diff --git a/console/common.go b/console/common.go
index a9870b5..83e2185 100644
--- a/console/common.go
+++ b/console/common.go
@@ -3,6 +3,7 @@ package console
 import (
 	"errors"
 	"fmt"
+	"io"
 	"os"
 	"runtime"
 	"strconv"
@@ -18,10 +19,12 @@ var (
 
 type Console iface.Console
 
+// Create a new pty
 func New(coder string, colorAble bool) Console {
 	return newNative(coder, colorAble, 50, 50)
 }
 
+// Create a new pty and initialize the size
 func NewWithSize(coder string, colorAble bool, Cols, Rows uint) Console {
 	return newNative(coder, colorAble, Cols, Rows)
 }
@@ -49,6 +52,7 @@ func newNative(coder string, colorAble bool, Cols, Rows uint) Console {
 	return &console
 }
 
+// Read data from pty console
 func (c *console) Read(b []byte) (int, error) {
 	if c.file == nil {
 		return 0, ErrProcessNotStarted
@@ -57,6 +61,7 @@ func (c *console) Read(b []byte) (int, error) {
 	return c.StdOut().Read(b)
 }
 
+// Write data to the pty console
 func (c *console) Write(b []byte) (int, error) {
 	if c.file == nil {
 		return 0, ErrProcessNotStarted
@@ -65,11 +70,25 @@ func (c *console) Write(b []byte) (int, error) {
 	return c.StdIn().Write(b)
 }
 
+func (c *console) StdIn() io.Writer {
+	return c.stdIn
+}
+
+func (c *console) StdOut() io.Reader {
+	return c.stdOut
+}
+
+func (c *console) StdErr() io.Reader {
+	return c.stdErr
+}
+
+// Add environment variables before start
 func (c *console) AddENV(environ []string) error {
 	c.env = append(c.env, environ...)
 	return nil
 }
 
+// close the pty and kill the subroutine
 func (c *console) Close() error {
 	if c.file == nil {
 		return ErrProcessNotStarted
@@ -78,6 +97,7 @@ func (c *console) Close() error {
 	return c.file.Close()
 }
 
+// wait for the pty subroutine to exit
 func (c *console) Wait() (*os.ProcessState, error) {
 	proc, err := c.findProcess()
 	if err != nil {
@@ -86,6 +106,7 @@ func (c *console) Wait() (*os.ProcessState, error) {
 	return proc.Wait()
 }
 
+// Send system signals to pty subroutines
 func (c *console) Signal(sig os.Signal) error {
 	proc, err := c.findProcess()
 	if err != nil {
@@ -112,6 +133,7 @@ func (c *console) ResizeWithString(sizeText string) error {
 	return c.SetSize(uint(cols), uint(rows))
 }
 
+// Get pty window size
 func (c *console) GetSize() (uint, uint) {
 	return c.initialCols, c.initialRows
 }
diff --git a/console/console.go b/console/console.go
index dede9b0..b7a280e 100644
--- a/console/console.go
+++ b/console/console.go
@@ -32,6 +32,7 @@ type console struct {
 	env []string
 }
 
+// start pty subroutine
 func (c *console) Start(dir string, command []string) error {
 	cmd, err := c.buildCmd(command)
 	if err != nil {
@@ -71,18 +72,7 @@ func (c *console) buildCmd(args []string) (*exec.Cmd, error) {
 	return cmd, nil
 }
 
-func (c *console) StdIn() io.Writer {
-	return c.stdIn
-}
-
-func (c *console) StdOut() io.Reader {
-	return c.stdOut
-}
-
-func (c *console) StdErr() io.Reader {
-	return nil
-}
-
+// set pty window size
 func (c *console) SetSize(cols uint, rows uint) error {
 	c.initialRows = rows
 	c.initialCols = cols
@@ -92,6 +82,7 @@ func (c *console) SetSize(cols uint, rows uint) error {
 	return pty.Setsize(c.file, &pty.Winsize{Cols: uint16(cols), Rows: uint16(rows)})
 }
 
+// Get the process id of the pty subprogram
 func (c *console) Pid() int {
 	if c.cmd == nil {
 		return 0
@@ -107,6 +98,7 @@ func (c *console) findProcess() (*os.Process, error) {
 	return c.cmd.Process, nil
 }
 
+// Force kill pty subroutine
 func (c *console) Kill() error {
 	proc, err := c.findProcess()
 	if err != nil {
diff --git a/console/console_windows.go b/console/console_windows.go
index a7a3ca2..28ad1ba 100644
--- a/console/console_windows.go
+++ b/console/console_windows.go
@@ -38,6 +38,7 @@ type console struct {
 	env []string
 }
 
+// start pty subroutine
 func (c *console) Start(dir string, command []string) error {
 	dllDir, err := c.UnloadEmbeddedDeps()
 	if err != nil {
@@ -169,18 +170,7 @@ func releases(f *bytes.Reader, targetPath string) error {
 	return nil
 }
 
-func (c *console) StdIn() io.Writer {
-	return c.stdIn
-}
-
-func (c *console) StdOut() io.Reader {
-	return c.stdOut
-}
-
-func (c *console) StdErr() io.Reader {
-	return c.stdErr
-}
-
+// set pty window size
 func (c *console) SetSize(cols uint, rows uint) error {
 	c.initialRows = rows
 	c.initialCols = cols
@@ -194,10 +184,12 @@ func (c *console) SetSize(cols uint, rows uint) error {
 	return nil
 }
 
+// Get the process id of the pty subprogram
 func (c *console) Pid() int {
 	if c.file == nil {
 		return 0
 	}
+
 	return c.file.Pid()
 }
 
@@ -208,6 +200,7 @@ func (c *console) findProcess() (*os.Process, error) {
 	return os.FindProcess(c.Pid())
 }
 
+// Force kill pty subroutine
 func (c *console) Kill() error {
 	_, err := c.findProcess()
 	if err != nil {