数据类型检测
请看这篇数据类型检测
渐变色背景生成器
html
<!DOCTYPE html><html lang="en"> <head> <meta charset="UTF-8" /> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <link rel="stylesheet" href="styles.css" /> <title>Gradient Generator</title> </head> <body> <div class="controls"> <input id="color1" type="color" name="color1" value="#00dbde" /> <input id="color2" type="color" name="color2" value="#fc00ff" /> </div> <div class="gradient"></div> <script src="index.js"></script> </body></html>css
/* 注意这里定义的 CSS 变量，它们会用于生成渐变色背景 */:root { --color1: #00dbde; --color2: #fc00ff;}body { width: 100vw; height: 100vh; overflow: hidden; display: flex; flex-direction: column; justify-content: center; align-items: center; background: #222;}.controls { width: 500px; height: 100px; display: flex; justify-content: space-between;}input[type="color"] { -webkit-appearance: none; border: none; width: 60px; height: 60px; border-radius: 5px;}input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; margin: 0;}input[type="color"]::-webkit-color-swatch { border: none; border-radius: 5px; transform: scale(1.1);}.gradient { width: 500px; height: 500px; border-radius: 5px; background: linear-gradient(45deg, var(--color1), var(--color2));}js
const inputs = document.querySelectorAll(".controls input");/** * 上面已经选取了两个取色器 * 请添加相应的 JS 事件处理函数并绑定到合适的事件监听器上（提示：change 事件） * 这样我们就可以用取色器选取颜色来生成下方的渐变色背景啦 * */ let root=document.querySelector(":root");inputs[0].addEventListener('change',function(){ root.style.setProperty("--color1", this.value);console.log(this.value);},false)inputs[1].addEventListener('change',function(){ root.style.setProperty("--color2", this.value);console.log(this.value); },false)// console.log(inputs[0])// console.log(inputs[0])水果叠叠乐
看这篇：水果叠叠乐
element-ui 组件二次封装
就考了这个知识点 label 的值与value的值相同则会被选定。 label绑定的值就是Radio 的 value。我这里选定label与日期绑定。也可以和地址绑定，仔细观察数据。可以发现每一行都是不一样的。然后给radio绑定了一个change事件。通过与这个事件绑定的方法使得label 的值与value的值一致。一致则被选中
<template> <div class="main"> <el-table ref="singleTable" highlight-current-row :data="tableData" stripe border style="width: 100%" > <el-table-column label="单选" width="80"> <template slot-scope="scope"> <el-radio :label=scope.row.date v-model="currentRow" @change="changeRadio(scope.row)" ></el-radio> </template> </el-table-column> <el-table-column label="日期" width="180"> <template slot-scope="scope"> <span style="margin-left: 10px">{{ scope.row.date }}</span> </template> </el-table-column> <el-table-column prop="name" label="姓名" width="180"> </el-table-column> <el-table-column prop="address" label="地址"> </el-table-column> </el-table> <div class="tools"> <el-button @click="setCurrent(tableData[1])">选中第二行</el-button> <el-button @click="setCurrent()">取消选择</el-button> </div> </div></template><script>module.exports = { props: { tableData: { type: Array, default: () => [], }, }, data() { return { currentRow: null, }; }, methods: { setCurrent(row) { console.log(this.$refs.singleTable.setCurrentRow); this.$refs.singleTable.setCurrentRow(row); // 设置当前选中行 }, changeRadio(row){ //console.log(row); this.currentRow=row.date } },};</script><style scoped>.main { width: 60%; margin: 0 auto;}.tools { margin-top: 20px; text-align: center;}</style>http应用
就是基础的node.js
