<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<style type="text/css">
p {
display: none;
}
.red {
background-color: #8B0000;
}
/* .box {
width: 50px;
height: 50px;
} */
.r {background-color: red;}
.b {background-color: blue;}
.g {background-color: green;}
.active {background-color: darkred;}
</style>
</head>
<body>
<!-- 2、先有一下成绩单数据
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 },
]
用table表格标签渲染以上数据，表格第一列是学生总分排名，最后一列是学生总分；
3、还是采用上方相同的数据，采用相同的渲染规则，只渲染所有科目都及格了的学生。 -->
<!-- 1、还是采用上方相同的数据，添加筛选规则：
i）有三个按钮：语文、数学、外语，点击谁谁高亮，且当前筛选规则采用哪门学科
ii）两个输入框，【】~【】，前面天最小分数，后面填最大分数，全部设置完毕后，表格的数据会被更新只渲染满足所有条件的结果
举例：点击语文，输入【86】~【87】，那就只会渲染Jerry和Ben两条数据 -->
<div id="app">
<p v-for="v in scores">
<!-- {{v.name}}的分数：
math:{{ v.math }}
chinese:{{v.chinese}}
english:{{v.english}} -->
{{v.math, v.chinese, v.english|fn(v.name)}}
</p>
<!-- <p v-for="i in result">
{{i.name}}:{{i.grade}}
</p> -->
<div>成绩表：高亮的学生名字表示各科成绩及格<div>
<hr>
<table border="3" cellpadding="10">
<thead>
<tr>
<th>排名</th>
<th>学生名称</th>
<th>数学成绩</th>
<th>语文成绩</th>
<th>英语成绩</th>
<th>总分数</th>
</tr>
</thead>
<tbody v-for="v,i in result">
<tr>
<td>{{i+1}}</td>
<td class="red" v-if="is_pass === v.math > 60 & v.chinese >60 & v.english > 60">{{v.name}}</td>
<td v-else="is_pass">{{v.name}}</td>
<td>{{v.math}}</td>
<td>{{v.chinese}}</td>
<td>{{v.english}}</td>
<td>{{v.grade}}</td>
</tr>
</tbody>
</table>
<hr>
<!-- 第二题有bug -->
<div>
<div>
<input type="button" @click="page='r_page'" :class="{active:page === 'r_page'}" value="语文" v-if="page === 'r_page'">
<input type="button" @click="page='b_page'" :class="{active:page === 'b_page'}" value="数学">
<input type="button" @click="page='g_page'" :class="{active:page === 'g_page'}" value="英语">
<!-- <button type="button" @click="page='r_page'" :class="{active:page === 'r_page'}">语文</button>
<input type="button" @click="page='b_page'" :class="{active:page === 'b_page'}">数学</button>
<button type="button" @click="page='g_page'" :class="{active:page === 'g_page'}">英语</button> -->
<div v-if="page === 'r_page'" class="box r"></div>
<div v-else-if="page === 'b_page'" class="box b" ></div>
<div v-else class="box g"></div>
</div>
</div>
</div>
</body>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<script type="text/javascript">
var total_grade = [];
let app = new Vue({
el:'#app',
data:{
total:0,
is_pass:true,
page:'r_page',
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 },
]
},
filters:{
fn(math,chinese,english,name){
// console.log(a,b,c)
let total = math + chinese + english
// console.log(total_grade,total,name)
this.total = total
console.log(name,total_grade)
total_grade.push({'name':name,'math':math,'chinese':chinese,'english':english,'grade':total})
return total
}
},
computed:{
result(){
for (let i=0;i<total_grade.length-1;i++){
for (j=0;j<total_grade.length-1-i;j++){
if (total_grade[j].grade > total_grade[j+1].grade){
let tmp = total_grade[j]
total_grade[j] = total_grade[j+1]
total_grade[j+1] = tmp
}
}
};
return total_grade
}
},
})
</script>
</html>
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