纯Vue实现视频106
纯Vue版本
components
Count.vue
<template>
<div>
<h1>当前求和为:{{sum}}</h1>
<select v-model.number="n">
<!-- 收集到的是字符串类型, v-model.number="n"强转-->
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
</select>
<button @click="increment">+</button>
<button @click="decrement">-</button>
<button @click="incrementOdd">当前求和为奇数再加</button>
<button @click="incrementWait">等一等再加</button>
</div>
</template>
<script>
export default {
name:'Count',
data() {
return {
n:1, //用户选择的数字
sum:0 //当前的和
}
},
methods: {
increment(){
this.sum += this.n
},
decrement(){
this.sum -= this.n
},
incrementOdd(){
if(this.sum % 2){
this.sum += this.n
}
},
incrementWait(){
setTimeout(()=>{
this.sum += this.n
},500)
},
},
}
</script>
<style lang="css">
button{
margin-left: 5px;
}
</style>
App.vue
<template>
<div>
<Count/>
</div>
</template>
<script>
import Count from './components/Count'
export default {
name:'App',
components:{Count},
}
</script>
main.js
//引入Vue
import Vue from 'vue'
//引入App
import App from './App.vue'
//引入插件
import vueResource from 'vue-resource'
//关闭Vue的生产提示
Vue.config.productionTip = false
//使用插件
Vue.use(vueResource)
//创建vm
new Vue({
el:'#app',
render: h => h(App),
beforeCreate() {
Vue.prototype.$bus = this
}
})