redblack_tree黯雨**清愁 在2024-03-02 17:48:51 访问5.64 KB 红黑树是一种自平衡的二叉查找树,常用于实现关联数组。它通过在每个节点上增加表示节点颜色的额外信息,并满足以下性质来维护平衡:1. 每个节点要么是红色,要么是黑色;2. 根节点是黑色;3. 每个叶子节点(NIL节点)是黑色;4. 如果一个节点是红色,...
0.9709333333333334#绘制ROC曲线import matplotlib.pyplot as pltimport seaborn as sns# 绘制面积图plt.stackplot(fpr, tpr, color='steelblue', alpha = 0.5,edgecolor = 'black')# 添加边际线plt.plot(fpr, tpr, color='black',lw = 1)# 添加对角线plt.plot([0,1],[0,1],color ='red',linestyle...
This library lives athttps://github.com/todbot/blink1-python Originally written by @salimfadhley, athttps://github.com/salimfadhley/blink1/tree/master/python/pypi. Moved to this repository and rewritten forcython-hidapiby @todbot. Installation ...
15 执行字符串表示的代码 将字符串编译成python能识别或可执行的代码,也可以将文字读成字符串再编译。 In [1]:s="print('helloworld')"In [2]:r=compile(s,"<string>","exec")In [3]:rOut[3]:<codeobject<module>at0x0000000005DE75D0,file"<string>",line1>In [4]:exec(r)helloworld 16 创建...
turtle官方文档:https://docs.python.org/3/library/turtle.html (2).原理 turtle(海龟)是真实的存在,可以想象成一只海龟在窗体正中间,由程序控制在画布上游走,走过的轨迹形成了绘制的图形,可以变换海龟的颜色和宽度等。这里海龟就是我们的画笔。 (3).turtle的绘图窗体布局 ...
ifgreenspaces>redspaces:winner="green"elifgreenspaces<redspaces:winner="red"else:winner="draw"...
(self, text="百战程序员", width=10, height=2, bg="black", fg="white") self.label01["text"] ="ccc" self.label01.config(fg="red", bg="green") self.label01.pack() self.label02 = Label(self, text="高淇老师", width=10, height=2, bg="blue", fg="white", font=("黑体", ...
fred.config(fg="red", bg="blue") 1. 如何查看组件的 Options 选项: 1.可以通过打印 config()方法的返回值,查看 Options 选项 print(fred.config()) 2.通过在 IDE 中,点击组件对象的构造方法,进入到方法内观察: 上面代码中有:“standard options 标准选项”和“widget-specific options 组件特定选项”。我...
To install the Python shared library on RPM based distributions (e.g. Fedora, Red Hat, SuSE), install the python3-devel package. Start a new project with cargo new and add pyo3 to the Cargo.toml like this: [dependencies.pyo3] version = "0.24.2" features = ["auto-initialize"] Exam...
drawCircle(0,0,'blue') drawCircle(60,0,'black') drawCircle(120,0,'red') drawCircle(90,-30,'green') drawCircle(30,-30,'yellow') p.done() 结果: 158 turtle绘制漫天雪花 导入模块 导入turtle库和python的 random import turtle as p import random 绘制雪花 def snow(snow_count): p.hide...