// TODO: 待补充代码const http=require('http')const server =http.createServer()server.on('request',function(req,res){ console.log('访问成功');})server.listen(8080,function(){ console.log('8080启动成功');})新课上线啦
写完这个题我真的明白了屎山是如何造出来的。
这题没什么好讲的,就是根据它提供的参数去实现效果就行啦,纯纯切图仔。但是我写的还是很乱的，css样式有许多重复的部分，不够整洁，并且在设计结构的时候没有考虑好就直接写了。最好的是在下面那一层在包一个div，免得里面的子元素一直需要使用left：360px。所以我觉得写的是屎山 。仅供参考
css
/* TODO：待补充代码 */* { margin: 0;}.head { height: 500px; width: 1920; background: url("../images/bg.png") no-repeat;}#img1 { margin-top: 100px; margin-bottom: 61px; margin-left: 520px; margin-right: 520px;}.span1 { font-family: PingFangSC-Medium; font-size: 18px; color: #333333; letter-spacing: 0; margin-top: 13px; display: inline-block;}.span2 { font-family: PingFangSC-Semibold; font-size: 18px; color: #1E5EF5; letter-spacing: 0; text-align: justify; line-height: 18px; font-weight: 600; display: inline-block;}/* 手指 */.shouz { font-family: PingFangSC-Semibold; font-size: 20px; color: #1E5EF5; line-height: 20px; font-weight: 600; margin-left: 10px;}.erweima { width: 84px; height: 84px; margin-top: 18px; position: absolute; right: 169px; top: 18px;}.main { background: #F8FAFB; position: relative; width: 1920px; height: 1197px;}.div1 { background-image: url("../images/small-bg.png"); width: 1200px; height: 120px; position: absolute; top: -60px; left: 360px; /* margin-left: 360px; margin-top: 440px; */}.div1_1 { margin-left: 174px; margin-top: 34px; /* top: -34px; margin-left: 360px; */}.course { font-family: PingFangSC-Semibold; font-size: 26px; color: #1E5EF5; letter-spacing: 0; line-height: 26px; font-weight: 600; text-align: center; position: absolute; left: 908px; top: 120px;}.course::after { top: 128px; margin-left: 18.94px; height: 10.67px; width: 16.06px; background: url("../images/right.png") no-repeat; content: ''; display: inline-block;}.course::before { top: 128px; margin-right: 18.94px; height: 10.67px; width: 16.06px; background: url("../images/left.png") no-repeat; content: ''; display: inline-block;}.div2 { width: 1200px; height: 456px; position: absolute; left: 360px; top: 181px; background: #FFFFFF; box-shadow: 0px 2px 10px 0px rgba(30, 94, 245, 0.08); border-radius: 10px;}.day { float: left; width: 390px; height: 211px; margin-top: 48px; overflow: hidden;}.div2_1 { margin-left: 200px; margin-right: 24px;}.title { background: #1E5EF5; border-radius: 8px 8px 0px 0px; font-family: PingFangSC-Medium; font-size: 18px; color: #FFFFFF; letter-spacing: 0; /* text-align: center; */ line-height: 40px; font-weight: 500; width: 100%; height: 40px; padding-left: 16px; overflow: hidden; display: block;}.aside { width: 76.2px; height: 137px; background: #E1EAFF; float: left;}.aside ul { list-style: none; /* ul默认的起始位置是为40px */ padding-inline-start: 0px;}.aside ul li { height: 32.75px; font-family: PingFangSC-Regular; font-size: 14px; color: #1E5EF5; letter-spacing: 0; line-height: 32.75px; font-weight: 400; text-align: center;}.list { background: #F5F8FF; width: 313.8px; height: 137px; float: left;}ul { list-style: none; /* ul默认的起始位置是为40px */ padding-inline-start: 0px;} ul li { margin-left: 12.39px; height: 32.75px; font-family: PingFangSC-Regular; line-height: 32.75px; font-weight: 