From a454332128dff4cd744ccf98f84dce556c59fb06 Mon Sep 17 00:00:00 2001
From: e1732a364fed <75717694+e1732a364fed@users.noreply.github.com>
Date: Sat, 1 Jan 2000 00:00:00 +0000
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E4=B8=8A=E4=B8=80=E4=B8=AAco?=
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---
 netLayer/dial.go   |  1 +
 netLayer/listen.go | 11 +++++++++--
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/netLayer/dial.go b/netLayer/dial.go
index 47af47b..5d351bf 100644
--- a/netLayer/dial.go
+++ b/netLayer/dial.go
@@ -8,6 +8,7 @@ import (
 )
 
 var (
+	//你可以通过向这个map插入 自定义函数的方式 来拓展 vs的 拨号功能, 可以拨号 其它 net包无法拨号的 network
 	CustomDialerMap = make(map[string]func(address string, timeout time.Duration) (net.Conn, error))
 )
 
diff --git a/netLayer/listen.go b/netLayer/listen.go
index 559ea8a..b9e66aa 100644
--- a/netLayer/listen.go
+++ b/netLayer/listen.go
@@ -14,6 +14,7 @@ import (
 )
 
 var (
+	//你可以通过向这个map插入 自定义函数的方式 来拓展 vs的 监听功能, 可以监听 其它 net包无法监听的 network
 	CustomListenerMap = make(map[string]func(address string) (net.Listener, error))
 )
 
@@ -153,11 +154,17 @@ func ListenAndAccept(network, addr string, sockopt *Sockopt, xver int, acceptFun
 
 		if len(CustomListenerMap) > 0 {
 			if f := CustomListenerMap[network]; f != nil {
-				return f(addr)
+				listener, err = f(addr)
+				if err != nil {
+					return
+				}
 			}
 		}
 
-		listener, err = net.Listen(network, addr)
+		if listener == nil {
+			listener, err = net.Listen(network, addr)
+		}
+
 		if err != nil {
 			return
 		}