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Chapter 2 about the stratified sampling example

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In chapter 2, there is a stratified sampling: For example, the US population is composed of 51.3% female and 48.7% male, so a well-conducted survey in the US would try...

不知道能不能实现如下场景： 1. 报文头的长度是固定的，比如4个bytes short length 报文长度 （假设不包括报文头的长度） short messageID 报文的ID，报文的唯一标识 2. 有多个报文， 长度和ID都不同， 2.1 报文1, 报文长度10 + 4 = 14 bytes short length 2 bytes short messageID 2 bytes string...