golang file 代码
文件路径：/misc/swig/stdio/file.go
// Copyright 2017 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.
// This file is here just to cause problems.
// file.swig turns into a file also named file.go.
// Make sure cmd/go keeps them separate
// when both are passed to cgo.
package file
//int F(void) { return 1; }
import "C"
func F() int { return int(C.F()) }