[编程问题求助] 求助stata循环语句 [推广有奖]

clear
set obs 1
scalar  x = 0.1
scalar  y = 0.1
scalar  z = 0.1
forvalue i=1/999{
gen double dx`i'=0.001*10*(y-x)
gen double dy`i'=0.001*(x*(28-z)-y)
gen double dz`i'=0.001*(x*y-8/(3*z))
scalar x=x+dx`i'
scalar y=y+dy`i'
scalar z=z+dz`i'
}
scalar list x y z
本人菜鸟，希望对你有帮助