标题#j基础实现柱状图的创建
<!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>Document</title>
<style>
* {
margin: 0;
padding: 0;
}
.box {
display: flex;
width: 700px;
height: 300px;
border-bottom: 1px solid red;
border-left: 1px solid red;
margin: 50px auto;
justify-content: space-around;
align-items: flex-end;
text-align: center;
}
.box>div {
display: flex;
width: 50px;
background-color: pink;
flex-direction: column;
justify-content: space-between;
}
.box div span {
margin-top: -20px;
}
.box div h4 {
margin-bottom: -35px;
width: 70px;
margin-left: -10px;
}
</style>
</head>
<body>
</div>
<script>
//实现柱状图的创建
//在学完dom操作后更简单
//在弹出的输入中输入就会生成对应的柱状图
//思路在这里，需要不同的在代码里改你需要的值就好了
let arr = []
for (let i = 1; i <= 4; i++) {//要生成柱状图的数量
arr.push(prompt(`亲输入第${i}季度的数据`))
}
//生成横纵坐标
document.write(`<div class="box">`)
for (let i = 0; i < arr.length; i++) {
//遍历输出柱状图及相关的数据
document.write(`
<div style="height:${arr[i]}px">//模板字符串后面可以用dom替换
<span>${arr[i]}</span>
<h4>第${i+1}季度</h4>
</div>`)
}
document.write(`</div>`)
</script>
</body>
</html>
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