"expectedContentLength"返回值的单位是什么
What is the unit of the value returned by "expectedContentLength"
我正在尝试在执行 connections.I 时设置数据限制，我正在使用以下函数来获取 NSURLResponse 的大小。
NSURLResponse *response;
long long size = [response expectedContentLength];
我得到的尺寸为：15219
是字节还是比特？
expectedContentLength 在服务器提供时设置，例如通过 Content-Length 响应 header.
Content-Length 是 defined 来自：
The Content-Length entity-header field indicates the size of the
entity-body, in decimal number of OCTETs, sent to the recipient or, in
the case of the HEAD method, the size of the entity-body that would
have been sent had the request been a GET.
因此，您可以假设大多数现代平台上的字节单位是 8 位长。
我正在尝试在执行 connections.I 时设置数据限制，我正在使用以下函数来获取 NSURLResponse 的大小。
NSURLResponse *response;
long long size = [response expectedContentLength];
我得到的尺寸为：15219
是字节还是比特？
expectedContentLength 在服务器提供时设置，例如通过 Content-Length 响应 header.
Content-Length 是 defined 来自：
The Content-Length entity-header field indicates the size of the entity-body, in decimal number of OCTETs, sent to the recipient or, in the case of the HEAD method, the size of the entity-body that would have been sent had the request been a GET.
因此，您可以假设大多数现代平台上的字节单位是 8 位长。