Dart 支持单行注释、多行注释以及文档注释。
单行注释
// Single-line comments
多行注释
Dart的多行注释支持嵌套
/**
* Multi-line comments
*
* /**
* Multi-line comments can nest
* */
*/
文档注释
文档注释是以
///或/**开头的多行或单行注释,可以在注释中使用方括号来引用类,方法,字段,顶级变量,函数和参数(这样在语法提示中会高亮显示)。
/// A domesticated South American camelid (Lama glama).
///
/// Andean cultures have used llamas as meat and pack
/// animals since pre-Hispanic times.
///
/// Just like any other animal, llamas need to eat,
/// so don't forget to [feed] them some [Food].
class Llama {
String? name;
/// Feeds your llama [food].
///
/// The typical llama eats one bale of hay per week.
void feed(Food food) {
}
/// Exercises your llama with an [activity] for
/// [timeLimit] minutes.
void exercise(Activity activity, int timeLimit) {
// ...
}
}
通过 Dart 的文档生成工具生成文档, 在生成的文档中,[feed] 会成为一个链接,指向 feed 方法的文档, [Food] 会成为一个链接,指向 Food 类的 API 文档。