我在应用层加重发机制就是把终端的AF_DataRequest函数的option改为AF_ACK_REQUEST,就可以了么。然后在else中循环就可以了么。为什么我始终进不了else呢?
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我在应用层加重发机制就是把终端的AF_DataRequest函数的option改为AF_ACK_REQUEST,就可以了么。然后在else中循环就可以了么。为什么我始终进不了else呢?