array("studentNo"=>"2010001","studentName"=>"张三","studentSex"=>"男"), "2010002"=>array("studentNo"=>"2010002","studentName"=>"李四","studentSex"=>"女"), "2010003"=>array("studentNo"=>"2010003","studentName"=>"王五","studentSex"=>"男"), "2010004"=>array("studentNo"=>"2010004","studentName"=>"马六","studentSex"=>"女")); var_dump($students["2010001"]["studentNo"]); var_dump($students["2010002"]); ?>