要求:
1.表格由专业班级学号1-10号同学的信息组成,包括:学号、姓名、
性别、二级学院、班级、专业、辅导员;
2.表格的奇数行字体为黑色,底色为白色;偶数行字体为白色,底色为黑色;
3.表格的每一行后有一个删除按钮,点击后会跳出提示弹窗,确认后删除该行的内容
,并且删除后上述的颜色规律保持不变:
4.表格的右上方有一个添加按钮,点击后跳出一个表单弹窗,可以
填加新的学生的信息。
原理:
白底与黑底:通过nthchild 2n和 2n-1来控制奇数行和偶数行
删除按钮:获取删除的元素,通过自定义属性与for循环拿到改行的序号,然后获取到父元素,删除掉这一行
添加按钮:新的信息弹窗先隐藏,鼠标点击后显示为块,里面为input 可以获取它的value值,¥{}与 波浪号下面的点并通过innerhtml使其以字符串的形式加到html中。通过删除这个元素来获取到其父元素并往里面加入
<!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>
</head>
<style>
* {
margin: 0;
padding: 0;
list-style: none;
text-decoration: none;
}
table {
margin-left: 400px;
}
#bigbox td {
width: 150px;
text-align: center;
}
#bigbox {
position: relative;
}
#bigbox tr:nth-child(2n) {
color: white;
background-color: black;
}
#bigbox tr:nth-child(2n-1) {
color: black;
background-color: white;
}
#add {
width: 100px;
font-weight: bolder;
height: 100px;
line-height: 100px;
text-align: center;
left: 1634px;
top: 0px;
bottom: 272px;
position: absolute;
font-size: 15px;
}
#table2 {
border: 10px solid red;
width: 300px;
height: 500px;
z-index: 10;
position: absolute;
left: 500px;
top: 200px;
background-color: aquamarine;
display: none;
}
#table2 td {
height: 50px;
}
#table2 tr:nth-child(8) {
display: flex;
align-items: center;
display: flex;
justify-content: center;
}
#table2 tr:nth-child(8) button {
margin-left: 8px;
width: 50px;
height: 50px;
}
</style>
<body>
<table border="1" id="bigbox">
<tr>
<td>学号</td>
<td>姓名</td>
<td>性别</td>
<td>二级学院</td>
<td>班级</td>
<td>专业</td>
<td>辅导员</td>
<td>删除键</td>
</tr>
<tr>
<td>22232301</td>
<td>王德发</td>
<td>男</td>
<td>计算机工程学院</td>
<td>222323</td>
<td>计算机科学与技术</td>
<td>阿迪是</td>
<td style="cursor: pointer;" class="deleter h">删除</td>
</tr>
<tr>
<td>22232302</td>
<td>小明</td>
<td>男</td>
<td>计算机工程学院</td>
<td>222323</td>
<td>计算机科学与技术</td>
<td>阿迪是</td>
<td style="cursor: pointer;" class="deleter h">删除</td>
</tr>
<tr>
<td>22232303</td>
<td>王飞</td>
<td>男</td>
<td>计算机工程学院</td>
<td>222323</td>
<td>计算机科学与技术</td>
<td>阿迪是</td>
<td style="cursor: pointer;" class="deleter h">删除</td>
</tr>
<tr>
<td>22232304</td>
<td>高飞钱</td>
<td>男</td>
<td>计算机工程学院</td>
<td>222323</td>
<td>计算机科学与技术</td>
<td>阿迪是</td>
<td style="cursor: pointer;" class="deleter h">删除</td>
</tr>
<tr>
<td>22232305</td>
<td>思想者</td>
<td>男</td>
<td>计算机工程学院</td>
<td>222323</td>
<td>计算机科学与技术</td>
<td>阿迪是</td>
<td style="cursor: pointer;" class="deleter h">删除</td>
</tr>
<tr>
<td>22232306</td>
<td>阿萨德了</td>
<td>男</td>
<td>计算机工程学院</td>
<td>222323</td>
<td>计算机科学与技术</td>
<td>阿迪是</td>
<td style="cursor: pointer;" class="deleter h">删除</td>
</tr>
<tr>
<td>22232307</td>
<td>米夏</td>
<td>男</td>
<td>计算机工程学院</td>
<td>222323</td>
<td>计算机科学与技术</td>
<td>阿迪是</td>
<td style="cursor: pointer;" class="deleter h">删除</td>
</tr>
<tr>
<td>22232308</td>
<td>马赛克</td>
<td>男</td>
<td>计算机工程学院</td>
<td>222323</td>
<td>计算机科学与技术</td>
<td>阿迪是</td>
<td style="cursor: pointer;" class="deleter h">删除</td>
</tr>
<tr>
<td>22232309</td>
<td>迪斯科</td>
<td>男</td>
<td>计算机工程学院</td>
<td>222323</td>
<td>计算机科学与技术</td>
<td>阿迪是</td>
<td style="cursor: pointer;" class="deleter h">删除</td>
</tr>
<tr>
<td>222323010</td>
<td>虚空魔石</td>
<td>男</td>
<td>计算机工程学院</td>
<td>222323</td>
<td>计算机科学与技术</td>
<td>阿迪是</td>
<td style="cursor: pointer;" class="deleter h">删除</td>
</tr>
<button id="add">添加学生信息</button>
</table>
<table id="table2">
<tr>
<td>学号:<input type="text" id="xuehao"></td>
</tr>
<tr>
<td>姓名:<input type="text" id="xingming"></td>
</tr>
<tr>
<td>性别:<input type="text" id="xingbie"></td>
</tr>
<tr>
<td>二级学院:<input type="text" id="xueyuan"></td>
</tr>
<tr>
<td>班级:<input type="text" id="banji"></td>
</tr>
<tr>
<td>专业:<input type="text" id="zhuanye"></td>
</tr>
<tr>
<td>辅导员:<input type="text" id="daoyuan"></td>
</tr>
<tr>
<td><button id="tijiao">提交</button></td>
<td><button id="tuichu">退出</button></td>
</tr>
</table>
<script>
h = document.querySelectorAll(".h")
bigbox = document.getElementById("bigbox")
var otr = document.getElementsByTagName("tr")
var tbody = document.getElementById("tbody")
add = document.getElementById("add")
console.log(add)
deleterrr()
function deleterrr() {
var deleter = document.querySelectorAll(".deleter")
for (z = 0; z < deleter.length; z++) {
deleter[z].dataset.index = z;
deleter[z].onclick = function () {
var a = Number(this.dataset.index)
getalltr()
if (confirm("确认删除?")) { deleter[a].parentElement.remove() }
}
}
}
function getalltr() {
for (i = 0; i < otr.length; i++) {
otr[i].dataset.index = i
}
}
add.onclick = function () {
table2.style.display = "block"
}
tuichu.onclick = function () {
table2.style.display = "none"
}
tijiao.onclick = function () {
var deleter = document.querySelectorAll(".deleter")
var tr = document.createElement("tr");
tr.innerHTML = `<td>${xuehao.value}</td><td>${xingming.value}</td><td>${xingbie.value}</td><td>${xueyuan.value}</td><td>${banji.value}</td><td>${zhuanye.value}</td><td>${daoyuan.value}</td><td style="cursor: pointer;" class="deleter h">删除</td> `
h[0].parentElement.parentElement.appendChild(tr)
xuehao.value = ""
xingbie.value = ""
xingming.value = ""
xueyuan.value = ""
banji.value = ""
zhuanye.value = ""
daoyuan.value = ""
deleter = document.querySelectorAll(".deleter")
deleterrr()
}
</script>
</body>
</html>