请js大神帮抓bug，愿发200元红包：图片被拖动后莫名其妙影响其它相邻图片的大小? 400 报错
请js大神帮抓bug，愿发200元红包：图片被拖动后莫名其妙影响其它相邻图片的大小? 400 报错
已在一品威客网站发布任务，请搜索“解决图片被拖动后莫名其妙影响其它相邻图片的大小”，接单。我qq：635200611.
运行环境：
在chrome中调试，模拟手机。
背景：
在手机屏幕上放4个div，id从modules_0到modules_3。每个div中有一个img，id从img0到img3。目标是实现img可以在4个div之间拖放，但始终保持每个div中有且只有一个img。
拖动用了jquery.ui，进一步的，手机端拖动又用了jquery.ui.touch-punch。分别包含在相应js文件中。
问题：
Step1：把img0从modules_0拖到modules_3，img3自动换到了modules_0内。这步没有问题。
Step2：出问题在这步。在modules_3内拖动img0，但不放到其它div，仍是放回modules_3。此时，莫名其妙的，modules_0内的img3的大小会自动缩小。问题会复现。
为快速理解，部分函数解读：
1、 loadImage（）：图片初始load的时候，保留每个图片的原始宽高比例。目的是为了把图片按原始宽高比例放入div，多余的部分不显示。
2、 droppable（）：是jquery.ui的函数，里面的具体内容自己写的，用于定义拖拽开始时（activate）、拖拽经过某个目标（over）、放下（drop）三个动作的具体内容。截图：
原始状态 
出错状态截图：
出错时console打印截图：
<html>
<head>
<meta http-equiv="imagetoolbar" content="no">
<meta name="viewport" content="width=device-width,initial-scale=0.64"/>
<meta http-equiv="content-type" content="text/html; charset=gb2312">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="black">
<meta name="format-detection" content="telephone=no">
<style type="text/css">
body{
-webkit-touch-callout:- none;
-webkit-text-size-adjust: none;
margin:0 auto;
overflow:hidden;
position:relative;
background:black;
background-image: url(paper.jpg);
background-repeat: repeat;
}
#layer2 {
position:absolute;
left:0px;
top:0px;
width:100%;
height:80%;
z-index:2;
}
#module_list {
position:absolute;
left:0px;
top:10px;
width:100%;
height:100%;
margin: 0 auto;
text-align: center;
}
#module_list div {
left:0px;
top:10px;
padding: 0px;
overflow:hidden;
}
.left {
background:white;
float: left;
margin-left: 3%;
border: 4px solid white;
}
.right {
background:white;
float: right;
margin-right: 3%;
border: 4px solid white;
}
div#modules_0 {
width:43%;
height:38%;
}
div#modules_1 {
width:43%;
height:38%;
}
div#modules_2 {
width:43%;
height:38%;
}
div#modules_3 {
width:43%;
height:38%;
}
.modules img{
background:#fff;
width:100%;
height:100%;
padding:0px;
border: solid 1px green;
}
#cardimg {
position: absolute;
top: 68%;
left:5%;
width:100%;
height:50%;
}
div#content{
position:relative;
border:1px solid #000;
width:100%;
height:100%;
margin:0 auto;
top:0px;
overflow:hidden;
clear:both;
}
div.clearit {
clear: both;
height: 20px;
}
.over {
border: 1px solid red;
}
</style>
<script>
</script>
<script type="text/javascript" src="jquery-1.11.2.min.js"></script>
<script type="text/javascript" src="jquery-ui.min.js"></script>
<script type="text/javascript" src="jquery.ui.touch-punch.js"></script>
</head>
<body style="margin:0; height: 100%" >
<div id="content" width="100%">
<section class="container">
<div id="layer2">
<div id="module_list">
<div id="modules_0" class="modules left">
<img class="m_title" id="img_0" src="fm1.jpg" onload='loadImage(0,this)' alt="">
</div>
<div id="modules_1" class="modules right">
<img class="m_title" id="img_1" src="fm2.jpg" onload='loadImage(1,this)' alt="">
</div>
<div class="clearit"></div>
<div id="modules_2" class="modules left">
<img class="m_title" id="img_2" src="fm3.jpg" onload='loadImage(2,this)' alt="">
</div>
<div id="modules_3" class="modules right">
<img class="m_title" id="img_3" src="fm4.jpg" onload='loadImage(3,this)' alt="">
</div>
</div>
</div>
</section>
<div id="cardimg">
</div>
<script>
var ratio=new Array();
function accMul(arg1,arg2) {
var m=0,s1=arg1.toString(),s2=arg2.toString();
