Vectors are used to group related signals using one name to make it more convenient to manipulate. For example, wire [7:0] w; declares an 8-bit vector named w that is functionally equivalent to having 8 separate wires. 向量用于通过一个名称对相关信号进行分组，以更方便地对其进行操作。例如，wire [7:0] w; 声明了一个名为 w 的 8 位向量，其功能等同于拥有 8 根独立的导线。
Notice that the declaration of a vector places the dimensions before the name of the vector, which is unusual compared to C syntax. However, the part select has the dimensions after the vector name as you would expect. 请注意，向量的声明是将维度放在向量名称之前，这与 C 语言的语法不同。不过，在选取部分，维度的位置则如你所预期的那样，放在向量名称之后。
Build a circuit that has one 3-bit input, then outputs the same vector, and also splits it into three separate 1-bit outputs. Connect output o0 to the input vector's position 0, o1 to position 1, etc. 构建一个具有一个3位输入的电路，该电路输出相同的向量，并将其拆分为三个独立的1位输出。将输出o0连接到输入向量的第0位，o1连接到第1位，依此类推。
In a diagram, a tick mark with a number next to it indicates the width of the vector (or "bus"), rather than drawing a separate line for each bit in the vector. 在图中，旁边标有数字的刻度线表示向量（或“总线”）的宽度，而非为向量中的每一位单独绘制一条线。 
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