https://github.com/inorganik/countUp.js
target = 目标元素的 ID；startVal = 开始值；endVal = 结束值；decimals = 小数位数，默认值是0；duration = 动画延迟秒数，默认值是2；|
1
2
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var demo = new countUp("myTargetElement", 24.02, 94.62, 2, 2.5);demo.start(); |
原文：https://www.cnblogs.com/jiayeyuan/p/10165474.html