_滑鼠移動跟隨效果

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上載者:User

標籤:定時器   font   elements   char   element   function   for   top   ack   

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>_滑鼠移動跟隨效果</title>
<style>
div {
width: 50px;
height: 50px;
border-radius: 50%;
position: absolute;
text-align: center;
font-size: 30px;
color: #fff;
}
</style>
<script>
//讓第一個盒子直接跟隨滑鼠位置
//後面的盒子每隔幾毫米跟隨前一個盒子變化位置
window.onload = function(){
var allDiv = document.getElementsByTagName("div");//div數組
document.onmousemove = function(e){
e = e || window.event;//相容性
allDiv[0].style.top = e.clientY + "px";
allDiv[0].style.left = e.clientX + "px";
}
//設定定時器
setInterval(function(){
for(var i=allDiv.length-1;i>0;i--){
allDiv[i].style.top = allDiv[i-1].style.top;
allDiv[i].style.left = allDiv[i-1].style.left;
allDiv[i].style.backgroundColor = randomColor();
}
},20)
//設定隨機顏色
function randomColor(){
var str = "0123456789abcdef";
var bgColor = "#";
for(var i = 0;i<6;i++){
var temp = parseInt(str.length*Math.random());
bgColor += temp;
}
return bgColor;
}
}

</script>



</head>
<body>
<div>1</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>5</div>
<div>6</div>
<div>7</div>
<div>8</div>
<div>9</div>
<div>10</div>
<div>11</div>
<div>12</div>
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<div>15</div>
<div>16</div>
<div>17</div>
<div>18</div>
<div>19</div>
<div>20</div>
<div>21</div>
<div>22</div>
<div>23</div>
<div>24</div>
<div>25</div>
<div>26</div>
<div>27</div>
<div>28</div>
<div>29</div>
<div>30</div>
<div>31</div>
<div>32</div>
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<div>34</div>
<div>35</div>
<div>36</div>
<div>37</div>
<div>38</div>
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<div>40</div>
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<div>42</div>
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<div>44</div>
<div>45</div>
<div>46</div>
<div>47</div>
<div>48</div>
<div>49</div>
<div>50</div>
</body>
</html>

_滑鼠移動跟隨效果

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