Home > Web Front-end > HTML Tutorial > HTML中IE条件注释判断语句(<![if XX IE X]><![endif]>)_html/css_WEB-ITnose

HTML中IE条件注释判断语句(<![if XX IE X]><![endif]>)_html/css_WEB-ITnose

WBOY
Release: 2016-06-24 11:30:00
Original
1666 people have browsed it

是IE专门提供的一种语法,其他浏览器会将其作为注释而忽略这些语句。

 

作用:

  根据不同的IE版本加载对应的CSS或者JS文件了,例如下面截图所示:

  

                        (代码)

 

  

                         (Chrome浏览器)

 

  

                          (IE浏览器)

下面列子:

   除IE外都可识别
  
  
  
  
  
  
  
  
  

 

符号说明:

项目 范例 说明
! [if !IE] The NOT operator. This is placed immediately in front of the feature, operator, or subexpression to reverse the Boolean meaning of the expression.
NOT运算符。这是摆立即在前面的功能,操作员,或子表达式扭转布尔表达式的意义。
lt [if lt IE 5.5] The less-than operator. Returns true if the first argument is less than the second argument.
小于运算符。如果第一个参数小于第二个参数,则返回true。
lte [if lte IE 6] The less-than or equal operator. Returns true if the first argument is less than or equal to the second argument.
小于或等于运算。如果第一个参数是小于或等于第二个参数,则返回true。
gt [if gt IE 5] The greater-than operator. Returns true if the first argument is greater than the second argument.
大于运算符。如果第一个参数大于第二个参数,则返回true。
gte [if gte IE 7] The greater-than or equal operator. Returns true if the first argument is greater than or equal to the second argument.
大于或等于运算。如果第一个参数是大于或等于第二个参数,则返回true。
( ) [if !(IE 7)] Subexpression operators. Used in conjunction with boolean operators to create more complex expressions.
子表达式运营商。在与布尔运算符用于创建更复杂的表达式。
& [if (gt IE 5)&(lt IE 7)] The AND operator. Returns true if all subexpressions evaluate to true
AND运算符。如果所有的子表达式计算结果为true,返回true
| [if (IE 6)|(IE 7)] The OR operator. Returns true if any of the subexpressions evaluates to true.
OR运算符。返回true,如果子表达式计算结果为true。

source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template