try{m+=s1.split(".")[1].length}catch(e){}
try{m+=s2.split(".")[1].length}catch(e){}
return Number(s1.replace(".",""))*Number(s2.replace(".",""))/Math.pow(10,m)
}
function getNum(text) {
var value=text.replace(/[^0-9]/ig, "");
var value1=parseInt(value);
return value1;
}
function loadImage(j, obj) //<img>加载url事件调用的函数
{
var img = new Image(); //图片预加载
img.src=obj.src;
ratio[j]=img.height/img.width; //这里的img.width和img.height为原图大小
$("#modules_"+j+">img").each( function( i, val) {
val_w=$(this).width();
val_h=accMul(val_w, ratio[j]);
$(this).css({"width":val_w+'px',"height":val_h+'px'});
});
console.log("in loadImage, img %d: ratio=%f", j, ratio[j]);
}
$(function () {
for (j=0;j<=3;j++){
$("#modules_"+j).each( function( i, val) {
val_w=$(this).css("width");
$(this).css({"width":val_w,"height":val_w});
val_h=$(this).css("height");
$(this).css({"width":val_w,"height":val_h});
});
}
for (j=0;j<=3;j++){
$("#img_"+j).draggable({
helper: "clone",
});
}
for (j=0;j<=3;j++){
$("#modules_"+j).droppable({
activeClass: "ui-state-default",
hoverClass: "over",
activate: function (event, ui) {
var val_w=parseFloat(event.target.firstElementChild.style.width);
var ratio_id=getNum(event.target.firstElementChild.id);
var val_h=val_w*ratio[ratio_id];
var temp_height1=val_h+'px';
event.target.firstElementChild.style.height=temp_height1;
console.log("in activate after, event.target=", event.target);
console.log("in activate after, event.target.firstElementChild.style.height=", event.target.firstElementChild.style.height);
for ( var i=0;i<=event.target.childNodes.length-1;i++) {
console.log("in activate after, child %s=", i, event.target.childNodes[i]);
}
},
over: function (event, ui) {
console.log("in over, event.target=", event.target);
},
drop: function (event, ui) {
var target=document.getElementById(ui.draggable.context.id);
var div_id=target.parentNode.id;
event.target.appendChild(target);
console.log(event.target);
target.style.width=event.target.style.width;
console.log("event.target.style.width=%s", event.target.style.width);
var temp_width=parseFloat(target.style.width);
var dragged_img_id=getNum(ui.draggable.context.id);
var temp_height=temp_width*ratio[dragged_img_id];
var temp_height1=temp_height+"px";
target.style.height=temp_height1;//dragged image height
console.log("dragged img %d: ratio %f", dragged_img_id, ratio[dragged_img_id]);
console.log("dragged img %d: width=%f, height=%f", dragged_img_id, temp_width, temp_height);
var original_div=document.getElementById(div_id);//the div from which image is dragged
event.target.firstElementChild.style.width=original_div.style.width;//the current image in target div will be put into the original div
temp_width=parseFloat(event.target.firstElementChild.style.width);
var dropped_img_id=getNum(event.target.firstElementChild.id);
temp_height=temp_width*ratio[dropped_img_id];
temp_height1=temp_height+"px";
event.target.firstElementChild.style.height=temp_height1;
original_div.appendChild(event.target.firstElementChild);
console.log("dropped img %d: ratio %f", dropped_img_id, ratio[dropped_img_id]);
console.log("dropped img %d: width=%f, height=%f", dropped_img_id, temp_width, temp_height);
for ( var i=0;i<=event.target.childNodes.length-1;i++) {
console.log("in drop after, child %s=", i, event.target.childNodes[i]);
}
}
});
}
})
</script>
</div>
