diff --git a/frame/gins/gins_database.go b/frame/gins/gins_database.go
index e313e1ec5..2e92392ed 100644
--- a/frame/gins/gins_database.go
+++ b/frame/gins/gins_database.go
@@ -48,22 +48,26 @@ func Database(name ...string) gdb.DB {
 			configMap = Config().GetMap(configNodeKey)
 		}
 		if len(configMap) == 0 && !gdb.IsConfigured() {
-			if !Config().Available() {
+			configFilePath, err := Config().GetFilePath()
+			if configFilePath == "" {
 				exampleFileName := "config.example.toml"
-				if Config().Available(exampleFileName) {
-					panic(gerror.Newf(
+				if exampleConfigFilePath, _ := Config().GetFilePath(exampleFileName); exampleConfigFilePath != "" {
+					panic(gerror.Wrapf(
+						err,
 						`configuration file "%s" not found, but found "%s", did you miss renaming the configuration example file?`,
 						Config().GetFileName(),
 						exampleFileName,
 					))
 				} else {
-					panic(gerror.Newf(
+					panic(gerror.Wrapf(
+						err,
 						`configuration file "%s" not found, did you miss the configuration file or the file name setting?`,
 						Config().GetFileName(),
 					))
 				}
 			}
-			panic(gerror.Newf(
+			panic(gerror.Wrapf(
+				err,
 				`database initialization failed: "%s" node not found, is configuration file or configuration node missing?`,
 				configNodeNameDatabase,
 			))
diff --git a/frame/gins/gins_redis.go b/frame/gins/gins_redis.go
index 12ba495b4..ef0ad47f4 100644
--- a/frame/gins/gins_redis.go
+++ b/frame/gins/gins_redis.go
@@ -47,7 +47,14 @@ func Redis(name ...string) *gredis.Redis {
 				panic(fmt.Sprintf(`configuration for redis not found for group "%s"`, group))
 			}
 		} else {
-			panic(fmt.Sprintf(`incomplete configuration for redis: "redis" node not found in config file "%s"`, config.FilePath()))
+			filepath, err := config.GetFilePath()
+			if err != nil {
+				panic(err)
+			}
+			panic(fmt.Sprintf(
+				`incomplete configuration for redis: "redis" node not found in config file "%s"`,
+				filepath,
+			))
 		}
 		return nil
 	})
diff --git a/i18n/gi18n/gi18n.go b/i18n/gi18n/gi18n.go
index 6fc153d73..c3665ad72 100644
--- a/i18n/gi18n/gi18n.go
+++ b/i18n/gi18n/gi18n.go
@@ -53,7 +53,7 @@ func TranslateFormat(format string, values ...interface{}) string {
 // configured language. If <language> is given empty string, it uses the default configured
 // language for the translation.
 func TranslateFormatLang(language string, format string, values ...interface{}) string {
-	return defaultManager.TranslateFormatLang(format, language, values...)
+	return defaultManager.TranslateFormatLang(language, format, values...)
 }
 
 // Translate translates <content> with configured language and returns the translated content.
diff --git a/os/gcfg/gcfg.go b/os/gcfg/gcfg.go
index ef672f429..1cd6a7d25 100644
--- a/os/gcfg/gcfg.go
+++ b/os/gcfg/gcfg.go
@@ -11,6 +11,7 @@ import (
 	"bytes"
 	"errors"
 	"fmt"
+	"github.com/gogf/gf/errors/gerror"
 	"github.com/gogf/gf/internal/intlog"
 	"github.com/gogf/gf/os/gcmd"
 	"github.com/gogf/gf/text/gstr"
@@ -45,7 +46,7 @@ var (
 )
 
 // New returns a new configuration management object.
-// The parameter <file> specifies the default configuration file name for reading.
+// The parameter `file` specifies the default configuration file name for reading.
 func New(file ...string) *Config {
 	name := DefaultConfigFile
 	if len(file) > 0 {
@@ -67,7 +68,7 @@ func New(file ...string) *Config {
 			_ = c.SetPath(customPath)
 		} else {
 			if errorPrint() {
-				glog.Errorf("Configuration directory path does not exist: %s", customPath)
+				glog.Errorf("[gcfg] Configuration directory path does not exist: %s", customPath)
 			}
 		}
 	} else {
@@ -93,42 +94,8 @@ func New(file ...string) *Config {
 	return c
 }
 
