Lua之协同程序coroutine代码实例

do

--create coroutine table

--coroutine state: suspended, running, dead, normal

--when create the coroutine, the status is suspended, After calling it, the status is dead

--get the coroutine status by the way coroutine.status

local coA = 0;

local coB = 0;

function createCoroutineA()

coA = coroutine.create(

function()

--for i = 0, 10 do

print("coA: ", 0);

print("coB status: ", coroutine.status(coB)); --normal status

print("coA status: ", coroutine.status(coA));

print("coA coroutine next status");

--coroutine.yield();--the current coroutine is suspended

--end

end

);

print("From coA to resume coB");

end

function createCoroutineB()

coB = coroutine.create(

function()

--for i = 0, 10 do

print("coB: ", 0);

print("coA status: ", coroutine.status(coA));

coroutine.resume(coA); --when resume coA, the coB will suspended, calling coB ,the coA status is

--suspended and dead, this time will continue to execute the next code

print("coB status: ", coroutine.status(coB));

print("coB coroutine next status");

--coroutine.yield();

--end

end

);

print("From coB to resume coA");

end

--display the coA and coB status

createCoroutineA();

print(coroutine.status(coA));

createCoroutineB();

print(coroutine.status(coB));

coroutine.resume(coB);

print(coroutine.resume(coB)); --if the coroutine is dead ,the resume will resume false, and can't resume the dead coroutine

--print("coA status: ", coroutine.status(coA));

--print("coB status: ", coroutine.status(coB));

end

注:

resume得到返回值,

如果有对应的yield在wait resume,那么yield的参数作为resum的返回值,第一个返回值表示coroutine没有错误,后面的返回值个数及其值视yeild参数而定。

如果没有yield在wait,那么返回值是对应函数的返回值,:true,* * *

do

--create coroutine table

--coroutine state: suspended, running, dead, normal

--when create the coroutine, the status is suspended, After calling it, the status is dead

--get the coroutine status by the way coroutine.status

local coA = 0;

local coB = 0;

function createCoroutineA()

coA = coroutine.create(

function(paramA, paramB)

--for i = 0, 10 do

print("coA: ", 0);

coroutine.yield(paramA, paramB);--the current coroutine is suspended

--end

return 100, 200;

end

);

print("From coA to resume coB");

end

function createCoroutineB()

coB = coroutine.create(

function()

--for i = 0, 10 do

print("coB: ", 0);

print("coA status: ", coroutine.status(coA));

coroutine.resume(coA); --when resume coA, the coB will suspended, calling coB ,the coA status is

--suspended and dead, this time will continue to execute the next code

print("coB status: ", coroutine.status(coB));

print("coB coroutine next status");

--coroutine.yield();

--end

end

);

print("From coB to resume coA");

end

createCoroutineA();

--if not yield is waiting ,the return values that the main function return as the results of the resume

--or the return as the yield params

print( coroutine.resume(coA, 10, 20));--OutPut:true, 10, 20

end

以上是 Lua之协同程序coroutine代码实例 的全部内容, 来源链接: utcz.com/z/337713.html

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