lower Attribute | lower参数属性

Controls how elements that are defined with lower priority interrupt child elements of a priorityclass element.

dhtml语法

HTML <t:PRIORITYCLASS lower = sLowerPriority... >
Scripting t:PRIORITYCLASS.lower [ = sLowerPriority ]

HTML	<t:PRIORITYCLASS lower = sLowerPriority... >
Scripting	t:PRIORITYCLASS.lower [ = sLowerPriority ]

DHTML可能的值

sLowerPriority String that specifies or receives one of the following values.
defer Default. If a lower-priority element attempts to begin while a child element of this priorityClass is active, the interrupting element is deferred until the active element completes its active duration. In effect, the new element is placed at the top of the pause queue and paused at its very beginning.
never If a lower priority element attempts to begin while a child element of this priorityClass is active, the interrupting element's attempt is denied. The begin time of the interrupting element is ignored. The pause queue is unaffected.
The property is read/write. The property has a default value of defer.

DHTML代码范例

This example uses the lower property set to never to show how elements with a lower priority interrupt child elements of a priorityClass element.

<HTML XMLNS:t="urn:schemas-microsoft-com:time">
<HEAD>
<TITLE>lower Property</TITLE>
<?IMPORT namespace="t" implementation="#default#time2">
<STYLE>
.time{ behavior: url(#default#time2);}
</STYLE>
</HEAD>
<BODY TOPMARGIN=0 LEFTMARGIN=0 BGPROPERTIES="FIXED" BGCOLOR="#FFFFFF"
LINK="#000000" VLINK="#808080" ALINK="#000000">
<t:excl id="t1" begin="0;indefinite;">
<t:priorityclass lower="never">
<SPAN id="s2" class="time" begin="0" dur="10">
<H3>Paragraph 1</H3>
<P>Paragraph 1 begins at 0 seconds and has a duration of 10
seconds.</P>
</SPAN>
</t:priorityclass>
<t:priorityclass>
<SPAN id="s1" class="time" begin="5" dur="5">
<H3>Paragraph 2</H3>
<P>Paragraph 2 never begins.</P>
</SPAN>
</t:priorityclass>
</t:excl>
<BR>
<BUTTON id="b1" onclick="t1.beginElement();">Click to restart</BUTTON>
</BODY>
</HTML>

This feature requires Microsoft?Internet Explorer 5.5 or later. Click the following icon to install the latest version. Then reload this page to view the sample.

是否符合公共标准

This property is defined in Synchronized Multimedia Integration Language (SMIL) 2.0 .

Applies To

t:PRIORITYCLASS

更多语法参考

Introduction to HTML+TIME