JS 小脚本汇聚

1. 根据文件length展示文件大小

   if (bytes === 0) 

   return ‘0 B‘;

   var k = 1024,

   sizes = [‘B‘, ‘KB‘, ‘MB‘, ‘GB‘, ‘TB‘, ‘PB‘, ‘EB‘, ‘ZB‘, ‘YB‘],

   i = Math.floor(Math.log(bytes) / Math.log(k));

   return (bytes / Math.pow(k, i)).toPrecision(3) + sizes[i];

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JS 小脚本汇聚

原文地址：https://www.cnblogs.com/ytxiao/p/9070456.html