Cheryl的加工厂

import turtle# 定义圣诞树的绿叶函数def tree(d, s): if d <= 0: return turtle.forward(s) tree(d - 1, s * .8) turtle.right(120) tree(d - 3, s * .5) turtle.right(120) tree(d - 3, s * .5) turtle.right(120) turtle.backwar

python安装依赖包时，依赖包链接遇到以下问题：d:\programs\python\python39\python.exe -m pip install --upgrade pip执行 pip install python_ldap-3.3.1-cp37-cp37m-win_amd64.whl 时，报错：D:\Programs>pip install python_ldap-3.3.1-cp37-cp37m-win_amd64.whlERROR: python_ldap-3.3.1-