类：WritableStreamDefaultController

🌐 Class: WritableStreamDefaultController

版本历史
版本变更
v18.0.0

This class is now exposed on the global object.

v16.5.0

新增于: v16.5.0

WritableStreamDefaultController 管理 <WritableStream> 的内部状态。

🌐 The WritableStreamDefaultController manages the <WritableStream>'s internal state.