1、创建数组创建数组，为其赋值，然后输出这些值。代码如下：<html><body><script type="text/javascript">var mycars = new Array()mycars[0] = "Saab"mycars[1] = "Volvo"mycars[2] = "BMW"for (i=0;i<mycars.length;i++){document.write(mycars[i] + "<br />")}</script></body></html>
2、For...In 声明。使用 for...in 声明来循环输出数组中的元素。<html><body><script type="text/javascript">var xvar mycars = new Array()mycars[0] = "Saab"mycars[1] = "Volvo"mycars[2] = "BMW"for (x in mycars){document.write(mycars[x] + "<br />")}</script></body></html>
3、合并两个数组 - concat()。如何使用 concat() 方法来合并两个数组。<html><body><script type="text/javascript">var arr = new Array(3)arr[0] = "George"arr[1] = "John"arr[2] = "Thomas"var arr2 = new Array(3)arr2[0] = "James"arr2[1] = "Adrew"arr2[2] = "Martin"document.write(arr.concat(arr2))</script></body></html>
4、用数组的元素组成字符串 - join()。如何使用 join() 方法将数组的所有元素组成一个字符串。<html><body><script type="text/javascript">var arr = new Array(3);arr[0] = "George"arr[1] = "John"arr[2] = "Thomas"document.write(arr.join());document.write("<br />");document.write(arr.join("."));</script></body></html>
5、文字数组 - sort()。如何使用 sort() 方法从字面上对数组进行排序。<html><body><script type="text/javascript">var arr = new Array(6)arr[0] = "George"arr[1] = "John"arr[2] = "Thomas"arr[3] = "James"arr[4] = "Adrew"arr[5] = "Martin"document.write(arr + "<br />")document.write(arr.sort())</script></body></html>
6、数字数组 - sort()。如何使用 sort() 方法从数值上对数组进行排序。<html><body><script type="text/javascript">function sortNumber(a, b){return a - b}var arr = new Array(6)arr[0] = "10"arr[1] = "5"arr[2] = "40"arr[3] = "25"arr[4] = "1000"arr[5] = "1"document.write(arr + "<br />")document.write(arr.sort(sortNumber))</script></body></html>
