题解 | #求两个数的差值#
求两个数的差值
https://www.nowcoder.com/practice/de8e9138214647f1826e99043a1b7990
`timescale 1ns/1ns module data_minus( input clk, input rst_n, input [7:0]a, input [7:0]b, output reg [8:0]c ); always @(posedge clk or negedge rst_n) begin if(!rst_n)begin c<=9'b0; end else begin if(a>b) begin c=a-b; end else c=b-a; end end endmodule
简单用ifelse解决。若不是定义了C的类型还可以用三元操作符