How to use constructor in Go language

This article will explain in detail how to use the constructor in the Go language. The content of the article is of high quality, so the editor shares it for you as a reference. I hope you will have some understanding of the relevant knowledge after reading this article.

Structure constructor of Go language

The following code implements a constructor for Person. Because struct is a value type, the value copy performance overhead will be high if the structure is complex, so the constructor returns the structure pointer type.

Package mainimport "fmt" type Person struct {name string city string age int} / / Constructor func newPerson (name,city string,age int) * Person {return & Person {name: name,city: city, age: age,}} func main () {/ / call constructor p: = newPerson ("vita", "ShangHai", 27) fmt.Printf ("% # v", p)}

Results:

& main.Person {name: "vita", city: "ShangHai", age:27} Process finished with exit code 0

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