JS简单实现滑动加载数据的方法示例

//滑动function getScrollTop(){ var scrollTop = 0; if (document.documentElement && document.documentElement.scrollTop) {   scrollTop = document.documentElement.scrollTop;  }else if (document.body) {  scrollTop = document.body.scrollTop;  }  return scrollTop;}//获取当前可视范围的高度function getClientHeight(){ var clientHeight = 0; if (document.body.clientHeight && document.documentElement.clientHeight) {   clientHeight = Math.min(document.body.clientHeight, document.documentElement.clientHeight); }else {   clientHeight = Math.max(document.body.clientHeight, document.documentElement.clientHeight); }   return clientHeight;}//获取文档完整的高度function getScrollHeight(){   return Math.max(document.body.scrollHeight, document.documentElement.scrollHeight);}//绑定事件window.onscroll = function (){ if (getScrollTop() + getClientHeight() == getScrollHeight()) {  //dosomething }}