js成语点击验证 javascript实现前端成语点击验证
Jeslie-He 人气:2首先先看看效果图吧
需求分析:
1.随机生成成语,成语的位置随机分布,并渲染在页面上。
2.点击文字的有效区域,依次点击,并将点击的文字依次保存在数组中,然后和之前生成的成语进行比较,如果相等,则验证成功,否则验证失败,重新刷新页面。
代码实现:
首先html的布局
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <link rel="stylesheet" href="./index.css" > <title>点击成语验证</title> </head> <body> <div class="idiom_box"> <div class="bg_img"></div> </div> <div class="verify_box"></div> <script src="./jquery-1.11.0.min.js"></script> <script src="./index.js"></script> </body> </html>
CSS样式:
*{ margin: 0; padding: 0; } body{ background-color: #E6E6FA; /* background-size: 100%; */ } .idiom_box{ width: 400px; height: 200px; border: 2px solid #00FFFF; border-radius: 10px; position: relative; margin: 50px auto 0; background-size: 100%; background-repeat: no-repeat; transition: all 2s; overflow: hidden; } .bg_img{ width: 100%; height: 100%; background-image: url(./photo.jpg); background-size: cover; } .idiom_box .idiom_content{ width: 200px; height: 100px; position: absolute; /* background-color: red; */ } .idiom_content span{ font-size: 40px; position: absolute; z-index: 4; color: #EBEBEB; font-weight: bold; transition: all 2s; cursor: pointer; } .idiom_content span:hover{ color: #E0FFFF; font-size: 50px; transition: all 1.5s ease; } .verify_box{ width: 400px; height: 40px; margin: 10px auto 0; border: 1px solid greenyellow; text-align: center; font-size: 26px; line-height: 40px; color: #C71585; font-weight: bold; transition: all 2s; border-radius: 10px; background-color: white; } .verify_box span{ color: #FF7F00; transition: all 2s; }
JS:
//创建成语 let idiomArr = ["新春快乐", "阖家快乐", "恭贺新禧", "万事如意", "张灯结彩", "恭喜发财", "假期愉快", "今晚吃鸡"]; //获取随机打乱的成语 let randomIdiom = idiomArr[Math.floor(Math.random() * (idiomArr.length - 1))]; // console.log(randomIdiom) $('.verify_box').html(`请依次点击: <span>${randomIdiom}</span>`) //创建位置的数组 let placeArr = [ { left: '0px', top: '0px' }, { left: '200px', top: '0px' }, { left: '0px', top: '100px' }, { left: '200px', top: '100px' } ] //随机打乱位置数组 placeArr.sort(function () { return Math.random() - 0.5 }) // console.log(placeArr) //遍历成语并创建标签 for (i in randomIdiom) { let left = Math.floor(Math.random() * 150); let top = Math.floor(Math.random() * 50); // console.log(left,top) //创建存放span的div对象 divs = $('<div class="idiom_content"></div>') //给div定位 divs.css({ left: placeArr[i].left, top: placeArr[i].top }) //创建储存文字的span标签 span = $(`<span>${randomIdiom[i]}</span>`) //随机span的位置 span.css({ left: left + 'px', top: top + 'px' }); divs.append(span); $('.idiom_box').append(divs) } //事件委托 var verifyArr = []; var str = null; var timer = null; var idiomBox = document.querySelector('.idiom_box'); clearTimeout(timer) idiomBox.onclick = function (e) { e.target ? e.srcElement : e.target; if (e.target.tagName == 'SPAN') { // console.log(e.target.innerText); verifyArr.push(e.target.innerText); str = verifyArr.join('') if (str.length === randomIdiom.length) { if (str == randomIdiom) { // alert('验证成功!!') $('.verify_box').html('验证成功') } else { $('.verify_box').html('验证失败') timer = setTimeout(() => { location.reload() }, 1000); } } } else { alert('请点击有效区域') } }
验证成功的效果:
点击区域不对的效果:
验证失败的效果:
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