Failed to plot

I have added the PLots.jl But when I use it to plot.It shows me such wrong.

using Plots
plot([1,2,3])

ERROR: LoadError: UndefVarError: plot not defined
Stacktrace:
[1] top-level scope at untitled-752712825fa0b1fb343e0b150fd2e086:1
[2] include_string(::Function, ::Module, ::String, ::String) at .\loading.jl:1088
in expression starting at untitled-752712825fa0b1fb343e0b150fd2e086:1

My Julia environment is JuliaPro 1.5.4-1. Can you help me using the Plot.jl in JuliaPro 1.5.4-1.

add Plots

Please don’t use JuliaPro, it is not actively maintained. Try again with Julia 1.7.3, the current release.