????：<?phpheader("Content-Type:text/html; charset=utf8");$stu = [    ['name' =>'林熙蕾','grade'=> 90],    ['name' =>'范冰冰','

<?php

header("Content-Type:text/html; charset=utf8");

$stu = [
   ['name' =>'林熙蕾','grade'=> 90],
   ['name' =>'范冰冰','grade'=>87],
   ['name' =>'小青',  'grade'=>73],
];

//升序回調(diào)

usort($stu,function($m,$n){

    return  strcmp($m['grade'],$n['grade']);

});

echo var_export($stu,true),'<hr>';

?>

?? ???：查無(wú)此人?? ??：2019-04-10 15:40:04
???? ??：完成的不錯(cuò)?？梢詫懞靡恍┮?guī)則，留作下次使用。這樣就很方便了。繼續(xù)加油。