// assign statements (if any) top_module i1 (
// port map - connection between master ports and signals/registers .CLK(CLK), .LED_Out(LED_Out), .RSTn(RSTn) );
initial
begin
// code that executes only once // insert code here --> begin RSTn = 0; #10 RSTn = 1;
// --> end //$display("Running testbench"); end
initial
//模块功能 begin
CLK=0; while(1) #10 CLK = ~CLK; end