本文的初衷是为了使已经对Verilog HDL有过初步了解的读者，能够进一步了解Verilog HDL与综合后的硬件之间的映射关系，从而改善代码风格，写出高效可综合的代码。-The original intention of this article to make readers already have a preliminary understanding of the Verilog HDL, and be able to learn more about the mapping bet