在SASS中访问阵列键

$color-collection: ('red', 'orange', 'green', 'blue');@for $i from 0 to length($color-collection) {    .color-#{$i} {        color: unquote(nth($color-collection, $i+1));    }}

使用

nth()

unquote()

不过，我个人不会：

$color-collection: (red, rgba(50,50,80, .5), darken(green, 50%), rgba(blue, .5));@for $i from 0 to length($color-collection) {    .color-#{$i} {        color: nth($color-collection, $i+1);    }}

因为这样您可以传递任何颜色对象。