Question

js如何让下面这些多个同样的代码循环合并成一个function

$(function () {
var len = $(".set-list div:eq(0) li").length;
var le =len-40;
var lf =len-39;
var lc =len-6;
if (len > 40) {
$(".set-list div:eq(0) li:gt(33):lt("+le+")").hide();
$(".set-list div:eq(0) li:gt("+lc+")").show();
$(".set-list div:eq(0) li").filter(":nth-child(34)").after("<li class='la'><a>......</a></li>");
$(".set-list div:eq(0) li").filter(":last").after("<li class='lb' style='display:none'><a>收缩</a></li>");
$(".set-list div:eq(0) .la").click(function(){$(".set-list div:eq(0) li").show();$(".set-list div:eq(0) li").filter(":nth-child(35)").hide ();});
$(".set-list div:eq(0) .lb").click(function(){$(".set-list div:eq(0) li:gt(34):lt("+lf+")").hide();$(".set-list div:eq(0) li").filter(":nth-child(35)").show();$(".set-list div:eq(0) li").filter(":last").hide ();});
}});

$(function () {
var len = $(".set-list div:eq(1) li").length;
var le =len-40;
var lf =len-39;
var lc =len-6;
if (len > 40) {
$(".set-list div:eq(1) li:gt(33):lt("+le+")").hide();
$(".set-list div:eq(1) li:gt("+lc+")").show();
$(".set-list div:eq(1) li").filter(":nth-child(34)").after("<li class='la'><a>......</a></li>");
$(".set-list div:eq(1) li").filter(":last").after("<li class='lb' style='display:none'><a>收缩</a></li>");
$(".set-list div:eq(1) .la").click(function(){$(".set-list div:eq(1) li").show();$(".set-list div:eq(1) li").filter(":nth-child(35)").hide ();});
$(".set-list div:eq(1) .lb").click(function(){$(".set-list div:eq(1) li:gt(34):lt("+lf+")").hide();$(".set-list div:eq(1) li").filter(":nth-child(35)").show();$(".set-list div:eq(1) li").filter(":last").hide ();});
}});

$(function () {
var len = $(".set-list div:eq(2) li").length;
var le =len-40;
var lf =len-39;
var lc =len-6;
if (len > 40) {
$(".set-list div:eq(2) li:gt(33):lt("+le+")").hide();
$(".set-list div:eq(2) li:gt("+lc+")").show();
$(".set-list div:eq(2) li").filter(":nth-child(34)").after("<li class='la'><a>......</a></li>");
$(".set-list div:eq(2) li").filter(":last").after("<li class='lb' style='display:none'><a>收缩</a></li>");
$(".set-list div:eq(2) .la").click(function(){$(".set-list div:eq(2) li").show();$(".set-list div:eq(2) li").filter(":nth-child(35)").hide ();});
$(".set-list div:eq(2) .lb").click(function(){$(".set-list div:eq(2) li:gt(34):lt("+lf+")").hide();$(".set-list div:eq(2) li").filter(":nth-child(35)").show();$(".set-list div:eq(2) li").filter(":last").hide ();});
}});

Answer 1

把多个文件里的js 函数代码复制到一个js文件里就可以，建议上下要注释清楚，方便后期有问题知道在哪修改。然后在HTML中引用这个js 文件就可以了，建议合并的js是自己写的，如果是网上下载的js包就不要合并了像这种 jquery.min.js 的

追问

汗，我是说换这些代码改成一段代码，不是说合在一个js里面，这个代码太多了，希望
循环表达出来。