-// filePath returns the absolute configuration file path for the given filename by <file>.
-func (c *Config) filePath(file ...string) (path string) {
-	name := c.defaultName
-	if len(file) > 0 {
-		name = file[0]
-	}
-	path = c.FilePath(name)
-	if path == "" {
-		var (
-			buffer = bytes.NewBuffer(nil)
-		)
-		if c.searchPaths.Len() > 0 {
-			buffer.WriteString(fmt.Sprintf("[gcfg] cannot find config file \"%s\" in following paths:", name))
-			c.searchPaths.RLockFunc(func(array []string) {
-				index := 1
-				for _, v := range array {
-					v = gstr.TrimRight(v, `\/`)
-					buffer.WriteString(fmt.Sprintf("\n%d. %s", index, v))
-					index++
-					buffer.WriteString(fmt.Sprintf("\n%d. %s", index, v+gfile.Separator+"config"))
-					index++
-				}
-			})
-
-		} else {
-			buffer.WriteString(fmt.Sprintf("[gcfg] cannot find config file \"%s\" with no path set/add", name))
-		}
-		if errorPrint() {
-			glog.Error(buffer.String())
-		}
-	}
-	return path
-}
-
 // SetPath sets the configuration directory path for file search.
-// The parameter <path> can be absolute or relative path,
+// The parameter `path` can be absolute or relative path,
 // but absolute path is strongly recommended.
 func (c *Config) SetPath(path string) error {
 	var (
@@ -246,14 +213,14 @@ func (c *Config) AddPath(path string) error {
 		} else {
 			buffer.WriteString(fmt.Sprintf(`[gcfg] AddPath failed: path "%s" does not exist`, path))
 		}
-		err := errors.New(buffer.String())
+		err := gerror.New(buffer.String())
 		if errorPrint() {
 			glog.Error(err)
 		}
 		return err
 	}
 	if !isDir {
-		err := fmt.Errorf(`[gcfg] AddPath failed: path "%s" should be directory type`, path)
+		err := gerror.Newf(`[gcfg] AddPath failed: path "%s" should be directory type`, path)
 		if errorPrint() {
 			glog.Error(err)
 		}
@@ -268,11 +235,38 @@ func (c *Config) AddPath(path string) error {
 	return nil
 }
 
-// GetFilePath returns the absolute path of the specified configuration file.
-// If <file> is not passed, it returns the configuration file path of the default name.
-// If the specified configuration file does not exist,
-// an empty string is returned.
-func (c *Config) FilePath(file ...string) (path string) {
+// SetFileName sets the default configuration file name.
+func (c *Config) SetFileName(name string) *Config {
+	c.defaultName = name
+	return c
+}
+
+// GetFileName returns the default configuration file name.
+func (c *Config) GetFileName() string {
+	return c.defaultName
+}
+
+// Available checks and returns whether configuration of given `file` is available.
+func (c *Config) Available(file ...string) bool {
+	var name string
+	if len(file) > 0 && file[0] != "" {
+		name = file[0]
+	} else {
+		name = c.defaultName
+	}
+	if path, _ := c.GetFilePath(name); path != "" {
+		return true
+	}
+	if GetContent(name) != "" {
+		return true
+	}
+	return false
+}
+
+// GetFilePath returns the absolute configuration file path for the given filename by `file`.
+// If `file` is not passed, it returns the configuration file path of the default name.
+// It returns an empty `path` string and an error if the given `file` does not exist.
+func (c *Config) GetFilePath(file ...string) (path string, err error) {
 	name := c.defaultName
 	if len(file) > 0 {
 		name = file[0]
@@ -308,38 +302,32 @@ func (c *Config) FilePath(file ...string) (path string) {
 			}
 		}
 	})
+	// If it cannot find the path of `file`, it formats and returns a detailed error.
+	if path == "" {
+		var (
+			buffer = bytes.NewBuffer(nil)
+		)
+		if c.searchPaths.Len() > 0 {
+			buffer.WriteString(fmt.Sprintf(`[gcfg] cannot find config file "%s" in resource manager or the following paths:`, name))
+			c.searchPaths.RLockFunc(func(array []string) {
+				index := 1
+				for _, v := range array {
+					v = gstr.TrimRight(v, `\/`)
+					buffer.WriteString(fmt.Sprintf("\n%d. %s", index, v))
+					index++
+					buffer.WriteString(fmt.Sprintf("\n%d. %s", index, v+gfile.Separator+"config"))
+					index++
+				}
+			})
+		} else {
+			buffer.WriteString(fmt.Sprintf("[gcfg] cannot find config file \"%s\" with no path configured", name))
+		}
+		err = gerror.New(buffer.String())
+	}
 	return
 }
 
