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  • js中:有1、2、3、4个数字,能组成多少个互不相同且无重复数字的三位数?

    <!DOCTYPE html>
    <html lang="en">
    <head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script type="text/javascript">
    for(var i = 1; i < 5; i ++){
    for(var j = 1; j < 5; j ++){
    for(var k = 1; k < 5; k ++){
    if(i != j && j != k && k != i){
    document.write("" + i + j + k + "<br />");
    }
    }
    }
    }
    </script>
    </head>
    <body>

    </body>
    </html>
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  • 原文地址:https://www.cnblogs.com/SmallPotatoIT/p/5639953.html
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