How to combine two byte arrays [repeat] - how to combine two byte arrays [duplicate]

problem ：

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• Easy way to concatenate two byte arrays12 answers A simple way to connect two byte arrays 12 Answer

I have two byte arrays and I am wondering how I would go about adding one to the other or combining them to form a new byte array. I have two byte arrays , I want to know how to add one to another or combine them to form a new byte array .

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Solution ：

Reference resources ： https://stackoom.com/en/question/NqX8