-// SetFileName sets the default configuration file name.
-func (c *Config) SetFileName(name string) *Config {
-	c.defaultName = name
-	return c
-}
-
-// GetFileName returns the default configuration file name.
-func (c *Config) GetFileName() string {
-	return c.defaultName
-}
-
-// Available checks and returns whether configuration of given <file> is available.
-func (c *Config) Available(file ...string) bool {
-	var name string
-	if len(file) > 0 && file[0] != "" {
-		name = file[0]
-	} else {
-		name = c.defaultName
-	}
-	if c.FilePath(name) != "" {
-		return true
-	}
-	if GetContent(name) != "" {
-		return true
-	}
-	return false
-}
-
-// getJson returns a *gjson.Json object for the specified <file> content.
+// getJson returns a *gjson.Json object for the specified `file` content.
 // It would print error if file reading fails. It return nil if any error occurs.
 func (c *Config) getJson(file ...string) *gjson.Json {
 	var name string
@@ -350,14 +338,18 @@ func (c *Config) getJson(file ...string) *gjson.Json {
 	}
 	r := c.jsonMap.GetOrSetFuncLock(name, func() interface{} {
 		var (
-			content  = ""
-			filePath = ""
+			err      error
+			content  string
+			filePath string
 		)
 		// The configured content can be any kind of data type different from its file type.
 		isFromConfigContent := true
 		if content = GetContent(name); content == "" {
 			isFromConfigContent = false
-			filePath = c.filePath(name)
+			filePath, err = c.GetFilePath(name)
+			if err != nil && errorPrint() {
+				glog.Error(err)
+			}
 			if filePath == "" {
 				return nil
 			}
@@ -369,8 +361,7 @@ func (c *Config) getJson(file ...string) *gjson.Json {
 		}
 		// Note that the underlying configuration json object operations are concurrent safe.
 		var (
-			j   *gjson.Json
-			err error
+			j *gjson.Json
 		)
 		dataType := gfile.ExtName(name)
 		if gjson.IsValidDataType(dataType) && !isFromConfigContent {
@@ -394,9 +385,9 @@ func (c *Config) getJson(file ...string) *gjson.Json {
 		}
 		if errorPrint() {
 			if filePath != "" {
-				glog.Criticalf(`[gcfg] Load config file "%s" failed: %s`, filePath, err.Error())
+				glog.Criticalf(`[gcfg] load config file "%s" failed: %s`, filePath, err.Error())
 			} else {
-				glog.Criticalf(`[gcfg] Load configuration failed: %s`, err.Error())
+				glog.Criticalf(`[gcfg] load configuration failed: %s`, err.Error())
 			}
 		}
 		return nil
diff --git a/os/gcfg/gcfg_api.go b/os/gcfg/gcfg_api.go
index 75f80a4d0..504e447d2 100644
--- a/os/gcfg/gcfg_api.go
+++ b/os/gcfg/gcfg_api.go
@@ -16,7 +16,7 @@ import (
 	"github.com/gogf/gf/os/gtime"
 )
 
-// Set sets value with specified <pattern>.
+// Set sets value with specified `pattern`.
 // It supports hierarchical data access by char separator, which is '.' in default.
 // It is commonly used for updates certain configuration value in runtime.
 func (c *Config) Set(pattern string, value interface{}) error {
@@ -26,14 +26,14 @@ func (c *Config) Set(pattern string, value interface{}) error {
 	return nil
 }
 
-// Get retrieves and returns value by specified <pattern>.
-// It returns all values of current Json object if <pattern> is given empty or string ".".
-// It returns nil if no value found by <pattern>.
+// Get retrieves and returns value by specified `pattern`.
+// It returns all values of current Json object if `pattern` is given empty or string ".".
+// It returns nil if no value found by `pattern`.
 //
-// We can also access slice item by its index number in <pattern> like:
+// We can also access slice item by its index number in `pattern` like:
 // "list.10", "array.0.name", "array.0.1.id".
 //
-// It returns a default value specified by <def> if value for <pattern> is not found.
+// It returns a default value specified by `def` if value for `pattern` is not found.
 func (c *Config) Get(pattern string, def ...interface{}) interface{} {
 	if j := c.getJson(); j != nil {
 		return j.Get(pattern, def...)
@@ -41,7 +41,7 @@ func (c *Config) Get(pattern string, def ...interface{}) interface{} {
 	return nil
 }
 
