VBScript LBound 函数
LBound 函数返回指定数组的最小下标。 因此,数组的 LBound 为零。
语法
LBound(ArrayName[,dimension])
ArrayName,必填参数。 该参数对应于数组的名称。
dimension,可选参数。 这采用与数组维度相对应的整数值。 如果为"1",则返回第一个维度的下界; 如果是"2",则返回第二个维度的下界,依此类推。
示例
<!DOCTYPE html> <html> <body> <script language = "vbscript" type = "text/vbscript"> Dim arr(5) arr(0) = "1" 'Number as String arr(1) = "VBScript 'String arr(2) = 100 'Number arr(3) = 2.45 'Decimal Number arr(4) = #10/07/2013# 'Date arr(5) = #12.45 PM# 'Time document.write("The smallest Subscript value of the given array is : " & LBound(arr)) ' For MultiDimension Arrays : Dim arr2(3,2) document.write( "The smallest Subscript of the first dimension of arr2 is : " & LBound(arr2,1) & "<br />") document.write( "The smallest Subscript of the Second dimension of arr2 is : " & LBound(arr2,2) & "<br />") </script> </body> </html>
当上述代码保存为 .HTML 并在 Internet Explorer 中执行时,会产生以下结果−
The smallest Subscript value of the given array is : 0 The smallest Subscript of the first dimension of arr2 is : 0 The smallest Subscript of the Second dimension of arr2 is : 0