abstrak：<?php $lang =[             ["html"=>"前臺(tái)語(yǔ)言","難易度"=>60],       &nb

<?php


$lang =[
            ["html"=>"前臺(tái)語(yǔ)言","難易度"=>60],
            ["css"=>"前臺(tái)樣式","難易度"=>50],
            ["javascript"=>"前端腳本","難易度"=>80],
            ["php"=>"后端腳本","難易度"=>75]
    ];


echo "<pre>".var_export($lang,true),"<hr>";

usort($lang,function($a,$b){
    return strcmp($a["難易度"],$b["難易度"]);
});

echo "<pre>".var_export($lang,true),"<hr>";


?>

Guru membetulkan：查無(wú)此人Masa pembetulan：2019-05-05 10:27:59
Rumusan guru：完成的不錯(cuò)。數(shù)組排序一般是php來(lái)操作。繼續(xù)加油。