sleep方法是在Thread类中的一个静态方法,当一个线程调用了sleep方法,被调用的那个线程就会暂时的让出指定时间的CPU执行权,在这段时间也不会参与CPU的调度,当时间到了之后,就会重新回到就绪状态,等待CPU的再次调度,注意是就绪状态,而不是重新拿回CPU的执行权.并且,在休眠期间,只是会让出CPU的执行权,但是之前获得的锁资源,还是继续持有,等CPU调度到该线程重新获取到执行权的时候,就会继续运行sleep之后的代码.接下来用一个例子来说明Sleep期间不会放弃锁资源 public
本期目标: 理解Thread Groups的顺序执行与并行执行 控制因子:Run Thread Groups consecutively(i.e.one at time) 预期结论: 1.勾选 Run Thread Groups consecutively(i.e.one at time),则表示顺序执行.顺序执行,指的是测试计划中存在多个线程组时,第一个线程组执行完后再执行下一个线程组. 2.不勾选 Run Thread Groups consecutively(i.e.one at time
def simpleGeneratorFun(): yield 1 yield 2 yield 3 for value in simpleGeneratorFun(): print(value) def nextSquare(): i = 1 while True: yield i * i i += 1 for num in nextSquare(): if num > 100: break print(num) http://www.geeksforgeeks.org/use-yield-ke
什么是环境? http://www.lua.org/manual/5.1/manual.html#2.9 Besides metatables, objects of types thread, function, and userdata have another table associated with them, called their environment. Like metatables, environments are regular tables and multiple