From 222889bf5182c0564dab1674962a38c2f3847216 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=8E=E9=93=AD=E6=98=95?= <715557344@qq.com>
Date: Sat, 22 Jun 2019 18:06:22 +0800
Subject: [PATCH] Upgrade pool

---
 zh/pool.md | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/zh/pool.md b/zh/pool.md
index 2b4bfe12d..b004c8e93 100644
--- a/zh/pool.md
+++ b/zh/pool.md
@@ -39,6 +39,8 @@ class MyConnectionPool extends Pool
 这里框架提供了一个非常简单的连接池实现。
 
 ```php
+<?php
+
 use Hyperf\Pool\SimplePool\PoolFactory;
 use Swoole\Coroutine\Http\Client;
 
@@ -46,9 +48,16 @@ $factory = $container->get(PoolFactory::class);
 
 $pool = $factory->get('your pool name', function () use ($host, $port, $ssl) {
     return new Client($host, $port, $ssl);
-}, $this->option);
+}, [
+    'max_connections' => 50
+]);
 
 $connection = $pool->get();
 
 $client = $connection->getConnection(); // 即上述 Client.
+
+// Do somethind.
+
+$connection->release();
+
 ```
\ No newline at end of file