第一次用威綸通的HMI,想在屏上顯示程序行號，當LW=0，時在屏上的LB0=1，顯示為紅色，然后，當LW=1時，LB1=1,LB0變為0，也就是說，LW=n,LBN=1，共300行，寫了一段宏代碼，能用，但是，300行那么多，有沒有更簡的方法嗎？希望高人指正，謝謝。
下面是宏代碼：限于篇幅只列出0到4步
macro_command main()
short a
bool on=1,off=0
GetData(a,"Local HMI",lw,0,1)
if a==0 then
SetData(on,"Local HMI",lb,0,1)
else
SetData(off,"Local HMI",lb,0,1)
end if
if a==1 then
SetData(on,"Local HMI",lb,1,1)
else
SetData(off,"Local HMI",lb,1,1)
end if
if a==2 then
SetData(on,"Local HMI",lb,2,1)
else
SetData(off,"Local HMI",lb,2,1)
end if
if a==3 then
SetData(on,"Local HMI",lb,3,1)
else
SetData(off,"Local HMI",lb,3,1)
end if
if a==4 then
SetData(on,"Local HMI",lb,4,1)
else
SetData(off,"Local HMI",lb,4,1)
end if

end macro_command