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168.Excel列表名称.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
    <script>
     var convertToTitle = function(n) {
     let b = n;
     let str = "";
     let Arr = ["A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"];
     for(;b!==0;){
        str = Arr[parseInt((b-1)%26)]+str;
        // let c = b-1;
        b = Math.floor((b-1)/26);
        alert(b);
     }
     return str;
};
alert(convertToTitle(27));
    </script>
</body>
</html>