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csdn
13 年
关于python的os.popen,异步IO的问题
小弟写一个程序,用到了os.popen(cmd)方法,为得是获取系统执行cmd后的标准输出 但是,由于异步IO的原理,该方法只有在cmd执行完之后才放回数据流 现在的需求是要求及时获得cmd的输出,例如每隔2秒打印一次,直到cmd运行完成。谢谢 ...
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