JS div匀速移动动画与变速移动动画代码实例
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2023-11-14 13:49:04
1.匀速移动代码
1.匀速移动代码
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>title</title> <style> * { margin: 0; padding: 0; } div { margin-top: 20px; width: 200px; height: 100px; background-color: green; position: absolute; left: 0; top: 0; } </style> </head> <body> <input type="button" value="移动到400px" id="btn1"/> <input type="button" value="移动到800px" id="btn2"/> <div id="dv"> <script src="common.js"></script> <script> //点击按钮移动div my$("btn1").onclick = function () { animate(my$("dv"), 400); }; my$("btn2").onclick = function () { animate(my$("dv"), 800); }; //匀速动画 function animate(element, target) { //清理定时器 clearinterval(element.timeid); element.timeid = setinterval(function () { //获取元素的当前位置 var current = element.offsetleft; //移动的步数 var step = 10; step = target > current ? step : -step; current += step; if (math.abs(current - target) > math.abs(step)) { element.style.left = current + "px"; } else { clearinterval(element.timeid); element.style.left = target + "px"; } }, 20); } </script> </div> </body> </html>
2.变速移动代码
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>title</title> <style> * { margin: 0; padding: 0; } div { margin-top: 20px; width: 200px; height: 100px; background-color: green; position: absolute; left: 0; top: 0; } </style> </head> <body> <input type="button" value="移动到400px" id="btn1"/> <input type="button" value="移动到800px" id="btn2"/> <div id="dv"> <script src="common.js"></script> <script> //点击按钮移动div my$("btn1").onclick = function () { animate(my$("dv"), 400); }; my$("btn2").onclick = function () { animate(my$("dv"), 800); }; //变速动画 function animate(element, target) { //清理定时器 clearinterval(element.timeid); element.timeid = setinterval(function () { //获取元素的当前位置 var current = element.offsetleft; //移动的步数 var step = (target-current)/10; step = step>0?math.ceil(step):math.floor(step); current += step; element.style.left = current + "px"; if(current==target) { //清理定时器 clearinterval(element.timeid); } }, 20); } </script> </div> </body> </html>
common.js
/** * 获取指定标签对象 * @param id 标签的id属性值 * @returns {element}根据id属性值返回指定标签对象 */ function my$(id) { return document.getelementbyid(id); }
以上所述是小编给大家介绍的js div匀速移动动画与变速移动动画详解整合,希望对大家有所帮助
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