在VHDL结构体中用于描述逻辑功能和电路结构的语句分为顺序语句和并行语句两部分，顺序语句的执行方式十分类似于普通软件语言的程序执行方式，都是按照语句的前后排列方式顺序执行的。-VHDL structure in the body used to describe the logic function and circuit structure of the order of statements and expressions are divided into two parts in para

用FPGA实现并行分布式算法的VHDL程序，采用优化结构实现，功能正确-FPGA implementation using VHDL program parallel and distributed algorithms, realized by optimizing the structure and function correctly