How to approach the struct in Go method first experience

Code_017_struct_method_usage Project Main.gopackage mainimport ("FMT") type MyInt IntFunc (a MyInt) Add (b MyInt) MyInt {return a + B}func Add (A, b MyInt) MyInt {return a + b}type person struct {name string sex "byte Age Int}func" (p person) Printinfo () {fmt. Println (P.name, P.age)}func (P *person) Setinfopointer () {(*p). Name = "God_girl" p.sex = 1 p.age = 22}func (P person) Set Infovalue () {p.name = "god_like" p.sex = 1 P.age = 23}func Main () {/* has a function with a receiver, which we call method. In essence, a method is a function associated with a particular type. The func (receiver Receivertype) funcName (parameters) {results} 1) parameter receiver can be named arbitrarily. You can omit the parameter name if it has not been used in the method. The parameter receiver type can be T or *t. The base type T cannot be an interface or a pointer. Overloaded methods are not supported, that is, methods that have the same name but different parameters cannot be defined. 2) in the Go language, you can add an appropriate method to any custom type, including built-in types, but not pointer types. *///1) basic use var a MyInt = 1 var b MyInt = 1 fmt. Println ("a.add (b) =", A.add (b)) fmt. Println ("Add (a) =", add (A, b))//2) struct as receiver P: = person{"Ck_god", 0, +} p.printinfo ()//3) struct value semantics and referential semantics p1: = person{"wan Glaoji ", 0, +} fmt. Println ("pre-function call =", p1) (&P1). Setinfopointer () FMT.println ("function call after =", p1) fmt. Println ("==========================") P2: = person{"Ck_god", 0, + FMT. Println ("pre-function call =", p2) P2. Setinfovalue () fmt. PRINTLN ("after function call =", p2)//function Call after = {Mike 109 18}}

Methods of the struct in Go method first experience