diff --git a/1.sh b/1.sh
new file mode 100644
index 0000000000..ce8ce24b9f
--- /dev/null
+++ b/1.sh
@@ -0,0 +1,4 @@
+str1="123"
+str1=$str1"456"
+echo $str1
+
diff --git a/android/sdk/src/main/java/com/taobao/weex/adapter/ClassLoaderAdapter.java b/android/sdk/src/main/java/com/taobao/weex/adapter/ClassLoaderAdapter.java
index 5e38d2efdd..7d6a85446e 100644
--- a/android/sdk/src/main/java/com/taobao/weex/adapter/ClassLoaderAdapter.java
+++ b/android/sdk/src/main/java/com/taobao/weex/adapter/ClassLoaderAdapter.java
@@ -52,4 +52,4 @@ public Class<? extends WXComponent> getComponentClass(String name, String classN
         }
     }
 
-}
+}
\ No newline at end of file
diff --git a/dangerfile-static-check.js b/dangerfile-static-check.js
index ad6b4da4ed..c0b5a3f871 100644
--- a/dangerfile-static-check.js
+++ b/dangerfile-static-check.js
@@ -83,13 +83,14 @@ hasCFile = check(type_c)
 hasAndroidFile = check(type_android)
 hasJsFile = check(type_js)
 
+var output_str = ""
 if(hasCFile){
-    console.log('hasIosFile');
+    output_str += 'hasCFile\n'
 }
 if(hasAndroidFile){
-    console.log('hasAndroidFile');
+    output_str += 'hasAndroidFile\n'
 }
 if(hasJsFile){
-    console.log('hasJsFile');
+    output_str += 'hasJsFile\n'
 }
-
+console.log(output_str)
\ No newline at end of file
diff --git a/ios/sdk/WeexSDK/Sources/Model/WXComponent_performance.h b/ios/sdk/WeexSDK/Sources/Model/WXComponent_performance.h
index 9f0056b849..bbc18cf4e1 100644
--- a/ios/sdk/WeexSDK/Sources/Model/WXComponent_performance.h
+++ b/ios/sdk/WeexSDK/Sources/Model/WXComponent_performance.h
@@ -24,4 +24,4 @@
 @property (nonatomic,assign) BOOL hasAdd;
 @property (nonatomic,assign) BOOL ignoreInteraction;
 
-@end
\ No newline at end of file
+@end