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嵌入式软件几种延时的副作用
一、阻塞型延时 阻塞的原理就是:在延时期间,本线程的事件循环得不到执行。 1、QThread类的sleep() 最简单的延时方法就是使用QThread类的sleep(n)、msleep(n)、usleep(n),这几个函数的不良后果就是,GUI会在延时的时间段内失去响应,界面卡死,所以,这三个函数一般 ...
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