I have two tasks but only execute one

[cy0405]

package main

import (
"fmt"
"github.com/robfig/cron"
"net/http"
"strings"
"time"
)

//周一至周五每天早上10点至下午6点提醒喝水
func main() {
fmt.Println("程序开始时间======",time.Now())
c := cron.New()

//spec := "0 0 9,10,11,12,14,15,16,17,18 * * ? "
spec := "0 0 9,10,11,12,14,15,16,17,18 * * ?"

err:=c.AddFunc(spec, func() {
	fmt.Println("time=====",time.Now())
	fmt.Println("=======================开始执行喝水任务=======================")

	url := "http://ep.yoozoo.com/api/feishu/msg"
	payload := strings.NewReader("{\n\t\"msg_type\": \"text\",\n    \"account\": \"oc_f1d263808c91f074b0eef45a782c92fd\",\n    \"send_obj\": \"chat\",\n    \"text\": \"记得喝水哦\"\n}")
	req, _ := http.NewRequest("POST", url, payload)


	req.Header.Add("content-type", "application/json")
	req.Header.Add("cache-control", "no-cache")

	_,e:=http.DefaultClient.Do(req)
	if e!=nil {
		fmt.Println("http do err:======",e)
		return
	}


})
err=c.AddFunc(spec, func() {
	fmt.Println("=======================开始执行吃饭任务=======================")
	fmt.Println("time=====",time.Now())

})
if err!=nil{
	fmt.Println(" AddFunc err=====",err)
}
c.Start()
select {}

}

GOROOT=/usr/local/Cellar/go/1.15.2/libexec #gosetup
GOPATH=/Users/chenbo/go #gosetup
/usr/local/Cellar/go/1.15.2/libexec/bin/go build -o /private/var/folders/mb/xf7blvj94tb09rqxmqlhsj8c0000gn/T/___go_build_drink_water drink-water #gosetup
/private/var/folders/mb/xf7blvj94tb09rqxmqlhsj8c0000gn/T/___go_build_drink_water
程序开始时间====== 2020-11-17 09:50:03.728168 +0800 CST m=+0.000518304
=======================开始执行吃饭任务=======================
time===== 2020-11-17 10:00:00.000498 +0800 CST m=+596.277799346
time===== 2020-11-17 10:00:00.000329 +0800 CST m=+596.277630310
=======================开始执行喝水任务=======================
=======================开始执行吃饭任务=======================
time===== 2020-11-17 11:00:00.00356 +0800 CST m=+4196.345111085
time===== 2020-11-17 11:00:00.003544 +0800 CST m=+4196.345095894
=======================开始执行喝水任务=======================

version require github.com/robfig/cron v1.2.0