检测struct类型是否实现了某个接口 package main import "fmt" type Resource interface { GetName() string Restart() } type Pod struct { Name string RestartNumber int } func (p Pod) GetName() string { return p.Name } func (p *Pod) Restart() { p.RestartNumber += 1 } func main() { // 会出现如下的错误: cannot use Pod literal (type Pod) as type Resource in assignment: Pod does not implement Resource (Restart method has pointer receiver) var _ Resource = Pod{} } 因此如果我们想要检测一个类型是否实现了指定的接口，可以通过var _ io.
