var i interface{}
var x *int
i = x //不赋值时i接口为is a nil,反射reflect.ValueOf(i).IsNil()会panil
if i != nil {标签:nil,fmt,ValueOf,接口,else,Println,go From: https://www.cnblogs.com/cheyunhua/p/17842669.html
fmt.Println("i != nil")
} else {
fmt.Println("is a nil")
}
if reflect.ValueOf(i).IsNil() {
fmt.Println(true)
} else {
fmt.Println(false)
}
}