julia + plots 【annotate -- 给图形加

调用annotate

举例如下：

function annotate_test()
    plot(1:10)
    annotate!(1,1,"1-1")                                 #最简单的写法：x,y,"text"
    annotate!(2,2,"2-2",:red)                            #带【颜色】的写法
    annotate!(3,3,text("3-3", 14, :left, :top, :green))  #带【字号】,【布局】，【颜色】的写法
    annotate!([(4,4,"4-4",:green),(5,5,"5-5",:red)])     #一次标记多个。格式：[(标记1),(标记2),...（标记N）]
end

annotate_test()