在系统内部，字符串只是一个字节序列。

Internally, a string is just a series of bytes.

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设备令牌的长度为两个字节的整数值的网络字节序。

The length of the device token as a two-byte integer value in network order.

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设备令牌的长度为两个字节的整数值的网络字节序。

The length of the device token as a two-byte integer value in network order.

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