Optional Value

选项是必需的还是非必需的，一般来说，它的行为取决于命令目标。

An option is either required or not and, generally speaking, how it behaves depends on a command target.

使选项可选。

Making option optional.

  • Programmatic

  • Annotation

  • Legacy Annotation

Unresolved include directive in modules/ROOT/pages/options/optional.adoc - include::../../../../src/test/java/org/springframework/shell/docs/OptionSnippets.java[]
Unresolved include directive in modules/ROOT/pages/options/optional.adoc - include::../../../../src/test/java/org/springframework/shell/docs/OptionSnippets.java[]
Unresolved include directive in modules/ROOT/pages/options/optional.adoc - include::../../../../src/test/java/org/springframework/shell/docs/OptionSnippets.java[]

使选项强制。

Making option mandatory.

  • Programmatic

  • Annotation

  • Legacy Annotation

Unresolved include directive in modules/ROOT/pages/options/optional.adoc - include::../../../../src/test/java/org/springframework/shell/docs/OptionSnippets.java[]
Unresolved include directive in modules/ROOT/pages/options/optional.adoc - include::../../../../src/test/java/org/springframework/shell/docs/OptionSnippets.java[]
Unresolved include directive in modules/ROOT/pages/options/optional.adoc - include::../../../../src/test/java/org/springframework/shell/docs/OptionSnippets.java[]