golang的继承不是继承
妙音
posted @ 2021年4月12日 19:46
in golang
, 1909 阅读
问题
struct嵌套，内层struct方法访问同名的属性，这个属性是谁的？
示例
package main
import (
"fmt"
)
type ProductA struct{
Name string
}
func (p *ProductA) PrintName(){
fmt.Println("a:", p.Name)
}
type ProductB struct{
ProductA
Name string
Level string
}
func main() {
b := ProductB{
Name: "name-b",
Level: "level",
}
b.PrintName()
}
// 仍然是ProductA的
//打印 a:
总结
1. go没有继承，只有组合
2. 只是提供了类似继承的便捷访问方式，不要被所谓的”继承“误导
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