是引导页（guide） 不是 启动界面 （splash）详细设置步骤见：uniapp设置引导页

https://www.uniapp.club/thread-13.htm

第一步：把pages.json设置如下

{    "pages" : [        //pages数组中第一项表示应用启动页，参考：https://uniapp.dcloud.io/collocation/pages        {            "path" : "pages/index/index",            "style" : {                "app-plus" : {                    "titleNView" : false //禁用原生导航栏                }            }        },        {            "path" : "pages/main/main",            "style" : {                "navigationBarTitleText" : "uni-app引导页实例"            }        }    ],    "globalStyle" : {        "navigationBarTextStyle" : "black",        "navigationBarTitleText" : "",        "navigationBarBackgroundColor" : "#F8F8F8",        "backgroundColor" : "#F8F8F8"    }}

第二步：设置index.vue页面格式

<template>    <view class="content">        <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" class="swiper" :style="{'height':windowHeight}"         @animationfinish="animationfinish">            <swiper-item>                <view class="swiper-item" :style="{'height':windowHeight,'background-color':'red'}">A</view>            </swiper-item>            <swiper-item>                <view class="swiper-item" :style="{'height':windowHeight,'background-color':'green'}">B</view>            </swiper-item>            <swiper-item>                <view class="swiper-item" :style="{'height':windowHeight,'background-color':'pink'}">C</view>            </swiper-item>            <swiper-item>                <view class="swiper-item" :style="{'height':windowHeight,'background-color':'yellow'}">进入首页</view>            </swiper-item>        </swiper>        <text :style="{color:'red','font-weight':200}">这是一个sssH1</text>    </view></template><script>    export default {        data() {            return {                windowHeight: '603px'  //定义手机屏幕高度值变量            }        },        onLoad() {            var _me = this;            uni.getSystemInfo({//获取手机屏幕高度信息，让swiper的高度和手机屏幕一样高                success: function(res) {                    console.log(res.model);                    console.log(res.pixelRatio);                    console.log(res.windowWidth);                    console.log(res.windowHeight);//这里是手机屏幕高度                    console.log(res.language);                    console.log(res.version);                    console.log(res.platform);                    _me.windowHeight = res.windowHeight + 'px';                    console.log('手机屏幕高度为' + _me.windowHeight);                }            });        },        methods: {            animationfinish(e) {                console.log(JSON.stringify(e.detail.current));                //判断到最后一张后，自动转向进入首页                if (e.detail.current == 3) {                    console.log('动画已经播放结束');                    setTimeout(function() {                        uni.redirectTo({                            url: '/pages/main/main'                        });                    }, 1000)                }            }        }    }</script><style>    .swiper {        width: 100%;        /*     height: 100vw; */        /* background: red; */    }</style>