以下代码不一定都是本人原创，很多都是借鉴参考的（模仿是第一生产力嘛），有些已忘记出处了。以下分享给大家，供学习参考！欢迎收藏补充，说不定哪天你就用上了！ 一、第一种效果 [图片] [代码]//index.wxml <view class="zr"> <view class='user_box'> <view class='userInfo'> <open-data type="userAvatarUrl"></open-data> </view> <view class='userInfo_name'> <open-data type="userNickName"></open-data> , 欢迎您 </view> </view> <view class="water"> <view class="water-c"> <view class="water-1"> </view> <view class="water-2"> </view> </view> </view> </view> //index.wxss .zr { color: white; background: #4cb4e7; /*#0396FF*/ width: 100%; height: 100px; position: relative; } .water { position: absolute; left: 0; bottom: -10px; height: 30px; width: 100%; z-index: 1; } .water-c { position: relative; } .water-1 { background: url("data:image/svg+xml;base64,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") repeat-x; background-size: 600px; -webkit-animation: wave-animation-1 3.5s infinite linear; animation: wave-animation-1 3.5s infinite linear; } .water-2 { top: 5px; background: url("data:image/svg+xml;base64,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") repeat-x; background-size: 600px; -webkit-animation: wave-animation-2 6s infinite linear; animation: wave-animation-2 6s infinite linear; } .water-1, .water-2 { position: absolute; width: 100%; height: 60px; } .back-white { background: #fff; } @keyframes wave-animation-1 { 0% { background-position: 0 top; } 100% { background-position: 600px top; } } @keyframes wave-animation-2 { 0% { background-position: 0 top; } 100% { background-position: 600px top; } } .user_box { display: flex; z-index: 10000 !important; opacity: 0; /* 透明度*/ animation: love 1.5s ease-in-out; animation-fill-mode: forwards; } .userInfo_name { flex: 1; vertical-align: middle; width: 100%; margin-left: 5%; margin-top: 5%; font-size: 42rpx; } .userInfo { flex: 1; width: 100%; border-radius: 50%; overflow: hidden; max-height: 50px; max-width: 50px; margin-left: 5%; margin-top: 5%; border: 2px solid #fff; } [代码] 二、第二种效果 [图片] [代码]//index.wxml <view class="waveWrapper waveAnimation"> <view class="waveWrapperInner bgTop"> <view class="wave waveTop" style="background-image: url('https://s2.ax1x.com/2019/09/26/um8g7n.png')"></view> </view> <view class="waveWrapperInner bgMiddle"> <view class="wave waveMiddle" style="background-image: url('https://s2.ax1x.com/2019/09/26/umGZ38.png')"></view> </view> <view class="waveWrapperInner bgBottom"> <view class="wave waveBottom" style="background-image: url('https://s2.ax1x.com/2019/09/26/umGuuQ.png')"></view> </view> </view> //index.wxss .waveWrapper { overflow: hidden; position: absolute; left: 0; right: 0; height: 300px; top: 0; margin: auto; } .waveWrapperInner { position: absolute; width: 100%; overflow: hidden; height: 100%; bottom: -1px; background-image: linear-gradient(to top, #86377b 20%, #27273c 80%); } .bgTop { z-index: 15; opacity: 0.5; } .bgMiddle { z-index: 10; opacity: 0.75; } .bgBottom { z-index: 5; } .wave { position: absolute; left: 0; width: 500%; height: 100%; background-repeat: repeat no-repeat; background-position: 0 bottom; transform-origin: center bottom; } .waveTop { background-size: 50% 100px; } .waveAnimation .waveTop { animation: move-wave 3s; -webkit-animation: move-wave 3s; -webkit-animation-delay: 1s; animation-delay: 1s; } .waveMiddle { background-size: 50% 120px; } .waveAnimation .waveMiddle { animation: move_wave 10s linear infinite; } .waveBottom { background-size: 50% 100px; } .waveAnimation .waveBottom { animation: move_wave 15s linear infinite; } @keyframes move_wave { 0% { transform: translateX(0) translateZ(0) scaleY(1) } 50% { transform: translateX(-25%) translateZ(0) scaleY(0.55) } 100% { transform: translateX(-50%) translateZ(0) scaleY(1) } } [代码] 三、第三种效果 [图片] [代码]//index.wxml <view class="container"> <image class="title" src="https://ftp.bmp.ovh/imgs/2019/09/74bada9c4143786a.png"></image> <view class="content"> <view class="hd" style="transform:rotateZ({{angle}}deg);"> <image class="logo" src="https://ftp.bmp.ovh/imgs/2019/09/d31b8fcf19ee48dc.png"></image> <image class="wave" src="wave.png" mode="aspectFill"></image> <image class="wave wave-bg" src="wave.png" mode="aspectFill"></image> </view> <view class="bd" style="height: 100rpx;"> </view> </view> </view> //index.wxss image{ max-width:none; } .container { background: #7acfa6; align-items: stretch; padding: 0; height: 100%; overflow: hidden; } .content{ flex: 1; display: flex; position: relative; z-index: 10; flex-direction: column; align-items: stretch; justify-content: center; width: 100%; height: 100%; padding-bottom: 450rpx; background: -webkit-gradient(linear, left top, left bottom, from(rgba(244,244,244,0)), color-stop(0.1, #f4f4f4), to(#f4f4f4)); opacity: 0; transform: translate3d(0,100%,0); animation: rise 3s cubic-bezier(0.19, 1, 0.22, 1) .25s forwards; } @keyframes rise{ 0% {opacity: 0;transform: translate3d(0,100%,0);} 50% {opacity: 1;} 100% {opacity: 1;transform: translate3d(0,450rpx,0);} } .title{ position: absolute; top: 30rpx; left: 50%; width: 600rpx; height: 200rpx; margin-left: -300rpx; opacity: 0; animation: show 2.5s cubic-bezier(0.19, 1, 0.22, 1) .5s forwards; } @keyframes show{ 0% {opacity: 0;} 100% {opacity: .95;} } .hd { position: absolute; top: 0; left: 50%; width: 1000rpx; margin-left: -500rpx; height: 200rpx; transition: all .35s ease; } .logo { position: absolute; z-index: 2; left: 50%; bottom: 200rpx; width: 160rpx; height: 160rpx; margin-left: -80rpx; border-radius: 160rpx; animation: sway 10s ease-in-out infinite; opacity: .95; } @keyframes sway{ 0% {transform: translate3d(0,20rpx,0) rotate(-15deg); } 17% {transform: translate3d(0,0rpx,0) rotate(25deg); } 34% {transform: translate3d(0,-20rpx,0) rotate(-20deg); } 50% {transform: translate3d(0,-10rpx,0) rotate(15deg); } 67% {transform: translate3d(0,10rpx,0) rotate(-25deg); } 84% {transform: translate3d(0,15rpx,0) rotate(15deg); } 100% {transform: translate3d(0,20rpx,0) rotate(-15deg); } } .wave { position: absolute; z-index: 3; right: 0; bottom: 0; opacity: 0.725; height: 260rpx; width: 2250rpx; animation: wave 10s linear infinite; } .wave-bg { z-index: 1; animation: wave-bg 10.25s linear infinite; } @keyframes wave{ from {transform: translate3d(125rpx,0,0);} to {transform: translate3d(1125rpx,0,0);} } @keyframes wave-bg{ from {transform: translate3d(375rpx,0,0);} to {transform: translate3d(1375rpx,0,0);} } .bd { position: relative; flex: 1; display: flex; flex-direction: column; align-items: stretch; animation: bd-rise 2s cubic-bezier(0.23,1,0.32,1) .75s forwards; opacity: 0; } @keyframes bd-rise{ from {opacity: 0; transform: translate3d(0,60rpx,0); } to {opacity: 1; transform: translate3d(0,0,0); } } [代码] wave.png（可下载到本地） [图片] 在这个基础上，再加上js的代码，即可实现根据手机倾向，水波晃动的效果 wx.onAccelerometerChange(function callback) 监听加速度数据事件。 [图片] [代码]//index.js Page({ onReady: function () { var _this = this; wx.onAccelerometerChange(function (res) { var angle = -(res.x * 30).toFixed(1); if (angle > 14) { angle = 14; } else if (angle < -14) { angle = -14; } if (_this.data.angle !== angle) { _this.setData({ angle: angle }); } }); }, }); [代码] 四、第四种效果 [图片] [代码]//index.wxml <view class='page__bd'> <view class="bg-img padding-tb-xl" style="background-image:url('http://wx4.sinaimg.cn/mw690/006UdlVNgy1g2v2t1ih8jj31hc0p0qej.jpg');background-size:cover;"> <view class="cu-bar"> <view class="content text-bold text-white"> 悦拍屋 </view> </view> </view> <view class="shadow-blur"> <image src="https://raw.githubusercontent.com/weilanwl/ColorUI/master/demo/images/wave.gif" mode="scaleToFill" class="gif-black response" style="height:100rpx;margin-top:-100rpx;"></image> </view> </view> //index.wxss @import "colorui.wxss"; .gif-black { display: block; border: none; mix-blend-mode: screen; } [代码] 本效果需要引入ColorUI组件库

最近在 getWXACodeUnlimit   这个获取二维码的接口上遇到了巨坑 接口文档如下 请求地址[代码]POST https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token=ACCESS_TOKEN[代码] [图片] 文档上的请求参数上有  access_token 字段 然后 我post 了 带 access_token 的JSON [图片] 返回 数据格式错误 [图片] 没错啊，我明明是按文档走的？？？？ 我折腾了几个小时，最后去掉 access_token 这个字段 [图片] [图片] 去掉 access_token 后，接口就能成功调用了，  能返回图片了？！！ 说明这个接口小程序文档居然是错的 access_token 这个字段不能带上 误导我，让我白白浪费时间 腾讯写接口文档的用心点行吗！！！我被你们的文档坑惨了！！

众所周知，图片等一些盒子都可以利用opacity属性来设置不透明度，但是前两天我朋友忽然给我一个截图，截图效果如下 [图片] 图中红框圈住的位置图片或者说摄像头采集的画面出现了渐变到透明，可以清楚的看到可以看到后面小哥的胳膊，然后问我如何实现这种效果，这下把我难住了（呵 天天给我出难题），我开始在个大论坛开始寻找解决方案； 忽然在前天，日常逛论坛时看到一个文字投影的效果，而后忽然灵机一动就想，能不能变相的实现前两天我想要的那种效果，于是乎赶紧打开编辑器试了下，发现确实可以把我想要的图片或者盒子进行投影并给投影设置上渐变颜色及透明，结果出来了，只不过出来的效果他反了 [图片] 随后利用transform: rotate(180deg);控制他使出倒挂金钩此等功夫，果然不负所望，成功翻转过来 [图片] 但是我想要的只有投影，因为我想要效果目前只能用投影去实现去控制，但是他却本体与投影共同出现了，我不想看到本体，太丑了，怎么办呢，那就给他装个position: absolute; top给他爸爸装个position: relative; overflow: hidden;让他滚出~，结果显而易见，我胜利了； [图片] 我得到了我想要的结果，为了验证结果，我用文字放在他的下方 看看是否透明； [图片] 我真的成功了，哈哈（小开心一会儿），为了再次确认他真是的图片实现了渐变透明，我把渐变的透明度改成了1（也就是不透明） [图片] 事实证明，我真的成功了！！！ 吹完牛皮，赶紧附上完成代码： css： [图片] html： [图片] 最终效果图： [图片] 呃…其实核心就是利用投影来完成的-webkit-box-reflect: below 0 linear-gradient(rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 1) 100%); https://www.w3cschool.cn/css3/box-reflect.html 当然 肯定有大佬在我之前发现这种实现方式，不过当时我找了很久都没找到实现方式的写法，想了想 就发出来吧，如果有什么不对的地方，或者有其他方式也可以实现同等效果的话 还劳请告知，在下多谢各位大佬了！！！

使用node环境，在vscode 工具中，创建 app.js 文件 ，代码如下，记得安装 npm install websocket 和 npm install http 模块 . 开启 websocket接口服务后，就可以去封装 官方提供的 wx.sendSocketMessage 等接口了。 [代码]const http = require("http"); const WebSocketServer = require("websocket").server; const httpServer = http.createServer((request, response) => { console.log("[" + new Date() + "] Received request for " + request.url); response.writeHead(404); response.end(); }); const wsServer = new WebSocketServer({ httpServer, autoAcceptConnections: true }); wsServer.on("connect", connection => { connection .on("message", message => { if (message.type === "utf8") { console.log(">> message content from client: " + message.utf8Data); connection.sendUTF(message.utf8Data); // 输出内容返回给前端接口调用 } }) .on("close", (reasonCode, description) => { console.log( "[" + new Date() + "] Peer " + connection.remoteAddress + " disconnected." ); }); }); httpServer.listen(8080, () => { console.log("[" + new Date() + "] Serveris listening on port 8080"); }); #小程序页面示例代码，请参考文档 const socketOpen = false const socketMsgQueue = [] wx.connectSocket({ // url: 'test.php', url ：“ws://localhost:8080/” }) wx.onSocketOpen(function (res) { socketOpen = true for (let i = 0; i < socketMsgQueue.length; i++) { sendSocketMessage(socketMsgQueue[i]) } socketMsgQueue = [] }) function sendSocketMessage(msg) { if (socketOpen) { wx.sendSocketMessage({ data: msg }) } else { socketMsgQueue.push(msg) } }[代码]

