diff --git a/docs/_sidebar.md b/docs/_sidebar.md
index cfb58fa..2474ab7 100644
--- a/docs/_sidebar.md
+++ b/docs/_sidebar.md
@@ -12,6 +12,7 @@
 
   * [基本使用](use.md)
   * [增强功能](npc_extend.md)
+  * [sdk](npc_sdk.md)
 
 * 扩展
 
diff --git a/docs/npc_sdk.md b/docs/npc_sdk.md
new file mode 100644
index 0000000..db70772
--- /dev/null
+++ b/docs/npc_sdk.md
@@ -0,0 +1,23 @@
+# npc sdk文档
+
+```
+命令行模式启动客户端
+p0->连接地址
+p1->vkey
+p2->连接类型（tcp or udp）
+p3->连接代理
+
+extern GoInt StartClientByVerifyKey(char* p0, char* p1, char* p2, char* p3);
+
+查看当前启动的客户端状态，在线为1，离线为0
+extern GoInt GetClientStatus();
+
+关闭客户端
+extern void CloseClient();
+
+获取当前客户端版本
+extern char* Version();
+
+获取日志，实时更新
+extern char* Logs();
+```
diff --git a/docs/use.md b/docs/use.md
index deeda30..5ac6cce 100644
--- a/docs/use.md
+++ b/docs/use.md
@@ -18,6 +18,8 @@
 - 停止：`npc.exe stop`
 - 如果需要更换命令内容需要先卸载`npc.exe -service=uninstall`，再重新注册
 
+注册到服务后，日志文件windows位于当前目录下，linux和darwin位于/var/log/npc.log
+
 ## 客户端更新
 首先进入到对于的客户端二进制文件目录
 
diff --git a/update.sh b/update.sh
deleted file mode 100644
index 3e0bfe3..0000000
--- a/update.sh
+++ /dev/null
@@ -1,50 +0,0 @@
-#/bash/sh
-echo "start upgrading to the latest version"
-if [ $1 == "latest" ]
-then
-  version=`wget -qO- -t1 -T2 "https://api.github.com/repos/cnlh/nps/releases/latest" | grep "tag_name" | head -n 1 | awk -F ":" '{print $2}' | sed 's/\"//g;s/,//g;s/ //g'`
-else
-  version=$1
-fi
-echo "the current latest version is "$version""
-download_base_url=https://github.com/cnlh/nps/releases/download/$version/
-
-if [ $4 ]
-then
-  filename=""$2"_"$3"_v"$4"_"server".tar.gz"
-else
-  filename=""$2"_"$3"_"server".tar.gz"
-fi
-complete_download_url=""$download_base_url""$filename""
-echo "start download file from "$complete_download_url""
-
-dir_name=`echo $RANDOM`
-mkdir $dir_name && cd $dir_name
-wget $complete_download_url >/dev/null 2>&1
-if [ ! -f "$filename" ]; then
-  echo "download file failed!"
-  rm -rf $dir_name
-  exit
-fi
-
-echo "start extracting files"
-mkdir nps
-tar -xvf $filename -C ./nps  >/dev/null 2>&1
-cd nps
-
-if [ -f "../../nps" ]; then
-  echo "replace "../../nps"!"
-  cp -rf nps ../../
-fi
-
-usr_dir=`which nps`
-
-if [ -f "$usr_dir" ]; then
-  echo "replace "$usr_dir"!"
-  cp -rf nps $usr_dir
-fi
-
-cd ../../ && rm -rf $dir_name
-
-echo "update complete!"
-echo -e "\033[32m please restart nps \033[0m"