Question

Sass 支持标准的CSS多行注释以/* */以及单行注释 //。在尽可能的情况下，多行注释会被保留在输出的CSS中，而单行注释会被删除。 例如：

/* This comment is
 * several lines long.
 * since it uses the CSS comment syntax,
 * it will appear in the CSS output. */
body { color: black; }

// These comments are only one line long each.
// They won't appear in the CSS output,
// since they use the single-line comment syntax.
a { color: green; }

编译为：

/* This comment is
 * several lines long.
 * since it uses the CSS comment syntax,
 * it will appear in the CSS output. */
body {
  color: black; }

a {
  color: green; }

如果多行注释的第一个字母是 !，那么注释总是会被保留到输出的CSS中，即使在压缩输出模式下。这可用于在你生成的CSS中添加版权声明。

使用插值语句 (interpolation) ，可以将变量值输出到多行注释中，例如：

$version: "1.2.3";
    /* This CSS is generated by My Snazzy Framework version #{$version}. */

编译为：

/* This CSS is generated by My Snazzy Framework version 1.2.3. */