XML简介 XML 被设计用来传输和存储数据。类似于JSON。 XML 指可扩展标记语言（EXtensible Markup Language） XML 是一种标记语言，很类似 HTML XML 的设计宗旨是传输数据，而非显示数据 XML 标签没有被预定义。您需要自行定义标签。 XML 被设计为具有自我描述性。 XML 是 W3C 的推荐标准 XML 被设计用来结构化、存储以及传输信息。(没有格式双方很难知道信息的结构内容) 实例:
CDATA 术语 CDATA 指的是不应由 XML 解析器进行解析的文本数据（Unparsed Character Data）。(就是里面的数据不进行XML解析) CDATA 部分由 "" 结束：
<script>
<![CDATA[ //开始
function matchwo(a,b)
{
if (a < b && a < 0) then
{
return 1;
}
else
{
return 0;
}
}
]]> //结束
</script>
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