〈window〉 ...All Other Mark-up Goes Between These Tags... 〈/window〉
在 与标签之间，加入要显示的文本。
Mary had a little lamb,
〈br/〉little lamb,
〈br/〉 little lamb,
〈br/〉Mary had a little lamb
〈br/〉whose fleece was white as snow.
将其保存为以.rt为扩展名的文本文件。
要合并其他文件，创建SMIL文件，如：
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