golang executable 代码
文件路径：/src/os/executable.go
/ Copyright 2016 The Go Authors. All rights reserved.
/ Use of this source code is governed by a BSD-style
/ license that can be found in the LICENSE file.
package os
/ Executable returns the path name for the executable that started
/ the current process. There is no guarantee that the path is still
/ pointing to the correct executable. If a symlink was used to start
/ the process, depending on the operating system, the result might
/ be the symlink or the path it pointed to. If a stable result is
/ needed, path/filepath.EvalSymlinks might help.
/
/ Executable returns an absolute path unless an error occurred.
/
/ The main use case is finding resources located relative to an
/ executable.
func Executable() (string, error) {
return executable()
}