</body>
</html>
/*! jQuery v1.11.2 | (c) 2005, 2014 jQuery Foundation, Inc. | jquery.org/license */
!function(a,b){"object"==typeof module&&"object"==typeof module.exports?module.exports=a.document?b(a,!0):function(a){if(!a.document)throw new Error("jQuery requires a window with a document");return b(a)}:b(a)}("undefined"!=typeof window?window:this,function(a,b){var c=[],d=c.slice,e=c.concat,f=c.push,g=c.indexOf,h={},i=h.toString,j=h.hasOwnProperty,k={},l="1.11.2",m=function(a,b){return new m.fn.init(a,b)},n=/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,o=/^-ms-/,p=/-([\da-z])/gi,q=function(a,b){return b.toUpperCase()};m.fn=m.prototype={jquery:l,constructor:m,selector:"",length:0,toArray:function(){return d.call(this)},get:function(a){return null!=a?0>a?this[a+this.length]:this[a]:d.call(this)},pushStack:function(a){var b=m.merge(this.constructor(),a);return b.prevObject=this,b.context=this.context,b},each:function(a,b){return m.each(this,a,b)},map:function(a){return this.pushStack(m.map(this,function(b,c){return a.call(b,c,b)}))},slice:function(){return this.pushStack(d.apply(this,arguments))},first:function(){return this.eq(0)},last:function(){return this.eq(-1)},eq:function(a){var b=this.length,c=+a+(0>a?b:0);return this.pushStack(c>=0&&b>c?[this[c]]:[])},end:function(){return this.prevObject||this.constructor(null)},push:f,sort:c.sort,splice:c.splice},m.extend=m.fn.extend=function(){var a,b,c,d,e,f,g=arguments[0]||{},h=1,i=arguments.length,j=!1;for("boolean"==typeof g&&(j=g,g=arguments[h]||{},h++),"object"==typeof g||m.isFunction(g)||(g={}),h===i&&(g=this,h--);i>h;h++)if(null!=(e=arguments[h]))for(d in e)a=g[d],c=e[d],g!==c&&(j&&c&&(m.isPlainObject(c)||(b=m.isArray(c)))?(b?(b=!1,f=a&&m.isArray(a)?a:[]):f=a&&m.isPlainObject(a)?a:{},g[d]=m.extend(j,f,c)):void 0!==c&&(g[d]=c));return g},m.extend({expando:"jQuery"+(l+Math.random()).replace(/\D/g,""),isReady:!0,error:function(a){throw new Error(a)},noop:function(){},isFunction:function(a){return"function"===m.type(a)},isArray:Array.isArray||function(a){return"array"===m.type(a)},isWindow:function(a){return null!=a&&a==a.window},isNumeric:function(a){return!m.isArray(a)&&a-parseFloat(a)+1>=0},isEmptyObject:function(a){var b;for(b in a)return!1;return!0},isPlainObject:function(a){var b;if(!a||"object"!==m.type(a)||a.nodeType||m.isWindow(a))return!1;try{if(a.constructor&&!j.call(a,"constructor")&&!j.call(a.constructor.prototype,"isPrototypeOf"))return!1}catch(c){return!1}if(k.ownLast)for(b in a)return j.call(a,b);for(b in a);return void 0===b||j.call(a,b)},type:function(a){return null==a?a+"":"object"==typeof a||"function"==typeof a?h[i.call(a)]||"object":typeof a},globalEval:function(b){b&&m.trim(b)&&(a.execScript||function(b){a.eval.call(a,b)})(b)},camelCase:function(a){return a.replace(o,"ms-").replace(p,q)},nodeName:function(a,b){return a.nodeName&&a.nodeName.toLowerCase()===b.toLowerCase()},each:function(a,b,c){var d,e=0,f=a.length,g=r(a);if(c){if(g){for(;f>e;e++)if(d=b.apply(a[e],c),d===!1)break}else for(e in a)if(d=b.apply(a[e],c),d===!1)break}else if(g){for(;f>e;e++)if(d=b.call(a[e],e,a[e]),d===!1)break}else for(e in a)if(d=b.call(a[e],e,a[e]),d===!1)break;return a},trim:function(a){return null==a?"":(a+"").replace(n,"")},makeArray:function(a,b){var c=b||[];return null!=a&&(r(Object(a))?m.merge(c,"string"==typeof a?