一个if语句，后跟一个或多个elseif的，它由布尔表达式，然后接着是默认的else语句，该语句执行时的所有条件为false。
语法
VBScript中If-ElseIf-Else语句的语法：
If(boolean_expression) Then Statement 1 ..... ..... Statement n ElseIf (boolean_expression) Then Statement 1 ..... .... Statement n ElseIf (boolean_expression) Then Statement 1 ..... .... Statement n Else Statement 1 ..... .... Statement n End If
流程图
例
<!DOCTYPE html>
<html>
<body>
<script language = "vbscript" type = "text/vbscript">
Dim a
a = -5
If a > 0 Then
Document.write "a is a POSITIVE Number"
ElseIf a < 0 Then
Document.write "a is a NEGATIVE Number"
Else
Document.write "a is EQUAL than ZERO"
End If
</script>
</body>
</html>执行以上代码后，将产生以下结果：
a is a NEGATIVE Number
作者：terry，如若转载，请注明出处：https://www.web176.com/vbscript/1293.html
