問(wèn)題描述

<script>

//使用[]方式創(chuàng)建一個(gè)數(shù)組

var arr = ["張三","男",25,"安徽"];

arr[2]=27;

arr[4]="大學(xué)";

delete arr[1];

document.write(arr);

</script>

輸出結(jié)果為：張三,,27,安徽,大學(xué)

問(wèn)題解答