vue实现计步器功能

<template>
 <div class="counter-component">
 <div class="counter-btn" @click="mins" :class="{ active: muber==min }">-</div>
 <input type="text" v-model="muber" @keyup="keyUpnumberVal" />
 <div class="counter-btn" @click="adds" :class="{ active: muber==max }">+</div>
 </div>
</template>
<script>
export default {
 name: "Stepper",
 data() {
 return {
 muber: 1
 };
 },
 props: {
 min: {
 type: Number,
 default: 1
 },
 max: {
 type: Number,
 default: 5
 },
 disabled,
 },
 methods: {
 mins() {
 if (this.muber <= this.min) {
 return;
 }
 this.muber--;
 this.$emit("countNumber", this.muber);
 },
 adds() {
 if (this.muber >= this.max) {
 return;
 }
 this.muber++;
 this.$emit("countNumber", this.muber);
 },
 keyUpnumberVal() {
 let numValue;
 if (typeof this.muber === "string") {
 }
 this.$emit("countNumber", this.muber);
 }
 }
};
</script>
<style lang="less" scoped>
.counter-component {
 position: relative;
 display: inline-table;
 overflow: hidden;
 vertical-align: middle;
}
.counter-show {
 float: left;
}
input {
 display: inline-block;
 border: none;
 border-top: 1px solid #e3e3e3;
 border-bottom: 1px solid #e3e3e3;
 height: 25px;
 line-height: 25px;
 width: 30px;
 text-align: center;
 outline: none;
 text-align: center;
 background: #fff;
}
.counter-btn {
 border: 1px solid #e3e3e3;
 display: inline-block;
 height: 25px;
 line-height: 25px;
 width: 25px;
 text-align: center;
 cursor: pointer;
}
.counter-btn:hover {
 border-color: #4fc08d;
 background: #4fc08d;
 color: #fff;
}
.active {
 background: rgb(182, 181, 181);
}
</style>

import Stepper from "./Stepper/Stepper";
<Stepper :min="Numbers" :max="maxNumbers" @countNumber="getFeslaves('countNumber',$event)"></Stepper>
data(){
return {
Numbers: 1,
maxNumbers: 5
}
 
}