.css文件中"@include"的含义是什么？

Question

我不明白,.css文件中@include标记的含义是什么.例如 :

.wrapper {
display: flex;
width: 100%;
@include display(flex);
@include flex-direction(column);
@include align-items(center);
@include justify-content(center);
@include transition(all 2s linear);
}

Answer 1

@includes是SCSS的一部分,它叫做Mixin.这是一个例子:

@mixin border-radius($radius) {
    -webkit-border-radius: $radius;
       -moz-border-radius: $radius;
        -ms-border-radius: $radius;
            border-radius: $radius;
}

.box { @include border-radius(10px); }

@includes是存储特别是供应商前缀之类的东西的快捷方式.上面的CSS输出将是:

.box {
    -webkit-border-radius: 10px;
       -moz-border-radius: 10px;
        -ms-border-radius: 10px;
            border-radius: 10px;
}