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VBScript TypeName 函数


❮ VBScript 完整参考

TypeName 函数返回指定变量的子类型。

TypeName 函数可以返回以下值之一

  • Byte - 指示字节值
  • Integer - 指示整数
  • Long - 指示长整数
  • Single - 指示单精度浮点数
  • Double - 指示双精度浮点数
  • Currency - 指示货币值
  • Decimal - 指示十进制值
  • Date - 指示日期或时间值
  • String - 指示字符字符串值
  • Boolean - 指示布尔值;真或假
  • Empty - 指示未初始化的变量
  • Null - 指示没有有效数据
  • <object type> - 指示对象的实际类型名称
  • Object - 指示通用对象
  • Unknown - 指示未知对象类型
  • Nothing - 指示尚未引用对象实例的对象变量
  • Error - 指示错误

语法

TypeName(varname)

参数 描述
varname 必需。变量名

示例

示例

<%

x="Hello World!"
response.write(TypeName(x) & "<br />")
x=4
response.write(TypeName(x) & "<br />")
x=4.675
response.write(TypeName(x) & "<br />")
x=Null
response.write(TypeName(x) & "<br />")
x=Empty
response.write(TypeName(x) & "<br />")
x=True
response.write(TypeName(x))

%>

以上代码的输出将为

String
Integer
Double
Null
Empty
Boolean
显示示例 »

❮ VBScript 完整参考
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