当它说它属于另一种类型时，我怎么能使用packages方法呢？

Question

Sorry for the horrible horrible title, first off if anybody can offer an edit for a better title after reading my question please, submit it, I'm pretty bad with my terminology at the moment.

So, simple question:

Reading through the net/http package on how to make http.Get requests and it says all I have to do is

resp, err := http.Get(blah)

Ok fair enough so scrolling down the list to see what parameters this Get function took, I couldn't find it directly under the functions of the http package

So scrolling down I find a Get method under type Client

So how come I don't have to first http.Client then make my Get request to that? Just a little confused. Thanks for any help.

Answer 1

Those are two different versions of the method. In one case; http.Get it's defined at the package level, this works much like a static method in C# or Java. In the other it has a receiver of type http.Client it's more like an instance method on that type in C# or Java. The type http.Client is as you'd expect in the same package.

package level get: http://golang.org/pkg/net/http/#Get

 func Get(url string) (resp *Response, err error)
    //^ absence of receiver = package scoped
    //^ uppercase method name so it is 'exported' which is about like public

client receiver get: http://golang.org/pkg/net/http/#Client.Get

   func (c *Client) Get(url string) (resp *Response, err error)
        //^ this is the receiver