定义输出为vote；输出为pass；则代码为：

module    voter7(vote,pass);input    [6:0] vote;output    pass;reg  [2:0]  sum;integer    i;reg    pass;always  @(vote)beginsum = 0;for(i=0;i<=6;i=i+1)        //for语句if(vote[i])sum = sum +1;if(sum[2])              //若超过4人赞成，则pass=1pass = 1;elsepass = 0;endendmodule