運動,其實就是在一段時間內改變 left
、 right
、 width
、 height
、 opactiy
的值,到達目的地之后停止
-
位移
top
,left
-
折疊
width
,height
-
淡入淡出
opacity
-
時間有關系
-
setInterval
-
setTimeout
-
- 用javascript直接獲取行間樣式很容易,但如果要獲取非行間樣式那我們只能借助函數了。我這里編寫了一個名為getStyle的函數,專門處理取非行間的樣式
functiongetStyle(obj,attr){ return getComputedStyle(obj)[attr]?getComputedStyle(obj)[attr]:obj.currentStyle[attr]; }
1.2 一些案例演示
1.2.1 運動之速
lt;divid="box"gt;lt;/divgt;
#box { width: 100px; height: 100px; background: red; position: relative; left: 0; }
var box = document.getElementById("box"); var speed = 0; //步長 var target = 600; var timer = null; timer = setInterval(function(){ var curr = parseInt(getStyle(box,"left")); //去除getStyle(box,"left")的單位 if(curr == target){ clearInterval(timer); speed = 0; alert("運動結束"); }else{ speed =10; box.style.left = speed "px"; } },1000/30); //監控left的值的變化 怎么樣拿到left的值 //alert(getComputedStyle(box)["width"]); //alert(box.currentStyle["left"]); // currentStyle --IE // getComputedStyle -- 非IE functiongetStyle(obj,attr){ return getComputedStyle(obj)[attr]?getComputedStyle(obj)[attr]:obj.currentStyle[attr]; }
1.2.2 運動速度之封裝1
lt;divid="ball"gt;lt;/divgt;
#ball { width: 100px; height: 100px; background: blue; }
var ball = document.getElementById("ball"); ball.onmouseover = function(){ //同時變換 用的最多 //move(this,"width",500,10); //move(this,"height",500,10); move(ball,{"width":400,"height":300},10); } ball.onmouseout = function(){ //move(this,"width",100,-10); //move(this,"height",100,-10); move(ball,{"width":100,"height":100},-10); } functionmove(obj,json,speed){ clearInterval(obj.timer); var mark = true; obj.timer = setInterval(function(){ for(var attr in json){ var curr = parseInt(getStyle(obj,attr)); var target = json[attr]; if(curr != target){ obj.style[attr] = curr speed "px"; mark = false; } } if(mark){ clearInterval(obj.timer); } },1000/30); } functiongetStyle(obj,attr){ return getComputedStyle(obj)[attr]?getComputedStyle(obj)[attr]:obj.currentStyle[attr]; }
-
需要注意的地方
- 當需要兩個動畫的時候,會執行后面一個,解決辦法如下,回調函數
- 當需要兩個以上的時候,需要考慮是否可寫一行代碼變換多個屬性
- 變換不一致的時候,定時器被提前清除
1.2.3 運動速度之封裝2–增加opacity
lt;divid="ball"gt;lt;/divgt;
#ball { position: relative; left: 0; top: 0; width: 100px; height: 100px; background: blue; opacity: 1; }
var ball = document.getElementById("ball"); ball.onmouseover = function(){ move(ball,{"width":300,"height":300,"opacity":0.3}); } // ball.onmouseout = function(){ // move(ball,{"width":100,"height":100},-10); // } functionmove(obj,json){ clearInterval(obj.timer); var mark = true; obj.timer = setInterval(function(){ for(var attr in json){ var curr = null; var target = json[attr]; var speed = null; if(attr == "opacity"){ curr = getStyle(obj,attr)*100; speed = (target*100-curr)*0.15; }else { curr = parseInt(getStyle(obj,attr)); speed = (target - curr)*0.15; } speed = speedgt;0 ? Math.ceil(speed):Math.floor(speed); if(curr != target){ if(attr == "opacity"){ obj.style[attr] = (curr speed)/100; }else { obj.style[attr] = curr speed "px"; } mark = false; } } if(mark){ clearInterval(obj.timer); } },1000/30); } functiongetStyle(obj,attr){ return getComputedStyle(obj)[attr]?getComputedStyle(obj)[attr]:obj.currentStyle[attr]; }
