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VBScript LBound 函数


❮ VBScript 完整参考

LBound 函数返回数组指定维度的最小下标。

注意: 任何维度的 LBound 始终为 0。

提示: 使用 LBound 函数和 UBound 函数来确定数组的大小。

语法

LBound(arrayname[,dimension])

参数 描述
arrayname 必需。数组变量的名称。
dimension 可选。要返回的维度的下限。1 = 第一维,2 = 第二维,依此类推。默认值为 1。

示例

示例 1

<%

days=Array("Sun","Mon","Tue","Wed","Thu","Fri","Sat")
response.write(LBound(days) & "<br />")
response.write(UBound(days) & "<br />")

%>

上述代码的输出将是

0
6
显示示例 »

示例 2

二维数组

<%

Dim food(2,3)
food(0,0)="Apple"
food(0,1)="Banana"
food(0,2)="Orange"
food(0,3)="Lemon"
food(1,0)="Pizza"
food(1,1)="Hamburger"
food(1,2)="Spaghetti"
food(1,3)="Meatloaf"
food(2,0)="Cake"
food(2,1)="Cookie"
food(2,2)="Icecream"
food(2,3)="Chocolate"
response.write(LBound(food,1) & "<br />")
response.write(UBound(food,1) & "<br />")
response.write(LBound(food,2) & "<br />")
response.write(UBound(food,2) & "<br />")

%>

上述代码的输出将是

0
2
0
3
显示示例 »

❮ VBScript 完整参考
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