1、简单函数方案
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| <html>
<head>
<meta charset="UTF-8" />
<title></title>
</head>
<body>
<h1 id="numBox"></h1>
</body>
<script type="text/javascript">
function NumAutoPlusAnimation(baseNumber, finalNum) {
var step = (finalNum - baseNumber) / 20;
var count = baseNumber;
var initial = 0;
var timer = setInterval(() => {
count = count + step;
if (count >= finalNum) {
clearInterval(timer);
count = finalNum;
}
var t = count.toFixed(2);
initial = t;
numBox.innerHTML = initial;
}, 30);
}
NumAutoPlusAnimation(0, 26.88);
</script>
</html>
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2、html页面countUp.js方案
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| <!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document-countUp-js</title>
<script>
</script>
<script src="https://unpkg.com/countup@1.8.2/dist/countUp.min.js"></script>
</head>
<body>
<div id="num1"></div>
<div id="num2"></div>
<button onclick="start()">增加+</button>
<button onclick="reset()">重置</button>
</body>
<script>
var options = {
useEasing: true,
useGrouping: true,
separator: ",",
decimal: ".",
prefix: "*",
suffix: "",
};
var num1 = new CountUp("num1", 0, 200, 2);
var num2 = new CountUp("num2", 100, 399);
function start() {
console.log("start", num1);
num1.start();
num2.start();
}
function pause() {
console.log("pause");
num1.pauseResume();
}
function reset() {
console.log("reset");
num1.reset();
}
function updata() {
console.log("updata");
num1.update(888);
}
let numDiv = document.querySelector("#num1");
document.addEventListener("scroll", function (e) {
let a =
document.documentElement.scrollTop +
window.innerHeight -
numDiv.offsetTop;
});
</script>
</html>
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3、vue中使用useTransition和countUp方案
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| <!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>vue-Document</title>
<script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>
<script src="https://unpkg.com/@vueuse/shared"></script>
<script src="https://unpkg.com/@vueuse/core"></script>
<script src="https://unpkg.com/countup@1.8.2/dist/countUp.min.js"></script>
</head>
<body>
<div id="app">
<span>{{message}}---count：{{count}}</span>
<br />
<button @click="count+=121">
增加-useTransition--Count is: {{ Math.floor(output) }}
</button>
<div id="countup" ref="countupRef">1</div>
<button @click="initCount">增加-CountUp：{{}}</button>
</div>
<script>
const { createApp, ref, onMounted } = Vue;
const { TransitionPresets, useTransition } = VueUse;
createApp({
setup() {
const countupRef = ref(null);
const message = ref("Hello vue!");
const count = ref(0);
const output = useTransition(count, {
duration: 1000,
transition: TransitionPresets.easeInOutCubic,
});
onMounted(() => {
});
const initCount = () => {
num1 = new CountUp(countupRef.value, 2,100);
num1.start();
};
return {
message,
count,
output,
initCount,
countupRef
};
},
}).mount("#app");
</script>
</body>
</html>
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4、vue中使用vue-countup-v2方案
CountUp.js：https://github.com/inorganik/CountUp.js
vue-countup-v2：https://github.com/xlsdg/vue-countup-v2
安装
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| npm install --save countup.js vue-countup-v2
|
usage
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| <template>
<div class="iCountUp">
<ICountUp
:delay="delay"
:endVal="endVal"
:options="options"
@ready="onReady"
/>
</div>
</template>
<script type="text/babel">
import ICountUp from 'vue-countup-v2';
export default {
name: 'demo',
components: {
ICountUp
},
data() {
return {
delay: 1000,
endVal: 120500,
options: {
useEasing: true,
useGrouping: true,
separator: ',',
decimal: '.',
prefix: '',
suffix: ''
}
};
},
methods: {
onReady: function(instance, CountUp) {
const that = this;
instance.update(that.endVal + 100);
}
}
};
</script>
<style scoped>
.iCountUp {
font-size: 12em;
margin: 0;
color: #4d63bc;
}
</style>
|
5、tweenjs方案
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| <!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document-tweenjs</title>
<script src="https://cdnjs.cloudflare.com/ajax/libs/tween.js/20.0.0/tween.umd.js"></script>
<style></style>
</head>
<body>
<div id="box">0</div>
<button class="btn">tweenjs增加+</button>
<script>
const box = document.getElementById("box");
let data = { num: 0 };
const tweenC = new TWEEN.Tween(data)
.to({ num: 199 }, 1000)
.easing(TWEEN.Easing.Quadratic.InOut)
.onUpdate((a) => {
num = Math.floor(data.num);
console.log(num);
box.innerText = num;
})
.start();
function animate() {
requestAnimationFrame(animate);
tweenC.update();
}
const btn = document.querySelector(".btn");
btn.addEventListener("click", function (e) {
animate();
});
</script>
</body>
</html>
|
