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你好，发送模式有AddrNotPresent，AddrGroup ，Addr16Bit ，Addr64Bit，AddrBroadcast
有几个问题：
1.绑定后是不是协调器发送，所有被绑定的设备都能收到？绑定后要发送的话目的地址是不是写0？
2.绑定和广播什么区别？
3.广播模式，目的地址该怎么填？组播模式下的话又怎么填？
