13.4.6 IE里的条件注释
HTML注释1
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16<!--[if IE 6]>
This content is actually inside an HTML comment.
It will only be displayed in IE 6.
<![endif]-->
<!--[if lte IE 7]>
This content will only be displayed by IE 5, 6 and 7 and earlier.
lte stands for "less than or equal". You can also use "lt", "gt" and "gte".
<![endif]-->
<!--[if !IE]> <-->
This is normal HTML content, but IE will not display it
because of the comment above and the comment below.
<!--> <![endif]-->
This is normal content, displayed by all browsers.
<!--[if IE]><script src="excanvas.js"></script><![endif]-->
JavaScript注释JScript是Microsoft的JavaScript解释器的名字, 而@_jscript变量在IE总是为true.1
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20/*@cc_on
@if (@_jscript)
// This code is inside a JS comment but is executed in IE.
alert("In IE");
@end
@*/
/*@cc_on
@if (@_jscript)
// This code is inside a conditional comment, which is also a
// regular JavaScript comment. IE runs it but other browsers ignore it.
alert('You are using Internet Explorer);
@else*/
// This code is no longer inside a JavaScript comment, but is still
// inside the IE conditional comment. This means that all browsers
// except IE will run this code.
alert('You are not using Internet Explorer');
/*@end
@*/
13.6 安全性
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