400; font-family: PingFangSC-Regular; font-size: 14px; color: #333333; letter-spacing: 0; line-height: 32.75px; font-weight: 400;}.footer{ width: 390px; height: 40px; background: #FFF7F1; border-radius: 0px 0px 9.5px 9.5px; margin-top: 137px;}.img11{ margin-top: 9px;}.sp5{ display: inline-block; font-family: PingFangSC-Regular; font-size: 14px; color: #333333; letter-spacing: 0; margin-top: 13px; font-weight: 400; text-align: center; }.foot{ width: 804px; height: 106px; background-color: pink; position: absolute; top: 488px; left: 560px; }.foot .title{ padding-left: 0px;}.bys{ width: 68px; height: 22px; position:absolute; right: 312px; bottom: 92px; }.aside1{ width: 76.2px; height: 69px; background: #E1EAFF; float: left;}.list1 { background: #F5F8FF; width:727.8px; height: 69px; float: left;}html 页面
<!DOCTYPE html><html lang="en"> <head> <meta charset="UTF-8" /> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <title>新课上线啦</title> <link rel="stylesheet" href="css/style.css" /> </head> <body> <div class="head"> <img src="./images/word.png" alt="" id="img1"> </div> <div class="main"> <div class="div1"> <div class="div1_1"> <img src="./images/shouzhi.png" alt="" style="width: 18px;height: 22px;"><span class="shouz">扫码咨询</span><br> <span class="span1">购买成功后，一定要扫码添加班主任，获得</span><span class="span2">Java进阶资料</span><span class="span1">，并加入学习群，不错过直播课！</span> </div> <img src="./images/erweima.png" alt="" class="erweima"> </div> <span class="course">课程大纲</span> <div class="div2"> <div class="div2_1 day"> <span class="title">第一天 开发原则及设计模式</span> <div class="aside"> <ul> <li>第一讲</li> <li>第二讲</li> <li>第三讲</li> <li>第四讲</li> </ul> </div> <div class="list"> <ul> <li>七大开发原则说明 </li> <li>二十三种设计模式分类</li> <li>安全懒汉&不安全懒汉&饿汉单例模式</li> <li>枚举类单例&静态内部类模式</li> </ul> </div> <div class="footer"> <img class="img11" src="./images/tz.png" alt="" width="43px" height="22px"> <span class="sp5">设计一个实用单例类</span> </div> </div> <div class="day"> <span class="title">第二天 实用设计模式</span> <div class="aside"> <ul> <li>第一讲</li> <li>第二讲</li> <li>第三讲</li> </ul> </div> <div class="list"> <ul> <li>工厂& 代理&静态代理模式</li> <li>简单静态& 抽象工厂</li> <li>JDK动态代理模式与 spring 源码解析</li> </ul> </div> <div class="footer"> <img class="img11" src="./images/tz.png" alt="" width="43px" height="22px"> <span class="sp5">设计一个实用单例类</span> </div> </div> </div> <div class="foot"> <div> <span class="title">   第三天 手把手带你搞懂 “校招求职面试那些事儿”</span> <img src="./images/bq-bys.png" alt="" class="bys"> <div class="aside1"> <ul> <li>第一讲</li> <li>第二讲</li> </ul> </div> <div class="list1"> <ul> <li>“设计一个工具实现Spring框架”作业点评</li> <li>选择比努力更重要的时代</li> </ul> </div> </div> </div> </div> </body></html>成语学习
思路：
定义一个cnt作为计数，题目其实已经说明白了，点击是从左到右进行的，所以没点一次就cnt+1就好了，那么当cnt大于4时，点击就不能够生效了，必须得使用清除方法来清除一个词才可以，那么这时候我们可以进入clear方法去打印一下那个参数i，此时的参数就是点击的坐标，那么正好我们可以使用这个坐标赋值给cnt，因为我们也需要对数组进行赋值。尤其需要注意的 是不能改变data函数中定义的idiom：[“”,“”,“”,“”,“”]。不要试图清空为idiom：[]。因为这会改变上面的结构。如何设置点击的词加入到idiom中呢。其实我是从哪个clear中得到思路的，因为他这里将其设为初始值”” 就是一个空字符串。那么我也可以把它设为我点击的词呀。我的代码还是有很多值得优化的地方。遍历可以考虑使用some或者every
every()是对数组中每一项运行给定函数，如果该函数对每一项返回true,则返回true。
some()是对数组中每一项运行给定函数，如果该函数对任一项返回true，则返回true。
some一直在找符合条件的值，一旦找到，则不会继续迭代下去。
every从迭代开始，一旦有一个不符合条件，则不会继续迭代下去。
some和every的用法
