"Go study Notes" 11, method

This is a creation in Article, where the information may have evolved or changed.

Method

• There is no class in go, but there are still method
• To implement a combination of a type by displaying a description of receiver
• Method can only be defined for a type in the same package
• Receiver can make a value or pointer of type
• No method overloads exist
• You can use a value or a pointer to invoke a method, and the compiler will automatically complete the conversion
• In a sense, the method is the syntactic sugar of a function, because receiver is actually the 1th parameter (method Value vs.)
• If the external structure and the dive structure have the same name method, the method of calling the external structure is preferred
• Type aliases do not have methods that are included with the underlying type
• Method can call a non-public field in a struct

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type A struct {Name string }func main () {//method value A: = A{name: "Yibai" } A.printname () //method Express (*a). Printname (&a)}func (a *a) Span class= "title" >printname () {a.name = FMT. Println (A.name)}