Question

js返回顶部代码在文章页能显示，在首页不行。以下代码有什么错误吗……。

var fixwidth=968;var winh=$(window).height();if($(window).width()>fixwidth+110){var winw=($(window).width()-fixwidth)/2-55}else{var winw=50}var scrolltotop={setting:{startline:200,scrollto:0,scrollduration:300},controlHTML:'<div id="topcontrolin"><div id="xqtoparrow"></div><div id="xqtopword">\u56de\u9876\u90e8</div></div>',controlattrs:{offsetx:winw,offsety:winh/3-100},anchorkeyword:"#top",state:{isvisible:false,shouldvisible:false},scrollup:function(){var a=isNaN(this.setting.scrollto)?this.setting.scrollto:parseInt(this.setting.scrollto);if(typeof a=="string"&&jQuery("#"+a).length==1)、

Answer 1

var fixwidth = 968;
var winh = $(window).height();
if ($(window).width() > fixwidth + 110) {
    var winw = ($(window).width() - fixwidth) / 2 - 55
} else {
    var winw = 50
}
var scrolltotop = {
        setting: {
            startline: 200,
            scrollto: 0,
            scrollduration: 300
        },
        controlHTML: '<div id="topcontrolin"><div id="xqtoparrow"></div><div id="xqtopword">\u56de\u9876\u90e8</div></div>',
        controlattrs: {
            offsetx: winw,
            offsety: winh / 3 - 100
        },
        anchorkeyword: "#top",
        state: {
            isvisible: false,
            shouldvisible: false
        },
        scrollup: function() {
                var a = isNaN(this.setting.scrollto) ? this.setting.scrollto : parseInt(this.setting.scrollto);
                if (typeof a == "string" && jQuery("#" + a).length == 1

帮你重新贴下代码。。。

看格式应该是用了某个插件，看看首页是否有这个插件，还有首页的锚#top是否存在

Answer 2

你带代码层次呢