本文为大家分享了一个简单的鼠标模拟案例，供大家参考，具体实现内容如下

如何实现捕抓鼠标事件，当鼠标滑动时，获取当前鼠标的坐标，接着在一个透明区域里绑定捕抓的位移，这样就能在模拟的透明区域里实现鼠标滑动的模型。

效果图：

HTML代码：

CSS代码：

* {

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代码:

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';//子节点

block_case_margin_top = getblock_case.style.marginTop = getblock.offsetHeight/2 + 'px';

block_casetostring1 = block_case_margin_left.toString();//值转化为字符串

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';//获得了mouse划过的位置

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

}

})()

这里的鼠标箭头也可换成自己喜欢的图标，模拟鼠标区域的颜色也可自由变换，模拟区域的效果也可是点状的，也可以是线状的，动画效果等等，这个自由发挥吧。

以上就是针对JavaScript鼠标响应事件进行的详细介绍，希望对大家的学习有所帮助。