diff --git a/goping/goping.go b/goping/goping.go
index d81b969..a7654cb 100644
--- a/goping/goping.go
+++ b/goping/goping.go
@@ -122,14 +122,16 @@ func Ping(domain string, PS int) {
 			向目标地址发送二进制报文包
 			如果发送失败就丢包 ++
 		*/
-		if _, err := conn.Write(buffer.Bytes()); err != nil {
+		index, err := conn.Write(buffer.Bytes())
+		if err != nil {
 			fmt.Printf("%s\n", red("timeout"))
 			dropPack++
 			time.Sleep(time.Second)
 			fmt.Println("666666666666666666666666666")
-
 			continue
 		}
+		fmt.Println(index, "index")
+
 		// 否则记录当前得时间
 		t_start := time.Now()
 		conn.SetReadDeadline((time.Now().Add(time.Second * 3)))
diff --git a/readme.md b/readme.md
index ca0f368..254d92f 100644
--- a/readme.md
+++ b/readme.md
@@ -28,9 +28,10 @@ cd /root
 rm -rf pong
 git clone https://git.sre.ink/go/pong.git
 cd pong
-CGO_ENABLED=0 GOOS=linux GOARCH=amd64 GO111MODULE=on GOPROXY="https://goproxy.cn,direct" go mod tidy
-CGO_ENABLED=0 GOOS=linux GOARCH=amd64 GO111MODULE=on GOPROXY="https://goproxy.cn,direct" go build -v -a -o pong pong.go
+make build-linux-amd64
 rm -rf /usr/bin/pong
 mv pong /usr/bin/
 pong www.baidu.com 443
 ```
+# issue
+pong www.baidu1.com 不会捕获ctrlc
\ No newline at end of file