基本实现功能 1，小程序仿天猫超市大转盘 2，九宫格转盘抽奖 3，积分抽奖 4，抽到的积分随机生成 5，抽奖结果可以同步到服务器（小程序云开发后台） 老规矩先看效果图 [图片] 简单说一下实现原理. 我们借助js的定时器，来执行一个加法。比如我们设置一个上限300，每过一定时间执行一次，然后我们再做一个随机数，这个随机数不停的++，直到总数大于300.就代表抽奖结束。核心代码如下。 [代码] //开始抽奖 startGame: function() { if (this.data.isRunning) return this.setData({ isRunning: true }) var _this = this; var indexSelect = 0 var i = 0; var timer = setInterval(function() { indexSelect++; let randomNum = Math.floor(Math.random() * 10) * 10; //可均衡获取0到90的随机整数 i += randomNum; if (i > 300) { //去除循环 clearInterval(timer) //获奖提示 let jifen = 1; let selectNum = _this.data.indexSelect console.log("选号：" + selectNum ); if (selectNum===0) { jifen = 2; } else if (selectNum === 1) { jifen = 3; } else if (selectNum === 2) { jifen = 4; } else if (selectNum === 3) { jifen = 5; } else if(selectNum === 4) { jifen = 6; } else if(selectNum === 5) { jifen = 8; } else if (selectNum === 6) { jifen = 10; } wx.showModal({ title: '恭喜您', content: '获得了' + jifen + "积分", showCancel: false, //去掉取消按钮 success: function(res) { if (res.confirm) { _this.setData({ isRunning: false }) } } }) } indexSelect = indexSelect % 8; _this.setData({ indexSelect: indexSelect }) }, (200 + i)) } [代码] 完整源码可以加我微信，如果有关于小程序的问题，可以加我微信2501902696（备注小程序）

最近微信突然改了wx.getUserInfo()接口的获取规则，花了点时间研究了下，整理了一个比较通用的解决方案。 话不多说直接上代码： wx.getUserInfo({ success: function (userResult) {    //之前获取用户信息成功的逻辑代码 }, fail: function (userError) {    //这里的逻辑判断可能有人会好奇，为啥要有的加冒号，通过测试发现，开发工具上微信推送的消息是不带冒号的。而实际使用环境中微信推送的是带冒号的，所以就都写了。 if (userError.errMsg == 'getUserInfo:fail scope unauthorized' || userError.errMsg == 'getUserInfo:fail auth deny' || userError.errMsg == 'getUserInfo:fail:scope unauthorized' || userError.errMsg == 'getUserInfo:fail:auth deny' ){ wx.navigateTo({ url: '/pages/auth/auth' }) }else{     //之前获取用户信息失败的逻辑代码 } }, }); }, fail: function (loginError) { }, }); 然后再加个页面就好了，github地址：https://github.com/PhoenixTreeWD/wxauth 这个方案只是为了做之前老接口的兼容处理的，新写的项目并不建议，个人觉得小程序授权这个操作，应该放到合理的位置调用，而不是一开始就调用。

小程序使用async/await 来处理异步 regeneratorRuntime     https://github.com/facebook/regenerator/blob/master/packages/regenerator-runtime/runtime.js 详细看代码片段 https://developers.weixin.qq.com/s/FlIPCOmw7P3c //引入编译模块 const regeneratorRuntime =require("../libs/regeneratorRuntime.js")   const promisify = require('../libs/promisify.js'); //微信 API，转成返回 Promise 的接口 云开发API的有Promise 风格 不需要再转了 const getUserInfo= promisify(wx.getUserInfo); const login = promisify(wx.login); wx.cloud.init();   Page({ data: {   }, onLoad: async function () {   console.log(this)   const user = await getUserInfo(); console.log("onLoad user",user) const code = await login(); console.log("onLoad code",code);   const res = await wx.cloud.database().collection('todos').where({ _openid: 'xxx'  }).get(); console.log("onLoad res", res) }, onShow: async function(){ const user = await getUserInfo(); console.log("onshow", user)   } })