这是什么b
Posted jimgraymane
tags:
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用table表格标签渲染总排名和总分数据
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<div id="app">
<table border="1">
<tbody>
</tbody>
</table>
</div>
</body>
<script src="js/vue.js"></script>
<script>
new Vue({
el: '#app',
data: {
}
})
</script>
<script>
// stus = [
// {
// name: 'Bob',
// grade: 98
// },
// {
// name: 'Tom',
// grade: 87
// },
// {
// name: 'Jerry',
// grade: 92
// },
// ];
//
var tbody=document.getElementsByTagName('tbody')
var scores = [
{ name: 'Bob', math: 97, chinese: 89, english: 67 },
{ name: 'Tom', math: 67, chinese: 52, english: 98 },
{ name: 'Jerry', math: 72, chinese: 87, english: 89 },
{ name: 'Ben', math: 92, chinese: 87, english: 59 },
{ name: 'Chan', math: 47, chinese: 85, english: 92 },
];
var Total=[];
// 按照分数进行排名
Total[0] =+scores[0].math+ +scores[0].chinese+ +scores[0].english;
Total[1] =+scores[1].math+ +scores[1].chinese+ +scores[1].english;
Total[2] =+scores[2].math+ +scores[2].chinese+ +scores[2].english;
Total[3] =+scores[3].math+ +scores[3].chinese+ +scores[3].english;
Total[4] =+scores[4].math+ +scores[4].chinese+ +scores[4].english;
for (let i=0; i<scores.length; i++) {
var newTr = document.createElement('tr');
for (let j=0; j<scores.length-i; j++) {
// 处理条件即可
if (Total[j] < Total[j+1]) {
let temp = Total[j];
Total[j] = Total[j + 1];
Total[j + 1] = temp;
}
x=5-j;
newTr.innerHTML='<td>'+ x +'</td><td>'+Total[j]+'</td>';
tbody[0].appendChild(newTr);
}
}
console.log(scores);
</script>
</html>还是用上方的规则,但是只渲染所有科目及格的学生
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<div id="app">
<table border="1">
<tr v-for="(stu,i) in scores" v-if="stu.math>=60 && stu.chinese>=60 && stu.english>=60">
<td>{{ i + 1 }}</td>
<td v-for="v in stu">{{ v }}</td>
</tr>
</table>
</div>
</body>
<script src="js/vue.js"></script>
<script>
let scores = [
{name: 'Bob', math: 97, chinese: 89, english: 67},
{name: 'Tom', math: 67, chinese: 52, english: 98},
{name: 'Jerry', math: 72, chinese: 87, english: 89},
{name: 'Ben', math: 92, chinese: 87, english: 59},
{name: 'Chan', math: 47, chinese: 85, english: 92},
];
var Total=[];
for (stu of scores) {
stu.total = stu.math + stu.chinese + stu.english;
Total.push(stu);
}
for (let i=0; i<scores.length; i++) {
// var newTr = document.createElement('tr');
for (let j=0; j<scores.length-i; j++) {
if (Total[j] < Total[j+1]) {
let temp = Total[j];
Total[j] = Total[j + 1];
Total[j + 1] = temp;
}
}
}
new Vue({
el: '#app',
data: {
scores: Total,
}
});
</script>
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