请教一下此程序，谢谢

@echo off
setlocal enabledelayedexpansion
set repeatNum=5
set repeatCount=0
set adslUser=057188063987
set adslPass=235698
set adslName=宽带连接
set total=171

:loop
set val=1
for /f "delims=" %%i in (c:\url.txt) do (
echo.
ping 127.1 -n 3 >nul 2>&1
set /a var+=1
echo 计数%total%次暂停3分钟并关闭TheWorld.exe，当前计数!var!
echo.
if !var! geq %total% (
ping 127.1 -n 60 >nul 2>&1
set var=0
taskkill /im TheWorld.exe /f >nul
) else (
echo %%i
echo.
start %%i
)
)
set /a repeatCount+=1
if !repeatCount! lss %repeatNum% (
rasdial "%adslName%" /disconnect
rem 请根据自己的网络情况自行调节延时的长短以确保能够能够获得新的IP
ping -n 10 127.1 >nul
rasdial "%adslName%" %adslUser% %adslPass%
goto :loop
)
pause>nul










关于此程序哪条是控制每次打开链接的速度 的，我想设置每打开一个链接就暂停15秒。不知道能不能设的，谢谢！