diff --git a/ZPHP/Common/Terminal.php b/ZPHP/Common/Terminal.php
index a1d206b..b27d365 100644
--- a/ZPHP/Common/Terminal.php
+++ b/ZPHP/Common/Terminal.php
@@ -70,7 +70,7 @@ public static function clearScreen()
     public static function setStyle($c)
     {
         if (self::$enable_color) {
-            echo "\033[" . $c . 'm';
+            echo "\033[" , $c , 'm';
         }
     }
 
diff --git a/ZPHP/Socket/Callback/HttpServer.php b/ZPHP/Socket/Callback/HttpServer.php
index 9665075..e70f674 100644
--- a/ZPHP/Socket/Callback/HttpServer.php
+++ b/ZPHP/Socket/Callback/HttpServer.php
@@ -28,7 +28,7 @@ abstract public function onSend($fd, $data);
 
     public function onStart()
     {
-        echo 'server start, swoole version: ' . SWOOLE_VERSION . PHP_EOL;
+        echo 'server start, swoole version: ' , SWOOLE_VERSION , PHP_EOL;
         $config = ZConfig::getField('cache', 'locale');
         $this->cache = ZCache::getInstance($config['adapter'], $config);
     }
diff --git a/ZPHP/Socket/Callback/WSServer.php b/ZPHP/Socket/Callback/WSServer.php
index 21ec10e..88a37d9 100644
--- a/ZPHP/Socket/Callback/WSServer.php
+++ b/ZPHP/Socket/Callback/WSServer.php
@@ -552,7 +552,7 @@ public function close($fd, $code = self::CLOSE_NORMAL, $reason = '')
 
     public function log($msg)
     {
-        echo $msg."\n";
+        echo $msg,"\n";
     }
 }
 
diff --git a/ZPHP/View/Adapter/Json.php b/ZPHP/View/Adapter/Json.php
index 0b9f852..efb02f7 100644
--- a/ZPHP/View/Adapter/Json.php
+++ b/ZPHP/View/Adapter/Json.php
@@ -19,7 +19,7 @@ public function display()
             $data = \json_encode($this->model);
             if(isset($_GET['jsoncallback'])) {
                 Utils::header("Content-Type", 'application/x-javascript; charset=utf-8');
-                echo $_GET['jsoncallback'].'('.$data.')';
+                echo $_GET['jsoncallback'],'(',$data,')';
             } else {
                 Utils::header("Content-Type", "application/json; charset=utf-8");
                 echo $data;
diff --git a/bin/swoole_http_server.php b/bin/swoole_http_server.php
index 1ec8a33..250a74e 100644
--- a/bin/swoole_http_server.php
+++ b/bin/swoole_http_server.php
@@ -188,8 +188,8 @@ private function getStaticFile($file, $path = 'webroot')
     "config::"
 ]);
 if (empty($opt['path'])) {
-    echo "examples:  php swoole_http_server.php --path=/home/www/zphpdemo --config=default --ip=0.0.0.0 --port=9501 --worker=4 -d" . PHP_EOL;
-    echo "path is required" . PHP_EOL;
+    echo "examples:  php swoole_http_server.php --path=/home/www/zphpdemo --config=default --ip=0.0.0.0 --port=9501 --worker=4 -d" , PHP_EOL;
+    echo "path is required" , PHP_EOL;
     return;
 }
 
diff --git a/build.php b/build.php
index ae19e1d..a8f59df 100644
--- a/build.php
+++ b/build.php
@@ -1,10 +1,10 @@
 <?php
     require 'ZPHP/Common/Dir.php';
-    echo "pls enter app path:".PHP_EOL;
+    echo "pls enter app path:",PHP_EOL;
     $app_path = trim(fgets(STDIN));
 
     if(is_dir($app_path)) {
-        echo 'dir is exist'.PHP_EOL;
+        echo 'dir is exist',PHP_EOL;
         return;
     }
 
@@ -23,7 +23,7 @@
         );
         foreach($dirList as $realPath) {
             if(ZPHP\Common\Dir::make($app_path.DIRECTORY_SEPARATOR.$realPath)) {
-                echo $realPath."  done...".PHP_EOL;
+                echo $realPath,"  done...",PHP_EOL;
             }
         }
         $mainTxt = '<?php
@@ -32,7 +32,7 @@
 require \''.__DIR__.'\'. DIRECTORY_SEPARATOR . \'ZPHP\' . DIRECTORY_SEPARATOR . \'ZPHP.php\';
 ZPHP::run($rootPath);';
         file_put_contents($app_path.DIRECTORY_SEPARATOR.'webroot'.DIRECTORY_SEPARATOR.'main.php', $mainTxt);
-        echo "main.php done...".PHP_EOL;
+        echo "main.php done...",PHP_EOL;
 
         $ctrlTxt = '<?php
 namespace ctrl\main;
@@ -74,9 +74,9 @@ public function main()
 
 ';
 		file_put_contents($app_path.DIRECTORY_SEPARATOR.'apps'.DIRECTORY_SEPARATOR.'ctrl'.DIRECTORY_SEPARATOR.'main'.DIRECTORY_SEPARATOR.'main.php', $ctrlTxt);
-        echo "ctrl done...".PHP_EOL;
+        echo "ctrl done...",PHP_EOL;
 
-        echo "pls enter project_name:".PHP_EOL;
+        echo "pls enter project_name:",PHP_EOL;
     	$project_name = trim(fgets(STDIN));
 
        	$configTxt = '<?php
@@ -94,8 +94,8 @@ public function main()
     );
 ';
 		file_put_contents($app_path.DIRECTORY_SEPARATOR.'config'.DIRECTORY_SEPARATOR.'default'.DIRECTORY_SEPARATOR.'config.php', $configTxt);
-        echo "config done...".PHP_EOL;
-        echo "finish...".PHP_EOL;
+        echo "config done...",PHP_EOL;
+        echo "finish...",PHP_EOL;
     }