基于变量动态生成 CSS 类 SCSS

使用@each圈.不要在:root中创建vars，而是在单个var中添加这些(参见下面的示例)

$colors : (
  "primary-50":  "1,1,1",
  "primary-100": "2,2,2",
  "primary-200": "3,3,3",
);

@each $color, $value in $colors {
    .bg-#{$color} {
        background-color: rgb($value);
    }
}

以上代码编译成

.bg-primary-50 {
  background-color: #010101;
}
.bg-primary-100 {
  background-color: #020202;
}
.bg-primary-200 {
  background-color: #030303;
}

还有CSS --variables

:root {
    @each $color, $value in $colors {
        --color-#{$color}: rgb($value);
    }
}

和???? 你有CSS变量

:root {
  --color-primary-50: #010101;
  --color-primary-100: #020202;
  --color-primary-200: #030303;
}

就像你在 comments 中提到的"这个解决方案适用于明暗模式吗？"为此，你可以这样做

html[data-color-mode="dark"] {
  $dark-mode-colors: (
    "primary-color-50": "0, 0, 0",
    "primary-color-100": "1, 1, 1",
    "primary-color-200": "2, 2, 2",
  )

  @each $color, $value in $colors {
    .bg-#{$color} {
        background-color: $value;
    }
  }
}

// change your color scheme as you prefer method will remain the same
html[data-color-mode="light"] {
  $light-mode-colors: (
    "primary-color-50": "0, 0, 0",
    "primary-color-100": "1, 1, 1",
    "primary-color-200": "2, 2, 2",
  )

  @each $color, $value in $colors {
    .bg-#{$color} {
        background-color: $value;
    }
  }
}