-
需要注意的地方
- 當需要兩個動畫的時候,會執行后面一個,解決辦法如下,回調函數
- 當需要兩個以上的時候,需要考慮是否可寫一行代碼變換多個屬性
- 變換不一致的時候,定時器被提前清除
-
速度
speed
不要寫死
1.3 運動框架之應用
1.3.1 分享按鈕
lt;divid="ball"gt;lt;/divgt; lt;divid="box1"gt; lt;divid="box2"gt;分享到lt;/divgt; lt;/divgt;
var box1 = document.getElementById("box1"); var ball = document.getElementById("ball"); box1.onmouseover = function(){ move(this,"left",0,10); } box1.onmouseout = function(){ move(this,"left",-100,-10); } //問題一:當需要兩個動畫的時候,會執行后面一個,解決辦法如下,回調函數 ball.onmouseover = function(){ //同時變換 用的最多 //move(this,"width",500,10); //move(this,"height",500,10); //列隊在執行 move(ball,"width",500,10,function(){ move(ball,"height",500,10); }); } ball.onmouseout = function(){ //move(this,"width",100,-10); //move(this,"height",100,-10); move(ball,"width",100,-10,function(){ move(ball,"height",100,-10); }); } var timer = null; functionmove(obj,attr,target,speed,callback){ clearInterval(timer); //obj.timer緩存到各自的obj下 timer = setInterval(function(){ var curr = parseInt(getStyle(obj,attr)); if(curr == target){ clearInterval(timer); callback callback(); }else { obj.style[attr] = curr speed "px"; } },1000/30); } functiongetStyle(obj,attr){ return getComputedStyle(obj)[attr]?getComputedStyle(obj)[attr]:obj.currentStyle[attr]; }
1.3.2運動框架之輪播圖應用
1.3.2.1 焦點輪播–左右-無縫-速度版實現
lt;divid="box"gt; lt;ulid="imgBox"gt; lt;ligt;![](http://upload-images.jianshu.io/upload_images/1480597-c72819402fb928e8.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)lt;/ligt; lt;ligt;![](http://upload-images.jianshu.io/upload_images/1480597-6830ca74fe1e6fcd.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)lt;/ligt; lt;ligt;![](http://upload-images.jianshu.io/upload_images/1480597-5d38376e63ffd0b0.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)lt;/ligt; lt;ligt;![](http://upload-images.jianshu.io/upload_images/1480597-2aa932ffbba4091e.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)lt;/ligt; lt;ligt;![](http://upload-images.jianshu.io/upload_images/1480597-c72819402fb928e8.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)lt;/ligt; lt;/ulgt; lt;olid="btn"gt; lt;liclass="active"gt;1lt;/ligt; lt;ligt;2lt;/ligt; lt;ligt;3lt;/ligt; lt;ligt;4lt;/ligt; lt;/olgt; lt;/divgt; lt;scriptsrc="http://7xq6al.com1.z0.glb.clouddn.com/Animate.min.js"gt;lt;/scriptgt; lt;scripttype="text/javascript"gt; var box = document.querySelector("#box"); var imgUl = document.querySelector("#imgBox"); var btns = document.querySelector("#btn").querySelectorAll("li"); var len = btns.length; var lenImg = imgUl.querySelectorAll("li").length; var index = 0; //控制img的索引 var cindex = 0;//控制按鈕的索引 var timer = null; for (var i=0;ilt;len;i ) { (function(index){ btns[index].onmouseover = function(){ for (var j=0;jlt;len;j ){ btns[j].className = ""; } cindex = index;//保持索引同步 animateSpeed(imgUl,{"left":-970*index}); this.className = "active"; } })(i); } functionautoPlay(){ index ; cindex ; cindex %=len;//限制長度 for (var j=0;jlt;len;j ){ btns[j].className = ""; } animateSpeed(imgUl,{"left":-970*index},function(){ if(index == lenImg-1){ this.style.left = 0; index = 0; } }); btns[cindex].className = "active"; } timer = setInterval(autoPlay,2000); box.onmouseover = function(){ clearInterval(timer); } box.onmouseout = function(){ timer = setInterval(autoPlay,2000); } lt;/scriptgt;
