php和js實現轉換檔大小為人性化可讀的方式

function my_formatSize($size){ $size = doubleval($size); $rank =0; $rankchar ='Bytes'; while($size>1024){ $size = $size/1024; $rank++; } if($rank==1){ $rankchar="KB"; } else if($rank==2){ $rankchar="MB"; } else if($rank==3){ $rankchar="GB"; } $size = number_format($size, 2, '.', ''); return "".$size." ".$rankchar; } 複製代碼 二、js實現代碼 function my_formatSize($size){ var size = parseFloat($size); var rank =0; var rankchar ='Bytes'; while(size>1024){ size = size/1024; rank++; } if(rank==1){ rankchar="KB"; } else if(rank==2){ rankchar="MB"; } else if(rank==3){ rankchar="GB"; } return size.toFixed(2)+ " "+ rankchar; } ?> 複製代碼 註：代碼中保留2位小數。

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