[a]:a):f.call(c,a)),c},inArray:function(a,b,c){var d;if(b){if(g)return g.call(b,a,c);for(d=b.length,c=c?0>c?Math.max(0,d+c):c:0;d>c;c++)if(c in b&&b[c]===a)return c}return-1},merge:function(a,b){var c=+b.length,d=0,e=a.length;while(c>d)a[e++]=b[d++];if(c!==c)while(void 0!==b[d])a[e++]=b[d++];return a.length=e,a},grep:function(a,b,c){for(var d,e=[],f=0,g=a.length,h=!c;g>f;f++)d=!b(a[f],f),d!==h&&e.push(a[f]);return e},map:function(a,b,c){var d,f=0,g=a.length,h=r(a),i=[];if(h)for(;g>f;f++)d=b(a[f],f,c),null!=d&&i.push(d);else for(f in a)d=b(a[f],f,c),null!=d&&i.push(d);return e.apply([],i)},guid:1,proxy:function(a,b){var c,e,f;return"string"==typeof b&&(f=a[b],b=a,a=f),m.isFunction(a)?(c=d.call(arguments,2),e=function(){return a.apply(b||this,c.concat(d.call(arguments)))},e.guid=a.guid=a.guid||m.guid++,e):void 0},now:function(){return+new Date},support:k}),m.each("Boolean Number String Function Array Date RegExp Object Error".split(" "),function(a,b){h["[object "+b+"]"]=b.toLowerCase()});function r(a){var b=a.length,c=m.type(a);return"function"===c||m.isWindow(a)?!1:1===a.nodeType&&b?!0:"array"===c||0===b||"number"==typeof b&&b>0&&b-1 in a}var s=function(a){var b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u="sizzle"+1*new Date,v=a.document,w=0,x=0,y=hb(),z=hb(),A=hb(),B=function(a,b){return a===b&&(l=!0),0},C=1<<31,D={}.hasOwnProperty,E=[],F=E.pop,G=E.push,H=E.push,I=E.slice,J=function(a,b){for(var c=0,d=a.length;d>c;c++)if(a[c]===b)return c;return-1},K="checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",L="[\\x20\\t\\r\\n\\f]",M="(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+",N=M.replace("w","w#"),O="\\["+L+"*("+M+")(?:"+L+"*([*^$|!~]?=)"+L+"*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|("+N+"))|)"+L+"*\\]",P=":("+M+")(?:\\((('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|((?:\\\\.|[^\\\\()[\\]]|"+O+")*)|.*)\\)|)",Q=new RegExp(L+"+","g"),R=new RegExp("^"+L+"+|((?:^|[^\\\\])(?:\\\\.)*)"+L+"+$","g"),S=new RegExp("^"+L+"*,"+L+"*"),T=new RegExp("^"+L+"*([>+~]|"+L+")"+L+"*"),U=new RegExp("="+L+"*([^\\]'\"]*?)"+L+"*\\]","g"),V=new RegExp(P),W=new RegExp("^"+N+"$"),X={ID:new RegExp("^#("+M+")"),CLASS:new RegExp("^\\.("+M+")"),TAG:new RegExp("^("+M.replace("w","w*")+")"),ATTR:new RegExp("^"+O),PSEUDO:new RegExp("^"+P),CHILD:new RegExp("^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\("+L+"*(even|odd|(([+-]|)(\\d*)n|)"+L+"*(?:([+-]|)"+L+"*(\\d+)|))"+L+"*\\)|)","i"),bool:new RegExp("^(?:"+K+")$","i"),needsContext:new RegExp("^"+L+"*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\("+L+"*((?:-\\d)?\\d*)"+L+"*\\)|)(?=[^-]|$)","i")},Y=/^(?:input|select|textarea|button)$/i,Z=/^h\d$/i,$=/^[^{]+\{\s*\[native \w/,_=/^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,ab=/[+~]/,bb=/'|\\/g,cb=new RegExp("\\\\([\\da-f]{1,6}"+L+"?|("+L+")|.)","ig"),db=function(a,b,c){var d="0x"+b-65536;return d!==d||c?b:0>d?String.fromCharCode(d+65536):String.fromCharCode(d>>10|55296,1023&d|56320)},eb=function(){m()};try{H.apply(E=I.call(v.childNodes),v.childNodes),E[v.childNodes.length].nodeType}catch(fb){H={apply:E.length?function(a,b){G.apply(a,I.call(b))}:function(a,b){var c=a.length,d=0;while(a[c++]=b[d++]);a.length=c-1}}}function gb(a,b,d,e){var f,h,j,k,l,o,r,s,w,x;if((b?b.ownerDocument||b:v)!==n&&m(b),b=b||n,d=d||[],k=b.nodeType,"string"!=typeof a||!a||1!