*{ padding: 0; margin: 0; } body{ font-size: 14px; font-family: "微軟雅黑"; } ul,li{ list-style: none; } #box { position: relative; width: 970px; height: 350px; margin: 30px auto; overflow: hidden; } #imgBox { width:1000%;/*自動計算百分比*/ position: absolute; left: 0; } #imgBox li{ width: 970px; height: 350px; float: left; } #imgBox li img { width: 970px; height: 350px; } #btn { width: 120px; position: absolute; right: 10px; bottom: 10px; } #btn li { width: 20px; height: 20px; line-height: 20px; border-radius: 50%; text-align: center; cursor: pointer; background: #fff; margin: 0 2px; float: left; } #btn li.active { background: #F17A5C; color: #fff; }
//速度版本 (function(win){ functionmove(obj,json,callback){ clearInterval(obj.timer); obj.timer = setInterval(function(){ var mark = true; for(var attr in json){ var cur = null; if(attr == "opacity"){ cur = getStyle(obj,attr)*100; }else{ //如果沒寫 默認填充成0 cur = parseInt(getStyle(obj,attr))||0; } var target = json[attr]; var speed = (target - cur)*0.2; speed = speedgt;0?Math.ceil(speed):Math.floor(speed); if(cur != target){ if(attr == "opacity"){ //IE opacity兼容問題 obj.style.filter = "alpha(opacity=" (cur speed) ")"; obj.style[attr] = (cur speed)/100; }else{ obj.style[attr] = cur speed "px"; } mark = false; }; } if(mark){ clearInterval(obj.timer); callback callback.call(obj); } },1000/30); } win.animateSpeed = move; })(window); functiongetStyle(obj,attr){ return getComputedStyle(obj)[attr]?getComputedStyle(obj)[attr]:obj.currentStyle[attr]; } functiongetId(id){ return document.getElementById(id); }
二、JavaScript運動框架之時間版
2.1 關于運動
- 速度的運動 通過速度來控制元素的 位移 / 折疊 / 淡入淡出
- 時間的運動 通過時間來控制元素的 位移 / 折疊 / 淡入淡出(jQuery)
- 時間的運動 基于一些數學公式 勻速運動 在路程的每一個點 速度都一樣
2.2 一些案例演示
2.3 運動框架之時間版本-借助animate一些函數實現–綜合完整版
lt;divid="box2"gt;lt;/divgt; lt;divid="box3"gt;lt;/divgt; lt;divid="box4"gt;lt;/divgt; lt;divid="box5"gt;lt;/divgt; lt;scripttype="text/javascript"gt; //時間版本 getId("box2").onclick = function(){ animateTime(getId("box2"),{ "left":500, "opacity":100 },1000,"elasticOut",function(){ this.innerHTML = "我是時間版本"; }); } getId("box3").onclick = function(){ animateTime(getId("box3"),{ "left":500, "opacity":100 },1000,"backIn",function(){ this.innerHTML = "我是時間版本"; }); } getId("box4").onclick = function(){ animateTime(getId("box4"),{ "left":500, "opacity":100 },1000,"bounceIn",function(){ this.innerHTML = "我是時間版本"; }); } getId("box5").onclick = function(){ animateTime(getId("box5"),{ "left":500, "opacity":100 },1000,"bounceBoth",function(){ this.innerHTML = "我是時間版本"; }); } lt;/scriptgt;
#box1,#box2,#box3,#box4,#box5 { position: relative; width: 100px; height: 100px; line-height: 100px; text-align: center; background: red; color: #fff; font-size: 12px; opacity: 0.5; filter:alpha(opcity=20);/**兼容IE*/ margin: 10px; }
