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Vue.js动态添加、删除选题的实例代码

2018年05月10日  | 移动技术网IT编程  | 我要评论

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大家先看看页面效果吧,当当当当```````````````````````

图中第二个选题是小颖点击了"新增选题"按钮,然后出来的,当你点击了"删除选项"或"删除选题"按钮,就会删除相应的选项和选题.

html代码

<template>
<div class="main-container">
<div class="form-horizontal">
<template v-for='(subjectindex,subject) in question'>
<div class="form-group">
<label class="col-sm-1 control-label">选题:</label>
<label class="col-sm-2 control-label red remove-pad" v-if='$index>0' @click='deletesubjectfun(subjectindex)'>删除选题</label>
</div>
<div class="form-group">
<label class="col-sm-1 control-label">标题:</label>
<div class="col-sm-2">
<input type="text" class="form-control" placeholder="未填写" v-model='subject.title'>
</div>
</div>
<div class="form-group">
<label class="col-sm-1 control-label">正确答案:</label>
<div class="col-sm-1">
<input type="text" class="form-control answer" placeholder="未填写" readonly="true" v-model='subject.answer'>
</div>
<span class="prompting-message">请在以下选项中,勾选出正确答案</span>
</div>
<div class="form-group">
<label class="col-sm-1 control-label">分值:</label>
<div class="col-sm-1">
<input type="number" min="1" max="100" class="form-control" v-model='subject.score' @keyup='scorefun(subjectindex)'>
</div>
</div>
<div class="form-group">
<label class="col-sm-1 control-label">选项:</label>
</div>
<div class="form-group">
<div class="col-sm-3 mg1">
<ul class="upper-latin">
<template v-for='(opdtindex,opdt) in subject.optionsdata'>
<li>
<input type="checkbox" class="checkbox-answer" v-model='subject.answer' value='{{opdt.id}}'>
<div class="options-div">
<input type="text" class="form-control options-input" placeholder="未填写" v-model='opdt.options'>
<label class="control-label blue remove-pad" v-if='opdtindex==subject.optionsdata.length-1' @click='addnewoptionsfun(subjectindex,opdtindex)'>新增选项</label>
<label class="control-label red remove-pad" v-if='opdtindex>0' @click='deleteoptionsfun(subjectindex,opdtindex)'>删除选项</label>
</div>
</li>
</template>
</ul>
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-1 col-sm-4">
<button class="blue boder" @click='addnewsubjectfun(subjectindex)'>新增选题</button>
</div>
</div>
<div class='split-line'></div>
</template>
<div class="form-group">
<div class="col-sm-offset-1 col-sm-4">
<button class="btn btn-primary" @click='savequestionfun'>提交</button>
</div>
</div>
</div>
</div>
</template>

js代码

<script>
export default {
components: {
},
props: {},
methods: {
// 新增选题
addnewsubjectfun: function(index) {
var subjectdatames = {};
subjectdatames.id = index+2;
subjectdatames.title = '';
subjectdatames.answer =[];
subjectdatames.score = 10;
subjectdatames.optionsdata = [{
id: 'a',
options: ''
}];
this.question.push(subjectdatames);
},
// 判断每个题目的分值不能小于零且不能大于一百
scorefun:function(index){
if(this.question[index].score<0){
this.question[index].score=10;
this.$root.tipstr = '选题"'+this.question[index].title+'"的分值不能小于零';
}else if(this.question[index].score>100){
this.question[index].score=10;
this.$root.tipstr = '选题"'+this.question[index].title+'"的分值不能大于一百';
}
},
// 删除选题
deletesubjectfun: function(index) {
this.question.splice(index, 1);
},
// 新增选项
addnewoptionsfun: function(subjectindex, opdtindex) {
var optionsdatames = {};
optionsdatames.id =string.fromcharcode(64 + (opdtindex+2)); //将id从数字转换成大写字母.
optionsdatames.options = '';
var subjectdatames = this.question[subjectindex].optionsdata;
subjectdatames.push(optionsdatames);
},
// 删除选项
deleteoptionsfun: function(subjectindex, opdtindex) {
var subjectdatames = this.question[subjectindex].optionsdata;
subjectdatames.splice(opdtindex, 1);
},
savequestionfun:function(){
this.question;debugger;
}
},
ready: function() {
},
data() {
return {
question: [{
id: 1,
title: '',
answer: [],
score:10,
optionsdata: [{
id: 'a',
options: ''
}],
}],
}
}
}
</script>

css代码

<style scoped>
.mg1 {
padding: 8px 0 0 113px;
}
.upper-latin {
list-style-type: upper-latin;
}
input.form-control.options-input {
display: inline-block; /*width: 499.16px;*/
width: 100%;
}
.boder {
border: 1px solid;
background-color: #fff;
border-radius: 4px;
line-height: 34px;
padding: 0 15px;
}
.blue {
color: #2689cd;
text-align: center;
}
label.red {
color: #c9302c;
}
label.remove-pad {
/*padding: 10px 20px 10px 15px;*/
line-height: 34px;
text-align: left;
}
.split-line {
height: 10px;
border-top: 2px dashed #e7e8ec;
width: 900px;
}
.prompting-message {
line-height: 34px;
}
.options-div {
margin-left: 26px;
margin-top: -25px;
padding-bottom: 25px;
}
</style>

以上所述是小编给大家介绍的vue.js动态添加、删除选题的实例代码，希望对大家有所帮助

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