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function getNumber() local function getNumberHelper() co = coroutine.create(function () coroutine.yield(1) coroutine.yield(2) coroutine.yield(3) coroutine.yield(4) coroutine.yield(5) end) return co end if(numberHelper) then status, number = coroutine.resume(numberHelper); if coroutine.status(numberHelper) == "dead" then numberHelper = getNumberHelper() status, number = coroutine.resume(numberHelper); end return number else numberHelper = getNumberHelper() status, number = coroutine.resume(numberHelper); return number end end for index = 1, 10 do print(index, getNumber()) end
运行结果 :
正在执行...