==k&&9!==k&&11!==k)return d;if(!e&&p){if(11!==k&&(f=_.exec(a)))if(j=f[1]){if(9===k){if(h=b.getElementById(j),!h||!h.parentNode)return d;if(h.id===j)return d.push(h),d}else if(b.ownerDocument&&(h=b.ownerDocument.getElementById(j))&&t(b,h)&&h.id===j)return d.push(h),d}else{if(f[2])return H.apply(d,b.getElementsByTagName(a)),d;if((j=f[3])&&c.getElementsByClassName)return H.apply(d,b.getElementsByClassName(j)),d}if(c.qsa&&(!q||!q.test(a))){if(s=r=u,w=b,x=1!==k&&a,1===k&&"object"!==b.nodeName.toLowerCase()){o=g(a),(r=b.getAttribute("id"))?s=r.replace(bb,"\\$&"):b.setAttribute("id",s),s="[id='"+s+"'] ",l=o.length;while(l--)o[l]=s+rb(o[l]);w=ab.test(a)&&pb(b.parentNode)||b,x=o.join(",")}if(x)try{return H.apply(d,w.querySelectorAll(x)),d}catch(y){}finally{r||b.removeAttribute("id")}}}return i(a.replace(R,"$1"),b,d,e)}function hb(){var a=[];function b(c,e){return a.push(c+" ")>d.cacheLength&&delete b[a.shift()],b[c+" "]=e}return b}function ib(a){return a[u]=!0,a}function jb(a){var b=n.createElement("div");try{return!!a(b)}catch(c){return!1}finally{b.parentNode&&b.parentNode.removeChild(b),b=null}}function kb(a,b){var c=a.split("|"),e=a.length;while(e--)d.attrHandle[c[e]]=b}function lb(a,b){var c=b&&a,d=c&&1===a.nodeType&&1===b.nodeType&&(~b.sourceIndex||C)-(~a.sourceIndex||C);if(d)return d;if(c)while(c=c.nextSibling)if(c===b)return-1;return a?1:-1}function mb(a){return function(b){var c=b.nodeName.toLowerCase();return"input"===c&&b.type===a}}function nb(a){return function(b){var c=b.nodeName.toLowerCase();return("input"===c||"button"===c)&&b.type===a}}function ob(a){return ib(function(b){return b=+b,ib(function(c,d){var e,f=a([],c.length,b),g=f.length;while(g--)c[e=f[g]]&&(c[e]=!(d[e]=c[e]))})})}function pb(a){return a&&"undefined"!=typeof a.getElementsByTagName&&a}c=gb.support={},f=gb.isXML=function(a){var b=a&&(a.ownerDocument||a).documentElement;return b?"HTML"!==b.nodeName:!1},m=gb.setDocument=function(a){var b,e,g=a?a.ownerDocument||a:v;return g!==n&&9===g.nodeType&&g.documentElement?(n=g,o=g.documentElement,e=g.defaultView,e&&e!==e.top&&(e.addEventListener?e.addEventListener("unload",eb,!1):e.attachEvent&&e.attachEvent("onunload",eb)),p=!f(g),c.attributes=jb(function(a){return a.className="i",!a.getAttribute("className")}),c.getElementsByTagName=jb(function(a){return a.appendChild(g.createComment("")),!a.getElementsByTagName("*").length}),c.getElementsByClassName=$.test(g.getElementsByClassName),c.getById=jb(function(a){return o.appendChild(a).id=u,!g.getElementsByName||!g.getElementsByName(u).length}),c.getById?(d.find.ID=function(a,b){if("undefined"!=typeof b.getElementById&&p){var c=b.getElementById(a);return c&&c.parentNode?[c]:[]}},d.filter.ID=function(a){var b=a.replace(cb,db);return function(a){return a.getAttribute("id")===b}}):(delete d.find.ID,d.filter.ID=function(a){var b=a.replace(cb,db);return function(a){var c="undefined"!=typeof a.getAttributeNode&&a.getAttributeNode("id");return c&&c.value===b}}),d.find.TAG=c.getElementsByTagName?function(a,b){return"undefined"!