-// GetVar returns a gvar.Var with value by given <pattern>.
+// GetVar returns a gvar.Var with value by given `pattern`.
 func (c *Config) GetVar(pattern string, def ...interface{}) *gvar.Var {
 	if j := c.getJson(); j != nil {
 		return j.GetVar(pattern, def...)
@@ -49,7 +49,7 @@ func (c *Config) GetVar(pattern string, def ...interface{}) *gvar.Var {
 	return gvar.New(nil)
 }
 
-// Contains checks whether the value by specified <pattern> exist.
+// Contains checks whether the value by specified `pattern` exist.
 func (c *Config) Contains(pattern string) bool {
 	if j := c.getJson(); j != nil {
 		return j.Contains(pattern)
@@ -57,7 +57,7 @@ func (c *Config) Contains(pattern string) bool {
 	return false
 }
 
-// GetMap retrieves and returns the value by specified <pattern> as map[string]interface{}.
+// GetMap retrieves and returns the value by specified `pattern` as map[string]interface{}.
 func (c *Config) GetMap(pattern string, def ...interface{}) map[string]interface{} {
 	if j := c.getJson(); j != nil {
 		return j.GetMap(pattern, def...)
@@ -65,7 +65,7 @@ func (c *Config) GetMap(pattern string, def ...interface{}) map[string]interface
 	return nil
 }
 
-// GetMapStrStr retrieves and returns the value by specified <pattern> as map[string]string.
+// GetMapStrStr retrieves and returns the value by specified `pattern` as map[string]string.
 func (c *Config) GetMapStrStr(pattern string, def ...interface{}) map[string]string {
 	if j := c.getJson(); j != nil {
 		return j.GetMapStrStr(pattern, def...)
@@ -73,7 +73,7 @@ func (c *Config) GetMapStrStr(pattern string, def ...interface{}) map[string]str
 	return nil
 }
 
-// GetArray retrieves the value by specified <pattern>,
+// GetArray retrieves the value by specified `pattern`,
 // and converts it to a slice of []interface{}.
 func (c *Config) GetArray(pattern string, def ...interface{}) []interface{} {
 	if j := c.getJson(); j != nil {
@@ -82,7 +82,7 @@ func (c *Config) GetArray(pattern string, def ...interface{}) []interface{} {
 	return nil
 }
 
-// GetBytes retrieves the value by specified <pattern> and converts it to []byte.
+// GetBytes retrieves the value by specified `pattern` and converts it to []byte.
 func (c *Config) GetBytes(pattern string, def ...interface{}) []byte {
 	if j := c.getJson(); j != nil {
 		return j.GetBytes(pattern, def...)
@@ -90,7 +90,7 @@ func (c *Config) GetBytes(pattern string, def ...interface{}) []byte {
 	return nil
 }
 
-// GetString retrieves the value by specified <pattern> and converts it to string.
+// GetString retrieves the value by specified `pattern` and converts it to string.
 func (c *Config) GetString(pattern string, def ...interface{}) string {
 	if j := c.getJson(); j != nil {
 		return j.GetString(pattern, def...)
@@ -98,7 +98,7 @@ func (c *Config) GetString(pattern string, def ...interface{}) string {
 	return ""
 }
 
-// GetStrings retrieves the value by specified <pattern> and converts it to []string.
+// GetStrings retrieves the value by specified `pattern` and converts it to []string.
 func (c *Config) GetStrings(pattern string, def ...interface{}) []string {
 	if j := c.getJson(); j != nil {
 		return j.GetStrings(pattern, def...)
@@ -115,7 +115,7 @@ func (c *Config) GetInterfaces(pattern string, def ...interface{}) []interface{}
 	return nil
 }
 
-// GetBool retrieves the value by specified <pattern>,
+// GetBool retrieves the value by specified `pattern`,
 // converts and returns it as bool.
 // It returns false when value is: "", 0, false, off, nil;
 // or returns true instead.
@@ -126,7 +126,7 @@ func (c *Config) GetBool(pattern string, def ...interface{}) bool {
 	return false
 }
 
