怎么在LESS框架中使用使用calc

2024-12-03 02:16:42
推荐回答(1个)
回答1:

LESS 是动态的样式表语言,通过简洁明了的语法定义,使编写 CSS 的工作变得非常简单。本文将通过实例,为大家介绍LESS框架中使用使用calc例子。   Less的好处不用说大家都知道,确实让写CSS的人不在痛苦了,最近我在Less里加入calc时确发现了有点问题,我在Less中这么写:   div {   width : calc(100% - 30px);   }   结果Less把这个当成运算式去执行了,结果给我解析成这样:   div {   width: calc(70%);   }   于是,我把Less改写成这样:   div {   width : calc(~"100% - 30px");   }   解析结果正常:   div {   width: calc(100% - 30px);   }   然而,把30px替换为一个变量,怎么写呢?   div {   @diff : 30px;   width : calc(~"100% - " + @diff);   }   这么写Webstorm没有报错,但grunt-less报错了:   C:\Users\zhong\WebstormProjects\test>grunt less   Running "less:development" (less) task   >> ParseError: Unrecognised input in style.less on line 4, column 2:   >> 3 @diff : 30px;   >> 4 width : calc(~"100% - " + @diff);   >> 5 }   Warning: Error compiling style.less Use --force to continue.   Aborted due to warnings.   于是这么写:   div {   @diff : 30px;   width : calc(~"100% - " @diff);   }   顺利编译过去,但Webstorm却老是提示语法错误,虽然也能编译但看着文件有一个错误提示心里老感觉不爽,找半天也没发现Webstorm如何调试语法提示错误设置   于是,改成如下写法:   div {   @diff : 30px;   width : calc(~"100% - @{diff}");   }   这种写法又能编译,Webstorm里又不报错,所以我比较喜欢用这种写法。

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