diff --git a/g/internal/cmdenv/cmdenv.go b/g/internal/cmdenv/cmdenv.go
index 9b843ce00..a81afafec 100644
--- a/g/internal/cmdenv/cmdenv.go
+++ b/g/internal/cmdenv/cmdenv.go
@@ -19,7 +19,12 @@ var (
 	cmdOptions = make(map[string]string)
 )
 
-func init() {
+func init()  {
+	doInit()
+}
+
+// doInit does the initialization for this package.
+func doInit() {
 	reg := regexp.MustCompile(`\-\-{0,1}(.+?)=(.+)`)
 	for i := 0; i < len(os.Args); i++ {
 		result := reg.FindStringSubmatch(os.Args[i])
diff --git a/g/internal/cmdenv/cmdenv_test.go b/g/internal/cmdenv/cmdenv_test.go
new file mode 100644
index 000000000..cde037eed
--- /dev/null
+++ b/g/internal/cmdenv/cmdenv_test.go
@@ -0,0 +1,29 @@
+// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+//
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file,
+// You can obtain one at https://github.com/gogf/gf.
+
+// go test *.go -bench=".*" -benchmem
+
+package cmdenv
+
+import (
+	"github.com/gogf/gf/g/test/gtest"
+	"os"
+	"testing"
+)
+
+func Test_Get(t *testing.T) {
+	os.Args = []string{"--gf.test.value1=111"}
+	os.Setenv("GF_TEST_VALUE1", "222")
+	os.Setenv("GF_TEST_VALUE2", "333")
+	doInit()
+	gtest.Case(t, func() {
+		gtest.Assert(Get("gf.test.value1").String(),    "111")
+		gtest.Assert(Get("gf.test.value2").String(),    "333")
+		gtest.Assert(Get("gf.test.value3").String(),    "")
+		gtest.Assert(Get("gf.test.value3", 1).String(), "1")
+	})
+}
+
diff --git a/g/os/gcmd/gcmd.go b/g/os/gcmd/gcmd.go
index db7f8e2c6..35f2b0bb9 100644
--- a/g/os/gcmd/gcmd.go
+++ b/g/os/gcmd/gcmd.go
@@ -24,13 +24,19 @@ type gCmdOption struct {
 	options map[string]string
 }
 
-var Value = &gCmdValue{}                 // Console values.
-var Option = &gCmdOption{}               // Console options.
+var Value      = &gCmdValue{}            // Console values.
+var Option     = &gCmdOption{}           // Console options.
 var cmdFuncMap = make(map[string]func()) // Registered callback functions.
 
 func init() {
-	reg := regexp.MustCompile(`\-\-{0,1}(.+?)=(.+)`)
+	doInit()
+}
+
+// doInit does the initialization for this package.
+func doInit() {
+	Value.values   = Value.values[:0]
 	Option.options = make(map[string]string)
+	reg := regexp.MustCompile(`\-\-{0,1}(.+?)=(.+)`)
 	for i := 0; i < len(os.Args); i++ {
 		result := reg.FindStringSubmatch(os.Args[i])
 		if len(result) > 1 {
diff --git a/g/os/gcmd/gcmd_z_unit_test.go b/g/os/gcmd/gcmd_z_unit_test.go
new file mode 100644
index 000000000..bd9e05a84
--- /dev/null
+++ b/g/os/gcmd/gcmd_z_unit_test.go
@@ -0,0 +1,28 @@
+// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+//
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file,
+// You can obtain one at https://github.com/gogf/gf.
+
+// go test *.go -bench=".*" -benchmem
+
+package gcmd
+
+import (
+	"github.com/gogf/gf/g/test/gtest"
+	"os"
+	"testing"
+)
+
+
+func Test_ValueAndOption(t *testing.T) {
+	os.Args = []string{"v1", "v2", "--o1=111", "-o2=222"}
+	doInit()
+	gtest.Case(t, func() {
+		gtest.Assert(Value.GetAll(), []string{"v1", "v2"})
+		gtest.Assert(Value.Get(0), "v1")
+		gtest.Assert(Value.Get(1), "v2")
+		gtest.Assert(Value.Get(2), "")
+	})
+}
+