os.Open返回一个
io.Reader
http://play.golang.org/p/BskGT09kxL
package mainimport ( "fmt" "io" "os")var _ io.Reader = (*os.File)(nil)func main() { fmt.Println("Hello, playground")}
os.Open返回一个
io.Reader
http://play.golang.org/p/BskGT09kxL
package mainimport ( "fmt" "io" "os")var _ io.Reader = (*os.File)(nil)func main() { fmt.Println("Hello, playground")}名师互学网 版权所有 (c)2021-2022 ICP备案号：晋ICP备2021003244-6号
