将指定文件的内容添加到响应并指定文件中的起始位置和要发送的字节数。

Adds the contents of the specified file to the response and specifies the starting position in the file and the number of bytes to send.

youdao

下一步是把要发送的文件转换成字节数组。

The next step is to convert the file that I want to send into a byte array.

youdao

下一步是把要发送的文件转换成字节数组。

The next step is to convert the file that I want to send into a byte array.

youdao