IssueNo:#I58SUR:modify the zlib sample

Description:modify the zlib sample
Sig:SIG_ApplicaitonFramework
Feature or Bugfix:Bugfix
Binary Source:No
Signed-off-by: Nwanghang <408861745@qq.com>

zh-cn/application-dev/reference/apis/js-apis-zlib.md

@@ -63,7 +63,7 @@ var options = {
   strategy: zlib.CompressStrategy.COMPRESS_STRATEGY_DEFAULT_STRATEGY
 };
 
-zlib.zipFile(inFile , unzipDir, options).then((data) => {
+zlib.zipFile(inFile , outFile, options).then((data) => {
     console.log("zipFile result：" + data);
 }).catch((err)=>{
     console.log("catch((err)=>" + err);