Filter 函数

VBScript Filter 函数可以根据指定的筛选条件，返回含有字符串数组子集的、下限为 0 的数组。

Filter 函数返回一个基于 0 的数组，此数组包含以特定过滤条件为基础的字符串数组的子集。

注意：如果找不到与 value 参数相匹配的值，Filter 函数会返回一个空数组。

注意：如果参数 inputstrings 为 Null 或者不是一维数组，则会发生错误。

语法

 Filter(inputstrings,value[,include[,compare]])

实例 1

Filter：项目包含的 "S"：

<script type="text/vbscript">

a=Array("Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday")
b=Filter(a,"S")
for each x in b
document.write(x & "<br />")
next

</script>

以上实例输出结果：

Sunday
Saturday

实例 2

Filter：项目不包含的 "S"（include=False）：

<script type="text/vbscript">

a=Array("Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday")
b=Filter(a,"S",False)
for each x in b
document.write(x & "<br />")
next

</script>

以上实例输出结果：

Monday
Tuesday
Wednesday
Thursday
Friday

实例 3

Filter：包含 "S" 的项目，用文本比较（compare=1）：

<script type="text/vbscript">

a=Array("Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday")
b=Filter(a,"S",True,1)
for each x in b
document.write(x & "<br />")
next

</script>

以上实例输出结果：

Sunday
Tuesday
Wednesday
Thursday
Saturday