Filter
VBScript Filter 函数
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]])
| 参数 | 描述 |
|---|---|
| inputstrings | 必需。要检索的一维字符串数组。 |
| value | 必需。要搜索的字符串。 |
| include | 可选。Boolean 值，指定返回的子字符串是否包含 Value。如果 Include 为 True，Filter 将返回包含子字符串 Value 的数组子集。如果 Include 为 False，Filter 将返回不包含子字符串 Value 的数组子集。默认值为 True。 |
| compare |
可选。规定要使用的字符串比较类型。
可采用下列的值：
|
实例
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>
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
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>
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
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>
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
Tuesday
Wednesday
Thursday
Saturday