-// GetFloat32 retrieves the value by specified <pattern> and converts it to float32.
+// GetFloat32 retrieves the value by specified `pattern` and converts it to float32.
 func (c *Config) GetFloat32(pattern string, def ...interface{}) float32 {
 	if j := c.getJson(); j != nil {
 		return j.GetFloat32(pattern, def...)
@@ -134,7 +134,7 @@ func (c *Config) GetFloat32(pattern string, def ...interface{}) float32 {
 	return 0
 }
 
-// GetFloat64 retrieves the value by specified <pattern> and converts it to float64.
+// GetFloat64 retrieves the value by specified `pattern` and converts it to float64.
 func (c *Config) GetFloat64(pattern string, def ...interface{}) float64 {
 	if j := c.getJson(); j != nil {
 		return j.GetFloat64(pattern, def...)
@@ -142,7 +142,7 @@ func (c *Config) GetFloat64(pattern string, def ...interface{}) float64 {
 	return 0
 }
 
-// GetFloats retrieves the value by specified <pattern> and converts it to []float64.
+// GetFloats retrieves the value by specified `pattern` and converts it to []float64.
 func (c *Config) GetFloats(pattern string, def ...interface{}) []float64 {
 	if j := c.getJson(); j != nil {
 		return j.GetFloats(pattern, def...)
@@ -150,7 +150,7 @@ func (c *Config) GetFloats(pattern string, def ...interface{}) []float64 {
 	return nil
 }
 
-// GetInt retrieves the value by specified <pattern> and converts it to int.
+// GetInt retrieves the value by specified `pattern` and converts it to int.
 func (c *Config) GetInt(pattern string, def ...interface{}) int {
 	if j := c.getJson(); j != nil {
 		return j.GetInt(pattern, def...)
@@ -158,7 +158,7 @@ func (c *Config) GetInt(pattern string, def ...interface{}) int {
 	return 0
 }
 
-// GetInt8 retrieves the value by specified <pattern> and converts it to int8.
+// GetInt8 retrieves the value by specified `pattern` and converts it to int8.
 func (c *Config) GetInt8(pattern string, def ...interface{}) int8 {
 	if j := c.getJson(); j != nil {
 		return j.GetInt8(pattern, def...)
@@ -166,7 +166,7 @@ func (c *Config) GetInt8(pattern string, def ...interface{}) int8 {
 	return 0
 }
 
-// GetInt16 retrieves the value by specified <pattern> and converts it to int16.
+// GetInt16 retrieves the value by specified `pattern` and converts it to int16.
 func (c *Config) GetInt16(pattern string, def ...interface{}) int16 {
 	if j := c.getJson(); j != nil {
 		return j.GetInt16(pattern, def...)
@@ -174,7 +174,7 @@ func (c *Config) GetInt16(pattern string, def ...interface{}) int16 {
 	return 0
 }
 
-// GetInt32 retrieves the value by specified <pattern> and converts it to int32.
+// GetInt32 retrieves the value by specified `pattern` and converts it to int32.
 func (c *Config) GetInt32(pattern string, def ...interface{}) int32 {
 	if j := c.getJson(); j != nil {
 		return j.GetInt32(pattern, def...)
@@ -182,7 +182,7 @@ func (c *Config) GetInt32(pattern string, def ...interface{}) int32 {
 	return 0
 }
 
-// GetInt64 retrieves the value by specified <pattern> and converts it to int64.
+// GetInt64 retrieves the value by specified `pattern` and converts it to int64.
 func (c *Config) GetInt64(pattern string, def ...interface{}) int64 {
 	if j := c.getJson(); j != nil {
 		return j.GetInt64(pattern, def...)
@@ -190,7 +190,7 @@ func (c *Config) GetInt64(pattern string, def ...interface{}) int64 {
 	return 0
 }
 
-// GetInts retrieves the value by specified <pattern> and converts it to []int.
+// GetInts retrieves the value by specified `pattern` and converts it to []int.
 func (c *Config) GetInts(pattern string, def ...interface{}) []int {
 	if j := c.getJson(); j != nil {
 		return j.GetInts(pattern, def...)
@@ -198,7 +198,7 @@ func (c *Config) GetInts(pattern string, def ...interface{}) []int {
 	return nil
 }
 
-// GetUint retrieves the value by specified <pattern> and converts it to uint.
+// GetUint retrieves the value by specified `pattern` and converts it to uint.
 func (c *Config) GetUint(pattern string, def ...interface{}) uint {
 	if j := c.getJson(); j != nil {
 		return j.GetUint(pattern, def...)
@@ -206,7 +206,7 @@ func (c *Config) GetUint(pattern string, def ...interface{}) uint {
 	return 0
 }
 
