'compile' step failed with error(s) while executing 初学者的问题

module test_bidata; reg clk; reg z; reg[15:0]din; wire[15:0]dout; wire[15:0]dinout; integer i; bidirec_data uut(     .din(din),     .z(z),     .clk(clk),     .dout(dout),     .dinout(dinout), ); alway

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