hmac.update(data[, inputEncoding])

• data <string> | <Buffer> | <TypedArray> | <DataView>

• inputEncoding <string> data 字符串的 字符编码。

  ¥inputEncoding <string> The encoding of the data string.

使用给定的 data 更新 Hmac 内容，其编码在 inputEncoding 中给出。如果未提供 encoding，且 data 是字符串，则强制为 'utf8' 编码。如果 data 是 Buffer、TypedArray 或 DataView，则忽略 inputEncoding。

¥Updates the Hmac content with the given data, the encoding of which is given in inputEncoding. If encoding is not provided, and the data is a string, an encoding of 'utf8' is enforced. If data is a Buffer, TypedArray, or DataView, then inputEncoding is ignored.

这可以在流式传输时使用新数据多次调用。

¥This can be called many times with new data as it is streamed.