diff --git a/app.js b/app.js
index 55e948f7284005541af6894a60c53b95676288c4..24a36a96ae95db13f478e9b3b0adf8fa5f89964f 100644
--- a/app.js
+++ b/app.js
@@ -60,4 +60,4 @@ var server = http.createServer(function (request, response) {
 server.listen(PORT);
 console.log("Server runing at port: " + PORT + "."); 
 console.log("visit form : http://localhost:"+PORT+"/form/index.html");
-console.log("visit index : http://localhost:"+PORT+"/index/index.html");
\ No newline at end of file
+console.log("visit play : http://localhost:"+PORT+"/play/index.html");
\ No newline at end of file
diff --git a/bin/publish.js b/bin/publish.js
index c753bf3e08115dd266fad49a97977cce7cda116a..a30683ccb22f9e066cc55c5d3f3162a590612bbd 100644
--- a/bin/publish.js
+++ b/bin/publish.js
@@ -71,9 +71,9 @@ const runSpawn = async function (){
     fs.mkdirSync(path.resolve(__dirname,"../dist/form"));
   } 
   try {
-    await fsp.access(path.resolve(__dirname,"../dist/index"), fs.constants.F_OK);
+    await fsp.access(path.resolve(__dirname,"../dist/play"), fs.constants.F_OK);
   } catch (error) {
-    fs.mkdirSync(path.resolve(__dirname,"../dist/index"));
+    fs.mkdirSync(path.resolve(__dirname,"../dist/play"));
   } 
   try {
     await fsp.access(path.resolve(__dirname,"../dist/lib"), fs.constants.F_OK);
@@ -81,12 +81,12 @@ const runSpawn = async function (){
     fs.mkdirSync(path.resolve(__dirname,"../dist/lib"));
   } 
   await copy(path.resolve(__dirname,"../form"), path.resolve(__dirname,"../dist/form")); 
-  await copy(path.resolve(__dirname,"../index"), path.resolve(__dirname,"../dist/index")); 
+  await copy(path.resolve(__dirname,"../play"), path.resolve(__dirname,"../dist/play")); 
   await copy(path.resolve(__dirname,"../lib"), path.resolve(__dirname,"../dist/lib"));  
 
-  let str = fs.readFileSync(path.resolve(__dirname,"../dist/index/index.html"),{encoding: 'utf8'});
+  let str = fs.readFileSync(path.resolve(__dirname,"../dist/play/index.html"),{encoding: 'utf8'});
   str = str.replace('<base href="">','<base href="template-base-href">'); 
-  fs.writeFileSync(path.resolve(__dirname,"../dist/index/index.html"),str);
+  fs.writeFileSync(path.resolve(__dirname,"../dist/play/index.html"),str);
 
   await new Promise(function(resolve,reject){  
     let pkg = require("../package.json");  
diff --git a/index/index.css b/play/index.css
similarity index 100%
rename from index/index.css
rename to play/index.css
diff --git a/index/index.html b/play/index.html
similarity index 100%
rename from index/index.html
rename to play/index.html
diff --git a/index/index.js b/play/index.js
similarity index 100%
rename from index/index.js
rename to play/index.js