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asp For Each Next 用法与For Each实例教程
来源:互联网   发布日期:2016-03-01 11:11:21   浏览:2003次  

导读:在For Each ... Next循环类似,对于... Next循环。而不是重复陈述的指定的次数,每名... Next循环重复的对象集合为数组中的每个元素的声明(或每个项目)。下面的代码片断...

在For Each ... Next循环类似,对于... Next循环。而不是重复陈述的指定的次数,

每名... Next循环重复的对象集合为数组中的每个元素的声明(或每个项目)。

下面的代码片断创建下拉列表中选择其中一个数组元素:

Select ActionSelect AllTry It<%

Dim bookTypes(7) 'creates first array

bookTypes(0)="Classic"

bookTypes(1)="Information Books"

bookTypes(2)="Fantasy"

bookTypes(3)="Mystery"

bookTypes(4)="Poetry"

bookTypes(5)="Humor"

bookTypes(6)="Biography"

bookTypes(7)="Fiction"

Dim arrCars(4) 'creates second array

arrCars(0)="BMW"

arrCars(1)="Mercedes"

arrCars(2)="Audi"

arrCars(3)="Bentley"

arrCars(4)="Mini"

Sub createList(some_array) 'takes an array and creates drop-down list

dim i

response.write("<select name=""mylist"">" & vbCrLf) 'vbCrLf stands for

Carriage Return and Line Feed

For Each item in some_array

response.write("<option value=" & i & ">" & item & "</option>" &

vbCrLf)

i = i + 1

Next 'repeat the code and move on to the next value of i

response.write("</select>")

End Sub

'Now let's call the sub and print out our lists on the screen

Call createList(bookTypes) 'takes bookTypes array as an argument

Call createList(arrcars) 'takes arrCars array as an argument

%>

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