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  • 生成500个0-1000的随机数&&数组查找—小练习

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    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <script type="text/javascript">
    window.onload = function ()
    {
        var obody = document.getElementsByTagName('body')[0];
        for (var i = 0; i < 550; i++)
        {
            
            obody.innerHTML += Math.round(Math.random()*1000)+ ' ';
            
        }
    } 
    </script>
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    <meta charset="utf-8">
    <title>无标题文档</title>
    <script type="text/javascript">
    window.onload = function ()
    {
        var arr = [1,2,3,4,5,6,7,8,9];
        var num = 3;
        alert(arr.join('').indexOf(num));
    };
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  • 原文地址:https://www.cnblogs.com/mayufo/p/4189458.html
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