'
+implementation 'in.xiandan:count-down-timer:1.0.3'
 ```
 
 ### 旧版请谨慎升级到1.0.3以上
diff --git a/example-1.0.3.apk b/example-1.0.3.apk
new file mode 100644
index 0000000..66b8a8a
Binary files /dev/null and b/example-1.0.3.apk differ