mime.toString()

• 返回: <string>

MIMEType 对象上的 toString() 方法返回序列化的 MIME。

因为符合标准的需要，该方法不允许用户自定义MIME的序列化过程。

• Returns: <string>

The toString() method on the MIMEType object returns the serialized MIME.

Because of the need for standard compliance, this method does not allow users to customize the serialization process of the MIME.