赋值语句有两种，即信号赋值语句和变量赋值语句。每一种赋值语句都有三个基本组成部分，即赋值目标、赋值符号和赋值源。信号赋值语句和变量赋值语句的语法格式如下 :-There are two assignment statements, that is, the signal assignment statements and variable assignments. Each assignment has three basic comp