]add LinearAlgebra # 安装库以创建单位矩阵

using LinearAlgebra
A,B,C,D,E,F,G = [Matrix{Int}(I, 7, 7)[:, i] for i in 1:7];
# 在这一行中，我们创建一个7*7的单位矩阵，并使用生成器（comprehension）将其列转移到变量中。

# 用于在数字图像中包括相应段的序列定义如下:
one = B+C
two = A+B+G+E+D
three = A+B+G+C+D
four = F+G+B+C
five = A+F+G+C+E
six = A+F+G+E+D+C
seven = A+B+C
eight = A+B+C+D+E+F+G
nine = A+B+C+D+F+G
zero = collect(zeros(Int, 7));

import .engee.package as epkg

const PKGNAME = "Engee-Device-Manager"

function epkg_start(pkg::String)
    if !epkg.isinstalled(pkg)
        @info "Package not installed. Installing and Starting..."
        epkg.install(pkg)
        @info "Package is up to date. Starting..."
        println("连接到服务器的链接：\n"*epkg.start(pkg))
    else
        updates = epkg.checkupdates(pkg)
        if isnothing(updates)
            @info "Package is up to date. Starting..."
            println("连接到服务器的链接：\n"*epkg.start(pkg))
        else
            @info "Updates available. Reinstalling and Starting..."
            epkg.update(pkg)
            @info "Package is up to date. Starting..."
            println("连接到服务器的链接：\n"*epkg.start(pkg))
        end
    end
end

epkg_start(PKGNAME)