LUA程序设计第4版第24章练习答案

f24.1 生产者设计驱动模式

function producer()
    while true do
        local x = io.read()
        send(x)
    end
end
function consumer(x)
    print(x)
    while true do
        print(receive())
    end
end
function send(x)
    coroutine.resume(consumer,x)
end
function receive()
    return coroutine.yield()
end
consumer = coroutine.create(consumer)
producer()