/*t b c d t current time :nTime-sTime b begining time :curr c chang in value :變化量end-curr d duration :持續時間 time */ /** * * @param {Object} obj 元素對象 * @param {Object} json 多個屬性 * @param {Object} time 變化時間 * @param {Object} prop 運動函數 * @param {Object} callback 回調函數 */ //時間版本 (function(win){ functionmove(obj,json,time,prop,callback){ //一般定時器結束后最好清除 clearInterval(obj.timer); var curr = {}; var end = {}; //通過for in 在上車前把所有東西裝到包里 for(var attr in json){ if(attr == "opacity"){//opacity特殊東西特殊對待 curr[attr] = getStyle(obj,attr)*100;//化為整數好計算 }else{ curr[attr] = parseInt(getStyle(obj,attr))||0; } end[attr] = json[attr]; } //如果沒寫默認值 默認就是0 不然在IE出問題 //var curr = parseInt(getStyle(obj,attr))||0; //var end = target; var sTime = new Date();//開始時間T0 //開始變換了 obj.timer = setInterval(function(){ var nTime = new Date();//當前時間Tt var t = nTime -sTime; var d = time; //St = (Tt-T0)/Time*(S-S0) S0 //(nTime-sTime)/time 比例最多為1 /*var prop = (nTime-sTime)/time; */ if(t gt;=d){ t = d; clearInterval(obj.timer); callback callback.call(obj); } for(var attr in json){ var b = curr[attr]; var c = end[attr] - b; if(attr == "opacity"){ //var s = prop*(end[attr]-curr[attr]) curr[attr]; var s = Tween[prop](t,b,c,d); obj.style[attr] = s/100; obj.style.filter = "alpha(opacity=" s ")"; }else{ //var s = prop*(end[attr]-curr[attr]) curr[attr]; var s = Tween[prop](t,b,c,d); obj.style[attr] = s "px"; } } },13); var Tween = { linear: function(t, b, c, d){ //勻速 return c*t/d b; // t/d = prop; }, easeIn: function(t, b, c, d){ //加速曲線 return c*(t/=d)*t b; }, easeOut: function(t, b, c, d){ //減速曲線 return -c *(t/=d)*(t-2) b; }, easeBoth: function(t, b, c, d){ //加速減速曲線 if ((t/=d/2) lt; 1) { return c/2*t*t b; } return -c/2 * ((--t)*(t-2) - 1) b; }, easeInStrong: function(t, b, c, d){ //加加速曲線 return c*(t/=d)*t*t*t b; }, easeOutStrong: function(t, b, c, d){ //減減速曲線 return -c * ((t=t/d-1)*t*t*t - 1) b; }, easeBothStrong: function(t, b, c, d){ //加加速減減速曲線 if ((t/=d/2) lt; 1) { return c/2*t*t*t*t b; } return -c/2 * ((t-=2)*t*t*t - 2) b; }, elasticIn: function(t, b, c, d, a, p){ //正弦衰減曲線(彈動漸入) if (t === 0) { return b; } if ( (t /= d) == 1 ) { return b c; } if (!p) { p=d*0.3; } if (!a || a lt; Math.abs(c)) { a = c; var s = p/4; } else { var s = p/(2*Math.PI) * Math.asin (c/a); } return -(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) b; }, elasticOut: function(t, b, c, d, a, p){ //正弦增強曲線(彈動漸出) if (t === 0) { return b; } if ( (t /= d) == 1 ) { return b c; } if (!p) { p=d*0.3; } if (!a || a lt; Math.abs(c)) { a = c; var s = p / 4; } else { var s = p/(2*Math.PI) * Math.asin (c/a); } return a*Math.pow(2,-10*t) * Math.sin( (t*d-s)*(2*Math.PI)/p ) c b; }, elasticBoth: function(t, b, c, d, a, p){ if (t === 0) { return b; } if ( (t /= d/2) == 2 ) { return b c; } if (!p) { p = d*(0.3*1.5); } if ( !a || a lt; Math.abs(c) ) { a = c; var s = p/4; } else { var s = p/(2*Math.PI) * Math.asin (c/a); } if (t lt; 1) { return - 0.5*(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) b; } return a*Math.pow(2,-10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )*0.5 c b; }, backIn: function(t, b, c, d, s){ //回退加速(回退漸入) if (typeof s == 