diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..d65ccd1
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,9 @@
+all: build-linux-arm64 build-linux-amd64
+
+build-linux-arm64:
+	CGO_ENABLED=0 GOOS=linux GOARCH=arm64 GO111MODULE=on   go mod tidy
+	CGO_ENABLED=0 GOOS=linux GOARCH=arm64 GO111MODULE=on   go build -v -a -o pong pong.go
+
+build-linux-amd64:
+	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
\ No newline at end of file
diff --git a/goping/goping.go b/goping/goping.go
index f06b2b3..d81b969 100644
--- a/goping/goping.go
+++ b/goping/goping.go
@@ -126,6 +126,8 @@ func Ping(domain string, PS int) {
 			fmt.Printf("%s\n", red("timeout"))
 			dropPack++
 			time.Sleep(time.Second)
+			fmt.Println("666666666666666666666666666")
+
 			continue
 		}
 		// 否则记录当前得时间
@@ -140,23 +142,29 @@ func Ping(domain string, PS int) {
 			dropPack++
 			time.Sleep(time.Second)
 			continue
+			fmt.Println("777777777777777777777777777777777777777777")
 		}
 		t_end := time.Now()
 		dur := float64(t_end.Sub(t_start).Nanoseconds()) / 1e6
 		ret_list = append(ret_list, dur)
 		if dur < max_lan {
 			max_lan = dur
+			fmt.Println("88888888888888888888888")
 		}
 		if dur > min_lan {
 			min_lan = dur
+			fmt.Println("999999999999999999999999999999999")
 		}
-
+		fmt.Println("33333333333333333333333333333333333333333333333")
 		select {
 		case s := <-c:
+			fmt.Println("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
 			foot(raddr.String(), icmp_seq, dropPack, min_lan, avg_lan, max_lan, ret_list)
 			os.Exit(0)
 			fmt.Println("Got signal:", s)
+
 		default:
+			fmt.Println("bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb")
 			if dur <= 50 {
 				fmt.Printf("%d bytes from %s (%s): icmp_seq=%d ttl=53 time=%.3f %s\n", len, raddr.String(), raddr.String(), icmp_seq, dur, green("ms"))
 			} else if dur <= 500 {
diff --git a/goping/ping_test.go b/goping/ping_test.go
index 2dcd47c..3288809 100644
--- a/goping/ping_test.go
+++ b/goping/ping_test.go
@@ -9,6 +9,9 @@ import (
 	"time"
 )
 
+func TestPing2(t *testing.T) {
+	Ping("www.baidu1.com", 48)
+}
 func TestColor(tt *testing.T) {
 	// Create SprintXxx functions to mix strings with other non-colorized strings:
 	yellow := color.New(color.FgYellow).SprintFunc()
diff --git a/readme.md b/readme.md
index 9f5861c..ca0f368 100644
--- a/readme.md
+++ b/readme.md
@@ -16,8 +16,7 @@ cd /root
 rm -rf pong
 git clone https://git.sre.ink/go/pong.git
 cd pong
-CGO_ENABLED=0 GOOS=linux GOARCH=arm64 GO111MODULE=on   go mod tidy
-CGO_ENABLED=0 GOOS=linux GOARCH=arm64 GO111MODULE=on   go build -v -a -o pong pong.go
+make build-linux-arm64
 rm -rf /usr/bin/pong
 mv pong /usr/bin/
 pong www.baidu.com 443