=typeof b.getElementsByTagName?b.getElementsByTagName(a):c.qsa?b.querySelectorAll(a):void 0}:function(a,b){var c,d=[],e=0,f=b.getElementsByTagName(a);if("*"===a){while(c=f[e++])1===c.nodeType&&d.push(c);return d}return f},d.find.CLASS=c.getElementsByClassName&&function(a,b){return p?b.getElementsByClassName(a):void 0},r=[],q=[],(c.qsa=$.test(g.querySelectorAll))&&(jb(function(a){o.appendChild(a).innerHTML="<a id='"+u+"'></a><select id='"+u+"-\f]' msallowcapture=''><option selected=''></option></select>",a.querySelectorAll("[msallowcapture^='']").length&&q.push("[*^$]="+L+"*(?:''|\"\")"),a.querySelectorAll("[selected]").length||q.push("\\["+L+"*(?:value|"+K+")"),a.querySelectorAll("[id~="+u+"-]").length||q.push("~="),a.querySelectorAll(":checked").length||q.push(":checked"),a.querySelectorAll("a#"+u+"+*").length||q.push(".#.+[+~]")}),jb(function(a){var b=g.createElement("input");b.setAttribute("type","hidden"),a.appendChild(b).setAttribute("name","D"),a.querySelectorAll("[name=d]").length&&q.push("name"+L+"*[*^$|!~]?="),a.querySelectorAll(":enabled").length||q.push(":enabled",":disabled"),a.querySelectorAll("*,:x"),q.push(",.*:")})),(c.matchesSelector=$.test(s=o.matches||o.webkitMatchesSelector||o.mozMatchesSelector||o.oMatchesSelector||o.msMatchesSelector))&&jb(function(a){c.disconnectedMatch=s.call(a,"div"),s.call(a,"[s!='']:x"),r.push("!=",P)}),q=q.length&&new RegExp(q.join("|")),r=r.length&&new RegExp(r.join("|")),b=$.test(o.compareDocumentPosition),t=b||$.test(o.contains)?function(a,b){var c=9===a.nodeType?a.documentElement:a,d=b&&b.parentNode;return a===d||!(!d||1!==d.nodeType||!(c.contains?c.contains(d):a.compareDocumentPosition&&16&a.compareDocumentPosition(d)))}:function(a,b){if(b)while(b=b.parentNode)if(b===a)return!0;return!1},B=b?function(a,b){if(a===b)return l=!0,0;var d=!a.compareDocumentPosition-!b.compareDocumentPosition;return d?d:(d=(a.ownerDocument||a)===(b.ownerDocument||b)?a.compareDocumentPosition(b):1,1&d||!c.sortDetached&&b.compareDocumentPosition(a)===d?a===g||a.ownerDocument===v&&t(v,a)?-1:b===g||b.ownerDocument===v&&t(v,b)?1:k?J(k,a)-J(k,b):0:4&d?-1:1)}:function(a,b){if(a===b)return l=!0,0;var c,d=0,e=a.parentNode,f=b.parentNode,h=[a],i=[b];if(!e||!f)return a===g?-1:b===g?1:e?-1:f?1:k?J(k,a)-J(k,b):0;if(e===f)return lb(a,b);c=a;while(c=c.parentNode)h.unshift(c);c=b;while(c=c.parentNode)i.unshift(c);while(h[d]===i[d])d++;return d?lb(h[d],i[d]):h[d]===v?-1:i[d]===v?1:0},g):n},gb.matches=function(a,b){return gb(a,null,null,b)},gb.matchesSelector=function(a,b){if((a.ownerDocument||a)!==n&&m(a),b=b.replace(U,"='$1']"),!(!c.matchesSelector||!p||r&&r.test(b)||q&&q.test(b)))try{var d=s.call(a,b);if(d||c.disconnectedMatch||a.document&&11!==a.document.nodeType)return d}catch(e){}return gb(b,n,null,[a]).length>0},gb.contains=function(a,b){return(a.ownerDocument||a)!==n&&m(a),t(a,b)},gb.attr=function(a,b){(a.ownerDocument||a)!==n&&m(a);var e=d.attrHandle[b.toLowerCase()],f=e&&D.call(d.attrHandle,b.toLowerCase())?e(a,b,!p):void 0;return void 0!==f?f:c.attributes||!p?a.getAttribute(b):(f=a.getAttributeNode(b))&&f.specified?f.value:null},gb.error=function(a){throw new Error("Syntax error, unrecognized expression: "+a)},gb.uniqueSort=function(a){var b,d=[],e=0,f=0;if(l=!c.detectDuplicates,k=!c.sortStable&&a.slice(0),a.sort(B),l){while(b=a[f++])b===a[f]&&(e=d.push(f));while(e--)a.splice(d[e],1)}return k=null,a},e=gb.getText=function(a){var b,c="",d=0,f=a.nodeType;if(f){if(1===f||9===f||11===f){if("string"==typeof a.textContent)return a.textContent;for(a=a.firstChild;a;a=a.nextSibling)c+=e(a)}else if(3===f||4===f)return a.nodeValue}else while(b=a[d++])c+=e(b);return c},d=gb.selectors={cacheLength:50,createPseudo:ib,match:X,attrHandle:{},find:{},relative:{">":{dir:"parentNode",first:!0}," ":{dir:"parentNode"},"+":{dir:"previousSibling",first:!0},"~":{dir:"previousSibling"}},preFilter:{ATTR:function(a){return a[1]=a[1].replace(cb,db),a[3]=(a[3]||a[4]||a[5]||"").replace(cb,db),"~="===a[2]&&(a[3]=" "+a[3]+" "),a.slice(0,4)},CHILD:function(a){return a[1]=a[1].toLowerCase(),"nth"===a[1].slice(0,3)?