这段程序会输出什么?
Go
package main
import (
"errors"
"fmt"
)
var ErrMissing = errors.New("missing")
func load() error {
return fmt.Errorf("load profile: %w", ErrMissing)
}
func main() {
err := load()
fmt.Println(err == ErrMissing)
fmt.Println(errors.Is(err, ErrMissing))
}