diff --git a/chsrc.c b/chsrc.c
index c6b1a37..a7482b9 100644
--- a/chsrc.c
+++ b/chsrc.c
@@ -182,8 +182,7 @@ static const char const
 **os_packagers[] = {
   os_ubuntu
 };
-// static const char const
-// *os_ubuntu[] = {"ubuntu", NULL,  cmdfunc(os_ubuntu_chsrc)};
+
 #undef chsrcfunc
 
 static const char const*
diff --git a/chsrc.h b/chsrc.h
index 5e8f240..7c0a774 100644
--- a/chsrc.h
+++ b/chsrc.h
@@ -30,12 +30,12 @@ mirror_info
   Pku           = {"PKU",      "北京大学开源镜像站"},
   Bjtu          = {"BJTU",     "北京交通大学自由与开源软件镜像站"},
   Sustech       = {"SUSTech",  "南方科技大学开源软件镜像站"},
-  Ustc          = {"USTC",     "中国科学技术大学开源镜像站"},
+  Ustc          = {"USTC",     "中国科学技术大学开源镜像站"};
 
 // 大型公司
 mirror_info
   Ali      = {"Ali OPSX", "阿里巴巴开源镜像站"},
-  Tencent  = {"Tencent",  "腾讯软件源"};
+  Tencent  = {"Tencent",  "腾讯软件源"},
   Netease  = {"Netease",  "网易开源镜像站"},
   Sohu     = {"SOHU",     "搜狐开源镜像站"};
 
@@ -83,7 +83,7 @@ os_ubuntu_sources[] = {
   {&Ustc,      "https://mirrors.ustc.edu.cn/ubuntu/"},
   {&Tuna,      "https://mirrors.tuna.tsinghua.edu.cn/ubuntu/"},
   {&Tencent,   "https://mirrors.tencent.com/ubuntu/"},
-  {&Wy,        "https://mirrors.163.com/ubuntu/"},
+  {&Netease,   "https://mirrors.163.com/ubuntu/"},
   {&Sohu,      "https://mirrors.sohu.com/ubuntu/"},
 };
 
diff --git a/helper.h b/helper.h
index f479eb4..14829e9 100644
--- a/helper.h
+++ b/helper.h
@@ -98,13 +98,9 @@ xy_log (int level, const char* str)
 #define xy_error(str) xy_log (XY_ERROR, str)
 
 
-/*
- * 
- * 
- * 
- * 
- * 
- * */
+/**
+ *
+ */
 static char*
 xy_strch (const char* str, char src,const char* dest)
 {