本文实例为大家分享了Vue实现计时器的具体代码，供大家参考，具体内容如下
功能简介：
1、初始值为0，点击【加】按钮，数字自+1；连续点击【加】，不影响数字+1
2、点击【停】按钮，停止+1
源码：
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<!DOCTYPE html>
<html add="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<script src="./lib/vue-2.4.0.js"></script>
</head>
<body>
<div id="app">
<input type="button" value="加" @click="add">
<input type="button" value="停" @click="stop">
<h4>{{ count }}</h4>
</div>
<script>
var vm = new Vue({
el: '#app',
data: {
count: 0,
intervalId: null
},
methods: {
add() {
// 计时器正在进行中，退出函数
if (this.intervalId != null) {
return
};
// 计时器为空，操作
this.intervalId = setInterval(() => {
this.count += 1
}, 400)
},
// 停止定时器
stop() {
clearInterval(this.intervalId)//清除计时器
this.intervalId = null;//设置为null
}
}
})
</script>
</body>
</html>
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之前小编收藏了一个开始计时的组件，这个组件可直接引入到项目中使用，谢谢原作者分享。
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<template>
<div class="timer">
<div ref="startTimer"></div>
</div>
</template>
<script>
export default {
name: 'Timer',
data () {
return {
timer: "",
content: "",
hour: 0,
minutes: 0,
seconds: 0
}
},
created () {
this.timer = setInterval(this.startTimer, 1000);
},
destroyed () {
clearInterval(this.timer);
},
methods: {
startTimer () {
this.seconds += 1;
if (this.seconds >= 60) {
this.seconds = 0;
this.minute = this.minute + 1;
}
if (this.minute >= 60) {
this.minute = 0;
this.hour = this.hour + 1;
}
this.$refs.startTimer.innerHTML = (this.minutes < 10 ? '0' + this.minutes : this.minutes) + ':' + (this.seconds < 10 ? '0' + this.seconds : this.seconds);
}
}
}
</script>
<style>
</style>
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2021-06-27
