搞不懂为啥非要加上clk,rst信号,咱也不懂咱也不敢问 ````timescale 1ns/1ns module function_mod( input clk, input rst_n, input [3:0]a, input [3:0]b, output [3:0]c, output [3:0]d ); assign c = rst_n?revrs(a):0; assign d = rst_n?revrs(b):0; function [3:0] revrs; input [3:0] datain; ...