(a[3]||gb.error(a[0]),a[4]=+(a[4]?a[5]+(a[6]||1):2*("even"===a[3]||"odd"===a[3])),a[5]=+(a[7]+a[8]||"odd"===a[3])):a[3]&&gb.error(a[0]),a},PSEUDO:function(a){var b,c=!a[6]&&a[2];return X.CHILD.test(a[0])?null:(a[3]?a[2]=a[4]||a[5]||"":c&&V.test(c)&&(b=g(c,!0))&&(b=c.indexOf(")",c.length-b)-c.length)&&(a[0]=a[0].slice(0,b),a[2]=c.slice(0,b)),a.slice(0,3))}},filter:{TAG:function(a){var b=a.replace(cb,db).toLowerCase();return"*"===a?function(){return!0}:function(a){return a.nodeName&&a.nodeName.toLowerCase()===b}},CLASS:function(a){var b=y[a+" "];return b||(b=new RegExp("(^|"+L+")"+a+"("+L+"|$)"))&&y(a,function(a){return b.test("string"==typeof a.className&&a.className||"undefined"!=typeof a.getAttribute&&a.getAttribute("class")||"")})},ATTR:function(a,b,c){return function(d){var e=gb.attr(d,a);return null==e?"!="===b:b?(e+="","="===b?e===c:"!="===b?e!==c:"^="===b?c&&0===e.indexOf(c):"*="===b?c&&e.indexOf(c)>-1:"$="===b?c&&e.slice(-c.length)===c:"~="===b?(" "+e.replace(Q," ")+" ").indexOf(c)>-1:"|="===b?e===c||e.slice(0,c.length+1)===c+"-":!1):!0}},CHILD:function(a,b,c,d,e){var f="nth"!==a.slice(0,3),g="last"!==a.slice(-4),h="of-type"===b;return 1===d&&0===e?function(a){return!!a.parentNode}:function(b,c,i){var j,k,l,m,n,o,p=f!==g?"nextSibling":"previousSibling",q=b.parentNode,r=h&&b.nodeName.toLowerCase(),s=!i&&!h;if(q){if(f){while(p){l=b;while(l=l[p])if(h?l.nodeName.toLowerCase()===r:1===l.nodeType)return!1;o=p="only"===a&&!o&&"nextSibling"}return!0}if(o=[g?q.firstChild:q.lastChild],g&&s){k=q[u]||(q[u]={}),j=k[a]||[],n=j[0]===w&&j[1],m=j[0]===w&&j[2],l=n&&q.childNodes[n];while(l=++n&&l&&l[p]||(m=n=0)||o.pop())if(1===l.nodeType&&++m&&l===b){k[a]=[w,n,m];break}}else if(s&&(j=(b[u]||(b[u]={}))[a])&&j[0]===w)m=j[1];else while(l=++n&&l&&l[p]||(m=n=0)||o.pop())if((h?l.nodeName.toLowerCase()===r:1===l.nodeType)&&++m&&(s&&((l[u]||(l[u]={}))[a]=[w,m]),l===b))break;return m-=e,m===d||m%d===0&&m/d>=0}}},PSEUDO:function(a,b){var c,e=d.pseudos[a]||d.setFilters[a.toLowerCase()]||gb.error("unsupported pseudo: "+a);return e[u]?e(b):e.length>1?(c=[a,a,"",b],d.setFilters.hasOwnProperty(a.toLowerCase())?ib(function(a,c){var d,f=e(a,b),g=f.length;while(g--)d=J(a,f[g]),a[d]=!(c[d]=f[g])}):function(a){return e(a,0,c)}):e}},pseudos:{not:ib(function(a){var b=[],c=[],d=h(a.replace(R,"$1"));return d[u]?ib(function(a,b,c,e){var f,g=d(a,null,e,[]),h=a.length;while(h--)(f=g[h])&&(a[h]=!(b[h]=f))}):function(a,e,f){return b[0]=a,d(b,null,f,c),b[0]=null,!c.pop()}}),has:ib(function(a){return function(b){return gb(a,b).length>0}}),contains:ib(function(a){return a=a.replace(cb,db),function(b){return(b.textContent||b.innerText||e(b)).indexOf(a)>-1}}),lang:ib(function(a){return W.test(a||"")||gb.error("unsupported lang: "+a),a=a.replace(cb,db).toLowerCase(),function(b){var c;do if(c=p?b.lang:b.getAttribute("xml:lang")||b.getAttribute("lang"))return c=c.toLowerCase(),c===a||0===c.indexOf(a+"-");while((b=b.parentNode)&&1===b.nodeType);return!1}}),target:function(b){var c=a.location&&a.location.hash;return c&&c.slice(1)===b.id},root:function(a){return a===o},focus:function(a){return a===n.activeElement&&(!n.hasFocus||n.hasFocus())&&!!