session变量可以申请数组吗？

新客网 XKER.COM 2003-07-11 来源：收藏本文

If you store an array in a Session object, you should not attempt to alter the elements of the stored array directly. For example, the following script will not work: 
 
<% Session("StoredArray")(3) = "new value" %> 
 
This is because the Session object is implemented as a collection. The array element StoredArray(3) does not receive the new value. Instead, the value is indexed into the collection, overwriting any information stored at that location. 
 
It is strongly recommended that if you store an array in the Session object, you retrieve a copy of the array before retrieving or changing any of the elements of the array. When you are done with the array, you should store the array in the Session object again so that any changes you made are saved. This is demonstrated in the following example: 
 
---file1.asp--- 
<% 
'Creating and initializing the array 
Dim MyArray() 
Redim MyArray(5) 
MyArray(0) = "hello" 
MyArray(1) = "some other string" 
 
'Storing the array in the Session object. 
Session("StoredArray") = MyArray 
 
Response.Redirect("file2.asp") 
%> 
 
---file2.asp--- 
<% 
'Retrieving the array from the Session Object 
'and modifying its second element. 
LocalArray = Session("StoredArray") 
LocalArray(1) = " there" 
 
'Printing out the string "hello there." 
Response.Write(LocalArray(0)&LocalArray(1)) 
 
'Re-storing the array in the Session object. 
'This overwrites the values in StoredArray with the new values. 
Session("StoredArray") = LocalArray 
%>

上一篇：这里是我根据gif图像格式想出来的判断gif图像尺寸的方法，请大家给点意见下一篇：session变量中的数组如何引用？

【收藏】【评论】【推荐】【投稿】【打印】【关闭】