本文為大家分享了一個簡單的鼠標模擬案例，供大家參考，具體實現內容如下
如何實現捕抓鼠標事件，當鼠標滑動時，獲取當前鼠標的坐標，接著在一個透明區域里綁定捕抓的位移，這樣就能在模擬的透明區域里實現鼠標滑動的模型。
效果圖：
HTML代碼：
<!DOCTYPE html><html > <head> <meta charset="UTF-8"> <title> the mouse </title> <link rel="stylesheet" href="css/new.css"> </head> <body> <div class="main"> <div class="content"> <div class="content-nav-top"> <span onclick = 'koringz.createclick1(0)'>默認</span> <span onclick = 'koringz.createclick1(50)'>圓</span> </div> <div class="content-nav-left"> <span onclick = 'koringz.createclick2 (0.25) '>0.25</span> <span onclick = 'koringz.createclick2 (0.5) '>0.5</span> <span onclick = 'koringz.createclick2 (0.75)'>0.75</span> <span onclick = 'koringz.createclick2 (1) '>1</span> </div> <div class="box">鼠標感應器(the mouse sensor)</div> <div class="block"> <div class='block_case'></div> </div> </div> </div> <script type="text/javascript" src="js/demo.min/demo.min.js"></script> </body></html>
CSS代碼：
* { margin: 0; padding: 0; box-sizing: border-box;}body { position: absolute; text-align: center; height: 100%; width: 100%;}.main{ position: relative; margin: 0 auto; height: 100%; background-color: rgb(48, 70, 82)}.main .content{ position:absolute; display: inline-block; top:50%; left:50%; margin-left: -300px; margin-top: -150px; width: 600px; height: 300px; line-height: 300px; /*overflow: hidden;*/ background: radial-gradient(ellipse farthest-corner, rgb(115, 176, 198) 0%, #888 100%); background: -webkit-radial-gradient(ellipse farthest-corner, rgb(115, 176, 198) 0%, #888 100%); box-shadow: 2px 3px 8px rgba(67, 50, 124 ,.6),0px 0px 8px rgba(67, 50, 124 ,.6);}.main .content .content-nav-top{ display: none; position: absolute; margin-top: -50px; height: 50px; width: 300px; }.main .content .content-nav-top >span{ display: block; float: left; font-size: 16px; font-weight: normal; margin-right:1px; width: 50px; height: 50px; line-height: 50px; background-color: rgba(251, 214, 146,.3); box-shadow: 0px 4px 13px rgb(222,222,222,1); cursor: pointer;}.main .content .content-nav-top >span:nth-child(1){ border-radius:0 ; }.main .content .content-nav-top >span:nth-child(2){ border-radius:50% ; }.main .content .content-nav-top >span:nth-child(3){ border-radius:0; }.main .content .content-nav-top >span:nth-child(4){ border-radius: 50% ; }.main .content .content-nav-left{ display: none; position: absolute; margin-left: -50px; width: 50px; height: 300px; }.main .content .content-nav-left >span{ display: block; font-size: 16px; font-weight: normal; margin-bottom:1px; width: 50px; height: 50px; line-height: 50px; background-color: rgb(85, 145, 140); box-shadow: 0px 4px 13px rgb(222,222,222,1); border-radius:50% 0 0 50% ; cursor: pointer;}.box{ position: relative; float: left; width: 49.9%; height: 100%; border-right-style: solid; border-right-width: 1px; border-right-color: rgba(211,211,211,.5); color:rgb(99, 84, 168); text-shadow: 0px 1px 0px #888,1px 0px 0px #888,0px 0px 1px #888; }.block{ float: right; width: 50%; height: 100%;}
JS代碼:
var koringz = (function(){ var x, y, getmain, getcontent, getbox, getblock, getblock_case, getnav_top, block_case_margin_top, block_case_margin_left, block_casetostring1, block_casetostring2, block_casesubstring1, block_casesubstring2, istouch; getmain = document.querySelector('.main'); getcontent = getmain.querySelector('.content'); getbox = getcontent.querySelector('.box'); getblock = getcontent.querySelector('.block'); getblock_case = getblock.querySelector('.block_case'); getnav_top = getcontent.querySelector('.content-nav-top'); getnav_left = getcontent.querySelector('.content-nav-left'); function get_box() { w_getbox_distance = getbox.offsetWidth; h_getbox_distance = getbox.offsetHeight; istouch = 'ontouchstart' in window; getbox.addEventListener(istouch?'touchmove':'mousemove',mouseevent,false); getbox.addEventListener(istouch?'touchmove':'mousemove',nav,false) } function nav () { return new_nav(); } var new_nav = function () { getnav_top.style.display = 'block'; getnav_left.style.display = 'block'; } function move_box() { getblock_case.style.width = '0px'; getblock_case.style.height = '0px'; block_case_margin_left = getblock_case.style.marginLeft = getblock.offsetWidth/2 + 'px';//子節點 block_case_margin_top = getblock_case.style.marginTop = getblock.offsetHeight/2 + 'px'; block_casetostring1 = block_case_margin_left.toString();//值轉化為字符串 block_casetostring2 = block_case_margin_top.toString(); block_casesubstring1 = block_casetostring1.substring(0,3); block_casesubstring2 = block_casetostring2.substring(0,3); } var mouseevent = function () { mouseEvent(event); } function mouseEvent(e){ var zore = 0, val = 1; if(istouch){ x = e.touches[zore].pageX; y = e.touches[zore].pageY; e.preventDefault(); } else if(!istouch){ x = w_getbox_distance/2 != undefined ? e.offsetX:e.layerX; y = h_getbox_distance/2 != undefined ? e.offsetY:e.layerY; } if(val = true){ getblock_case.style.width = x + 'px';//獲得了mouse劃過的位置 getblock_case.style.height = y + 'px'; getblock_case.style.marginLeft = (block_casesubstring1-x/2) +'px'; getblock_case.style.marginTop = (block_casesubstring2-y/2) +'px'; getblock_case.style.backgroundColor = "rgba(147, 106, 77,1)"; } } (function (){ window.onload = function(){ move_box(); get_box() } })() var click =function () { this.borderradius = function(num) { if(typeof num == 'number'){ if(num == 0){ getblock_case.style.borderRadius = num; } else if(num > 0){ getblock_case.style.borderRadius = num +'%'; } else{ return false; } } } this.opacitas = function (num) { if(typeof num == 'number'){ getblock_case.style.opacity = num; } else{ return false; } } } var Click = new click(); return { createclick1 :Click.borderradius, createclick2 :Click.opacitas }})()這里的鼠標箭頭也可換成自己喜歡的圖標，模擬鼠標區域的顏色也可自由變換，模擬區域的效果也可是點狀的，也可以是線狀的，動畫效果等等，這個自由發揮吧。
以上就是針對JavaScript鼠標響應事件進行的詳細介紹，希望對大家的學習有所幫助。
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