(a.type||a.href||~a.tabIndex)},enabled:function(a){return a.disabled===!1},disabled:function(a){return a.disabled===!0},checked:function(a){var b=a.nodeName.toLowerCase();return"input"===b&&!!a.checked||"option"===b&&!!a.selected},selected:function(a){return a.parentNode&&a.parentNode.selectedIndex,a.selected===!0},empty:function(a){for(a=a.firstChild;a;a=a.nextSibling)if(a.nodeType<6)return!1;return!0},parent:function(a){return!d.pseudos.empty(a)},header:function(a){return Z.test(a.nodeName)},input:function(a){return Y.test(a.nodeName)},button:function(a){var b=a.nodeName.toLowerCase();return"input"===b&&"button"===a.type||"button"===b},text:function(a){var b;return"input"===a.nodeName.toLowerCase()&&"text"===a.type&&(null==(b=a.getAttribute("type"))||"text"===b.toLowerCase())},first:ob(function(){return[0]}),last:ob(function(a,b){return[b-1]}),eq:ob(function(a,b,c){return[0>c?c+b:c]}),even:ob(function(a,b){for(var c=0;b>c;c+=2)a.push(c);return a}),odd:ob(function(a,b){for(var c=1;b>c;c+=2)a.push(c);return a}),lt:ob(function(a,b,c){for(var d=0>c?c+b:c;--d>=0;)a.push(d);return a}),gt:ob(function(a,b,c){for(var d=0>c?c+b:c;++d<b;)a.push(d);return a})}},d.pseudos.nth=d.pseudos.eq;for(b in{radio:!0,checkbox:!0,file:!0,password:!0,image:!0})d.pseudos[b]=mb(b);for(b in{submit:!0,reset:!0})d.pseudos[b]=nb(b);function qb(){}qb.prototype=d.filters=d.pseudos,d.setFilters=new qb,g=gb.tokenize=function(a,b){var c,e,f,g,h,i,j,k=z[a+" "];if(k)return b?0:k.slice(0);h=a,i=[],j=d.preFilter;while(h){(!c||(e=S.exec(h)))&&(e&&(h=h.slice(e[0].length)||h),i.push(f=[])),c=!1,(e=T.exec(h))&&(c=e.shift(),f.push({value:c,type:e[0].replace(R," ")}),h=h.slice(c.length));for(g in d.filter)!(e=X[g].exec(h))||j[g]&&!(e=j[g](e))||(c=e.shift(),f.push({value:c,type:g,matches:e}),h=h.slice(c.length));if(!c)break}return b?h.length:h?gb.error(a):z(a,i).slice(0)};function rb(a){for(var b=0,c=a.length,d="";c>b;b++)d+=a[b].value;return d}function sb(a,b,c){var d=b.dir,e=c&&"parentNode"===d,f=x++;return b.first?function(b,c,f){while(b=b[d])if(1===b.nodeType||e)return a(b,c,f)}:function(b,c,g){var h,i,j=[w,f];if(g){while(b=b[d])if((1===b.nodeType||e)&&
展开
收起
1
条回答
写回答
写回答
-
https://developer.aliyun.com/profile/5yerqm5bn5yqg?spm=a2c6h.12873639.0.0.6eae304abcjaIB200元红包？######
我在一品威客上发布了这个需求，200元。用bigliu8888搜，能搞定我选你。######引用来自“IT落花时节又逢君”的评论
200元红包？我的qq：635200611，能搞定问题的话，qq我。到一品威客接我单。谢谢！######不清楚这个jq插件的原理，但是看到这个onload似乎被执行了很多次，但是你拖拽交换一次以后，ratio并没有交换，所以简单点的改法就是每次拖拽完把ratio改一下就可以了，不要把ratio的计算放到img的onload里面######引用来自“IT落花时节又逢君”的评论
200元红包？引用来自“bigliu8888”的评论
我在一品威客上发布了这个需求，200元。用bigliu8888搜，能搞定我选你。引用来自“zabcd117”的评论
不清楚这个jq插件的原理，但是看到这个onload似乎被执行了很多次，但是你拖拽交换一次以后，ratio并没有交换，所以简单点的改法就是每次拖拽完把ratio改一下就可以了，不要把ratio的计算放到img的onload里面onload没有被多次执行，我在onload中设置了console打印，没有相应的打印信息出来。 onload只是在图片初始load的时候被执行了。
而且ratio必须和每个图片绑定，因为是该图片的初始宽高比例。
######我在debug看了，当你开始拖拽的时候，onload就被执行一次，你可以看看嘛，设置下dom断点就很明显了2020-06-03 20:54:23赞同 展开评论 打赏
问答分类：
版权声明：本文内容由阿里云实名注册用户自发贡献，版权归原作者所有，阿里云开发者社区不拥有其著作权，亦不承担相应法律责任。具体规则请查看《阿里云开发者社区用户服务协议》和《阿里云开发者社区知识产权保护指引》。如果您发现本社区中有涉嫌抄袭的内容，填写侵权投诉表单进行举报，一经查实，本社区将立刻删除涉嫌侵权内容。
相关问答
问答排行榜
最热
最新
推荐问答