var arr = [ 1, 2, 3, 4, 5, 6 ]; console.log( arr.some( function( item, index, array ){ console.log( 'item=' + item + ',index='+index+',array='+array ); return item > 3; })); console.log( arr.every( function( item, index, array ){ console.log( 'item=' + item + ',index='+index+',array='+array ); return item > 3; }));题解
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <script src="./js/vue.min.js"></script> <title>成语学习</title> <style> * { margin: 0; padding: 0; } #app { margin: auto; } .title { text-align: center; padding: 10px 0; background-image: linear-gradient(-225deg, #69EACB 0%, #EACCF8 48%, #6654F1 100%); } .idiom_tips_box { text-align: center; margin: 30px 0; } .detailed_description { border-radius: 20px; padding: 15px 30px; border-radius: 4px; font-size: 16px; } .idiom_box { display: flex; align-items: center; justify-content: center; margin: 20px auto; } .item_box { height: 120px; width: 120px; display: flex; align-items: center; justify-content: center; font-size: 50px; border-radius: 8px; margin-right: 10px; background: rgb(248, 243, 243); border: 1px solid #999 } .optional_words_region { margin: auto; margin-top: 50px; text-align: center; display: flex; flex-wrap: wrap; } .words { display: block; width: 50px; height: 50px; margin: 5px; background: orange; border: 1px solid black; border-radius: 4px; font-size: 40px; cursor: pointer; display: flex; align-items: center; justify-content: center; } .words:hover { background: rgb(247, 113, 3); color: rgb(248, 243, 243); } .confirm_btn_box { margin: 10px auto; display: flex; justify-content: center; cursor: pointer; } .confirm_btn { margin-top: 30px; border-radius: 8px; padding: 10px 30px; color: white; background: #409eff } </style></head><body> <div id="app"> <div class="title">成语学习</div> <div class="idiom_tips_box"> <span class="detailed_description">提示：{{tip}}</span> </div> <div class="idiom_box"> <div class="item_box" v-for="item,index in idiom" @click="clear(index)">{{item}}</div> </div> <div :style="result == null " /> 题解
<!DOCTYPE html><html lang="zh-CN" style="height: 100%"><head> <meta charset="UTF-8" /> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <title>学海无涯</title> <!-- --> <script src="./js/echarts.min.js"></script> <link rel="stylesheet" href="./css/style.css" /> <script src="./js/axios.min.js"></script></head><body style="height: 100%; margin: 0"> <div class="container"> <div class="tabs"> <input type="radio" id="week" name="tabs" checked onclick="getData(id)" /> <label class="tab" for="week">周</label> <input type="radio" id="month" name="tabs" onclick="getData(id)" /> <label class="tab" for="month">月</label> <span class="glider"></span> </div> </div> <div id="container" style="width: 80%; height: 80%; margin: 40px auto 0"></div> <script type="text/javascript"> var dom = document.getElementById("container"); var myChart = echarts.init(dom, null, { renderer: "canvas", useDirtyRect: false, }); window.onload = this.getData("week") var datalist1 = [] var option; option = { title: { text: "学习时长统计图", }, legend: {}, xAxis: { // x 轴数据 type: "category", data: [1,2,3,4,5,6,7], }, yAxis: { type: "value", name: "分钟", axisLabel: { formatter: "{value}", }, }, series: [ // y 轴数据 { data: [7,8,9,10,11,12,13], type: "bar", }, ], }; if (option && typeof option === "object") { // 设置图表 myChart.setOption(option); } window.addEventListener("resize", myChart.resize); // TODO:待补充代码 function getData(id) { //console.log(id); this.axios.get('./data.json').then(res => { console.log(res); if (res.status == 200) { let datalist = res.data.data if (id == "week") { this.datalist1 = [] let sum = 0; datalist.er.forEach((item, index) => { sum += item; if ((index + 1) % 7 == 0) { this.datalist1.push(sum); sum = 0; } }); datalist.san.forEach((item, index) => { sum += item; // console.log(datalist1); if ((index + 1) % 7 == 0) { this.datalist1.push(sum); sum = 0; } if (index == 30) { this.datalist1.push(sum); sum = 0; } }); this.option.xAxis.data = ["2月第1周", "2月第2周", "2月第3周", "2月第4周", "3月第1周", "3月第2周", "3月第3周", "3月第4周", "3月第5周"] this.option.series[0].data = this.datalist1 myChart.setOption(option,true); } else if (id == "month") { this.datalist1 = [] let sum = 0; datalist.er.forEach((item, index) => { sum += item; } ); this.datalist1.push(sum) sum = 0; datalist.san.forEach((item, index) => { sum += item; } ); this.datalist1.push(sum) sum = 0; this.option.xAxis.data = ["2月", "3月"] this.option.series = [ // y 轴数据 { data: this.datalist1, type: "bar", }, ], console.log(option.series[0].data); myChart.setOption(option, true); } } }) } </script></body></html>
逃离二向箔
emmm没写，因为我不会。群里面大佬给了题解图片我都看不明白。这题考的是promise的并发处理。可以先看看这份方面的知识再去写题。我先去学习新知识啦。学习新知识，争做新青年！！学完再来给题解
梅楼封的一天
其实在这个题我写的复杂了。我使用了正则来匹配电话号码，还考虑了电话号码前面或者是后面有空格的情况。但是在群里和大佬们讨论的时候发现好像这个题的测试用例很简单。只需要判定电话号码是1开头的就好了，然后把中间的几个脱敏就OK了。你们可以试试。然后需要注意replace只能替换一次，所以得使用while循环，并且replace是返回一个新的字符串，所以需要定义一个新的字符串来接收它。然后再把新的字符串赋值给老的字符串继续循环。
题解
/** * @description: * @param {*} str * @param {*} rule * @param {*} symbol * @param {*} dealPhone * @return {*} */const toDesensitization = (str, rule, symbol = "*", dealPhone = true) => { if (str=='') { return null; } else if (rule==null) { return str; } else { var ids = []; let newStr = ""; if(typeof rule=="object"){ rule.forEach(item=> { while (str.indexOf(item) != -1) { ids.push(str.indexOf(item)) let cnt = item.length; let sign = "" for (let i = 0; i < cnt; i++) { sign += symbol; } newStr = str.replace(item, sign); str = newStr; } }); }else{ // console.log("zheli"); while (str.indexOf(rule) != -1) { ids.push(str.indexOf(rule)) let cnt = rule.length; let sign = "" for (let i = 0; i < cnt; i++) { sign += symbol; } newStr = str.replace(rule, sign); str = newStr; } } if (dealPhone) { let arr=str.match(/((((13[0-9])|(15[^4])|(18[0,1,2,3,5-9])|(17[0-8])|(147))\d{8})|((\(\d{3,4}\)|\d{3,4}-|\s)?\d{7,14}))?/g); var flag = true; let newstr="" arr.forEach((item, index) => { if (item.length>1) { let t=item.length-11; let ss = ""; if (!flag) { index = index + 10; } //console.log(index); for (let i = 0; i < 5; i++) { ss += str[index + 3+t + i] // console.log(str[index+i+3]); } //console.log(ss); newstr = str.replace(ss, "*****") str = newstr //console.log(str); flag = false; } }) } } let obj={}; obj={ ids:ids, newStr:str } return obj //console.log("******", obj);};// toDesensitization("放假了电视剧理发店，杰弗里斯寄过来的15356895642结果劳动竞赛", "发")module.exports = toDesensitization;