乘法运算

macro_command main()
short a[3]
GetData(a[0], "Local HMI", LW, 0, 2)
a[2]=a[0]*a[1]
SetData(a[2], "Local HMI", LW, 2, 2)
end macro_command
试着学着写了一个

SetData(a[2], "Local HMI", LW, 2, 1)  是一个数据

谢谢您的指导