1 print("Lua 协程测试2")
 2 
 3 function testFun(n)
 4     print("into foo，n = "..n)
 5     return coroutine.yield(10 * n) -- 挂起co协程
 6 end
 7     
 8 co = coroutine.create( -- 创建co协程
 9     function(a,b)
10         print("into co 1,a = "..a..",b = "..b)
11         local r = testFun(a)
12         print("into co 2,r = "..r..",a = "..a..",b = "..b)
13         local m,n = coroutine.yield(2 * a , 2 * b) -- 挂起co协程
14         print("into co 3,m = "..m..",n = "..n..",a = "..a..",b = "..b)
15         return a,b,"结束co协程"
16     end
17 )
18 
19 print("main",coroutine.resume(co,10,20)) -- 启动co协程
20 print("main",coroutine.resume(co,"resume1")) -- 唤醒co协程
21 print("main",coroutine.resume(co,"resume2-m","resume2-n")) -- 唤醒co协程
22 print("main",coroutine.status(co))
23 
24 运行结果：
25 Lua 协程测试2
26 into co 1,a = 10,b = 20
27 into foo，n = 10
28 main    true    100
29 into co 2,r = resume1,a = 10,b = 20
30 main    true    20    40
31 into co 3,m = resume2-m,n = resume2-n,a = 10,b = 20
32 main    true    10    20    结束co协程
33 main    dead