协程 greenlet库
pip install greenlet
文档
https://greenlet.readthedocs.io/en/latest/
from greenlet import greenlet
def test1():
print(12)
gr2.switch()
print(34)
def test2():
print(56)
gr1.switch()
print(78)
gr1 = greenlet(test1)
gr2 = greenlet(test2)
gr1.switch()
"""
12
56
34
首先创建两个执行对象
gr1.switch() 跳转到test1函数,打印12
跳转到test2函数,打印56
跳转到test1函数,打印34,test1执行完毕,gr1死亡,即gr1.switch()执行完毕,不会打印78
"""
from greenlet import greenlet
def test1(x, y):
z = gr2.switch(x+y)
print(z)
def test2(u):
print(u)
gr1.switch(42)
gr1 = greenlet(test1)
gr2 = greenlet(test2)
gr1.switch("hello", " world")
"""
hello world
42
"""