'undefined') { s = 1.70158; } return c*(t/=d)*t*((s 1)*t - s) b; }, backOut: function(t, b, c, d, s){ if (typeof s == 'undefined') { s = 3.70158; //回縮的距離 } return c*((t=t/d-1)*t*((s 1)*t s) 1) b; }, backBoth: function(t, b, c, d, s){ if (typeof s == 'undefined') { s = 1.70158; } if ((t /= d/2 ) lt; 1) { return c/2*(t*t*(((s*=(1.525)) 1)*t - s)) b; } return c/2*((t-=2)*t*(((s*=(1.525)) 1)*t s) 2) b; }, bounceIn: function(t, b, c, d){ //彈球減振(彈球漸出) return c - Tween['bounceOut'](d-t, 0, c, d) b; }, bounceOut: function(t, b, c, d){ if ((t/=d) lt; (1/2.75)) { return c*(7.5625*t*t) b; } else if (t lt; (2/2.75)) { return c*(7.5625*(t-=(1.5/2.75))*t 0.75) b; } else if (t lt; (2.5/2.75)) { return c*(7.5625*(t-=(2.25/2.75))*t 0.9375) b; } return c*(7.5625*(t-=(2.625/2.75))*t 0.984375) b; }, bounceBoth: function(t, b, c, d){ if (t lt; d/2) { return Tween['bounceIn'](t*2, 0, c, d) * 0.5 b; } return Tween['bounceOut'](t*2-d, 0, c, d) * 0.5 c*0.5 b; } }; } win.animateTime = move; })(window);
三、運動框架之時間速度版完整封裝
/*t b c d t current time :nTime-sTime b begining time :curr c chang in value :變化量end-curr d duration :持續時間 time */ /** * * @param {Object} obj 元素對象 * @param {Object} json 多個屬性 * @param {Object} time 變化時間 * @param {Object} prop 運動函數 * @param {Object} callback 回調函數 */ //時間版本 (function(win){ functionmove(obj,json,time,prop,callback){ //一般定時器結束后最好清除 clearInterval(obj.timer); var curr = {}; var end = {}; //通過for in 在上車前把所有東西裝到包里 for(var attr in json){ if(attr == "opacity"){//opacity特殊東西特殊對待 curr[attr] = getStyle(obj,attr)*100;//化為整數好計算 }else{ curr[attr] = parseInt(getStyle(obj,attr))||0; } end[attr] = json[attr]; } //如果沒寫默認值 默認就是0 不然在IE出問題 //var curr = parseInt(getStyle(obj,attr))||0; //var end = target; var sTime = new Date();//開始時間T0 //開始變換了 obj.timer = setInterval(function(){ var nTime = new Date();//當前時間Tt var t = nTime -sTime; var d = time; //St = (Tt-T0)/Time*(S-S0) S0 //(nTime-sTime)/time 比例最多為1 /*var prop = (nTime-sTime)/time; */ if(t gt;=d){ t = d; clearInterval(obj.timer); callback callback.call(obj); } for(var attr in json){ var b = curr[attr]; var c = end[attr] - b; if(attr == "opacity"){ //var s = prop*(end[attr]-curr[attr]) curr[attr]; var s = Tween[prop](t,b,c,d); obj.style[attr] = s/100; obj.style.filter = "alpha(opacity=" s ")"; }else{ //var s = prop*(end[attr]-curr[attr]) curr[attr]; var s = Tween[prop](t,b,c,d); obj.style[attr] = s "px"; } } },13); var Tween = { linear: function(t, b, c, d){ //勻速 return c*t/d b; // t/d = prop; }, easeIn: function(t, b, c, d){ //加速曲線 return c*(t/=d)*t b; }, easeOut: function(t, b, c, d){ //減速曲線 return -c *(t/=d)*(t-2) b; }, easeBoth: function(t, b, c, d){ //加速減速曲線 if ((t/=d/2) lt; 1) { return c/2*t*t b; } return -c/2 * ((--t)*(t-2) - 1) b; }, easeInStrong: function(t, b, c, d){ //加加速曲線 return c*(t/=d)*t*t*t b; }, easeOutStrong: function(t, b, c, d){ //減減速曲線 return -c * ((t=t/d-1)*t*t*t - 1) b; }, easeBothStrong: function(t, b, c, d){ //加加速減減速曲線 if ((t/=d/2) lt; 1) { return c/2*t*t*t*t b; } return -c/2 * ((t-=2)*t*t*t - 2) b; }, elasticIn: function(t, b, c, d, a, p){ //正弦衰減曲線(彈動漸入) if (t === 0) { return b; } if ( (t /= d) == 1 ) { return b c; } if (!p) { p=d*0.3; } if (!a || a lt; Math.abs(c)) { a = c; var s = p/4; } else { var s = p/(2*Math.PI) * Math.asin (c/a); } return -(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) b; }, elasticOut: function(t, b, c, d, a, p){ //正弦增強曲線(彈動漸出) if (t === 0) { return b; } if ( (t /= d) == 1 ) { return b c; } if (!p) { p=d*0.3; } if (!a || a lt; Math.abs(c)) { a = c; var s = p / 4; } else { var s = p/(2*Math.PI) * Math.asin (c/a); } return a*Math.pow(2,-10*t) * Math.sin( (t*d-s)*(2*Math.PI)/p ) c b; }, elasticBoth: function(t, b, c, d, a, p){ if (t === 0) { return b; } if ( (t /= d/2) == 2 ) { return b c; } if (!p) { p = d*(0.3*1.5); } if ( !a || a lt; Math.abs(c) ) { a = c; var s = p/4; } else { var s = p/(2*Math.PI) * Math.asin (c/a); } if (t lt; 1) { return - 0.5*(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) b; } return a*Math.pow(2,-10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )*0.5 c b; }, backIn: function(t, b, c, d, s){ //回退加速(回退漸入) if (typeof s == 'undefined') { s = 1.70158; } return c*(t/=d)*t*((s 1)*t - s) b; }, backOut: function(t, b, c, d, s){ if (typeof s == 'undefined') { s = 3.70158; //回縮的距離 } return c*((t=t/d-1)*t*((s 1)*t s) 1) b; }, backBoth: function(t, b, c, d, s){ if (typeof s == 'undefined') { s = 1.70158; } if ((t /= d/2 ) lt; 1) { return c/2*(t*t*(((s*=(1.525)) 1)*t - s)) b; } return c/2*((t-=2)*t*(((s*=(1.525)) 1)*t s) 2) b; }, bounceIn: function(t, b, c, d){ //彈球減振(彈球漸出) return c - Tween['bounceOut'](d-t, 0, c, d) b; }, bounceOut: function(t, b, c, d){ if ((t/=d) lt; (1/2.75)) { return c*(7.5625*t*t) b; } else if (t lt; (2/2.75)) { return c*(7.5625*(t-=(1.5/2.75))*t 0.75) b; } else if (t lt; (2.5/2.75)) { return c*(7.5625*(t-=(2.25/2.75))*t 0.9375) b; } return c*(7.5625*(t-=(2.625/2.75))*t 0.984375) b; }, bounceBoth: function(t, b, c, d){ if (t lt; d/2) { return Tween['bounceIn'](t*2, 0, c, d) * 0.5 b; } return Tween['bounceOut'](t*2-d, 0, c, d) * 0.5 c*0.5 b; } }; } win.animateTime = move; })(window); //速度版本 (function(win){ functionmove(obj,json,callback){ clearInterval(obj.timer); obj.timer = setInterval(function(){ var mark = true; for(var attr in json){ var cur = null; if(attr == "opacity"){ cur = getStyle(obj,attr)*100; }else{ //如果沒寫 默認填充成0 cur = parseInt(getStyle(obj,attr))||0; } var target = json[attr]; var speed = (target - cur)*0.2; speed = speedgt;0?Math.ceil(speed):Math.floor(speed); if(cur != target){ if(attr == "opacity"){ //IE opacity兼容問題 obj.style.filter = "alpha(opacity=" (cur speed) ")"; obj.style[attr] = (cur speed)/100; }else{ obj.style[attr] = cur speed "px"; } mark = false; }; } if(mark){ clearInterval(obj.timer); callback callback.call(obj); } },1000/30); } win.animateSpeed = move; })(window); functiongetStyle(obj,attr){ return getComputedStyle(obj)[attr]?getComputedStyle(obj)[attr]:obj.currentStyle[attr]; } functiongetId(id){ return document.getElementById(id); }
- 更多使用記錄,詳情 https://github.com/poetries/Animate
Tags: JavaScript
文章來源:http://blog.poetries.top/2017/01/12/js-animate/