Performance Considerations for Direct3D9 and WPF Interoperability
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GDI/GDI+ 是什么 GDI is the main graphics library for Windows applications today. It provides 2D graphics and text functionality, as well as limited imaging functionality. There is some level of acceler
最近翻到一篇知乎，上面有不少用Python（大多是turtle库）绘制的树图，感觉很漂亮，我整理了一下，挑了一些我觉得不错的代码分享给大家（这些我都测试过，确实可以生成）
one 樱花树
动态生成樱花
效果图（这个是动态的）：
实现代码
import turtle as T
import random
import time
# 画樱花的躯干(60,t)
def Tree(branch, ...
Python代码练习(一)：基础
练习1
求从1到100的数字<em>中</em>所有能既能被3整除，又能被5整合的数字有哪些。
for x in range(1,101):
if x%3==0 and x%5==0:
print(x)
else:
pass
练习2：
输入一个字符串返回满足以下条件的字符串
■ 如果字符串长度大等于3，添加 ‘ing’ 到字符...
一、每日感想
It is (has been) estimated that the world’s population could reach 6 billion by the end of the century.
据估计，到本世纪末，世界人口将达到60亿。
三连更，三连更，考研所有要买的书（除了政治暑假买），基本都准备齐了，心里从未有过的舒坦，最近很多小伙伴私信我提问各种问题，必须给他们好...
