Len函数返回给定输入字符串的长度，包括空格。
Len(String)
<!DOCTYPE html> <html> <body> <script language = "vbscript" type = "text/vbscript"> var1 = "Microsoft VBScript" document.write("Length of var1 is : " & Len(var1) & "<br />") var2 = "Microsoft VBScript" document.write("Length of var2 is : " & Len(var2) & "<br />") </script> </body> </html>
将其另存为.html并在浏览器中执行时，上述脚本将产生以下结果：
Length of var1 is : 18 Length of var2 is : 36