-// GetUint8 retrieves the value by specified <pattern> and converts it to uint8.
+// GetUint8 retrieves the value by specified `pattern` and converts it to uint8.
 func (c *Config) GetUint8(pattern string, def ...interface{}) uint8 {
 	if j := c.getJson(); j != nil {
 		return j.GetUint8(pattern, def...)
@@ -214,7 +214,7 @@ func (c *Config) GetUint8(pattern string, def ...interface{}) uint8 {
 	return 0
 }
 
-// GetUint16 retrieves the value by specified <pattern> and converts it to uint16.
+// GetUint16 retrieves the value by specified `pattern` and converts it to uint16.
 func (c *Config) GetUint16(pattern string, def ...interface{}) uint16 {
 	if j := c.getJson(); j != nil {
 		return j.GetUint16(pattern, def...)
@@ -222,7 +222,7 @@ func (c *Config) GetUint16(pattern string, def ...interface{}) uint16 {
 	return 0
 }
 
-// GetUint32 retrieves the value by specified <pattern> and converts it to uint32.
+// GetUint32 retrieves the value by specified `pattern` and converts it to uint32.
 func (c *Config) GetUint32(pattern string, def ...interface{}) uint32 {
 	if j := c.getJson(); j != nil {
 		return j.GetUint32(pattern, def...)
@@ -230,7 +230,7 @@ func (c *Config) GetUint32(pattern string, def ...interface{}) uint32 {
 	return 0
 }
 
-// GetUint64 retrieves the value by specified <pattern> and converts it to uint64.
+// GetUint64 retrieves the value by specified `pattern` and converts it to uint64.
 func (c *Config) GetUint64(pattern string, def ...interface{}) uint64 {
 	if j := c.getJson(); j != nil {
 		return j.GetUint64(pattern, def...)
@@ -238,7 +238,7 @@ func (c *Config) GetUint64(pattern string, def ...interface{}) uint64 {
 	return 0
 }
 
-// GetTime retrieves the value by specified <pattern> and converts it to time.Time.
+// GetTime retrieves the value by specified `pattern` and converts it to time.Time.
 func (c *Config) GetTime(pattern string, format ...string) time.Time {
 	if j := c.getJson(); j != nil {
 		return j.GetTime(pattern, format...)
@@ -246,7 +246,7 @@ func (c *Config) GetTime(pattern string, format ...string) time.Time {
 	return time.Time{}
 }
 
-// GetDuration retrieves the value by specified <pattern> and converts it to time.Duration.
+// GetDuration retrieves the value by specified `pattern` and converts it to time.Duration.
 func (c *Config) GetDuration(pattern string, def ...interface{}) time.Duration {
 	if j := c.getJson(); j != nil {
 		return j.GetDuration(pattern, def...)
@@ -254,7 +254,7 @@ func (c *Config) GetDuration(pattern string, def ...interface{}) time.Duration {
 	return 0
 }
 
-// GetGTime retrieves the value by specified <pattern> and converts it to *gtime.Time.
+// GetGTime retrieves the value by specified `pattern` and converts it to *gtime.Time.
 func (c *Config) GetGTime(pattern string, format ...string) *gtime.Time {
 	if j := c.getJson(); j != nil {
 		return j.GetGTime(pattern, format...)
@@ -262,7 +262,7 @@ func (c *Config) GetGTime(pattern string, format ...string) *gtime.Time {
 	return nil
 }
 
-// GetJson gets the value by specified <pattern>,
+// GetJson gets the value by specified `pattern`,
 // and converts it to a un-concurrent-safe Json object.
 func (c *Config) GetJson(pattern string, def ...interface{}) *gjson.Json {
 	if j := c.getJson(); j != nil {
@@ -271,7 +271,7 @@ func (c *Config) GetJson(pattern string, def ...interface{}) *gjson.Json {
 	return nil
 }
 
-// GetJsons gets the value by specified <pattern>,
+// GetJsons gets the value by specified `pattern`,
 // and converts it to a slice of un-concurrent-safe Json object.
 func (c *Config) GetJsons(pattern string, def ...interface{}) []*gjson.Json {
 	if j := c.getJson(); j != nil {
@@ -280,7 +280,7 @@ func (c *Config) GetJsons(pattern string, def ...interface{}) []*gjson.Json {
 	return nil
 }
 
-// GetJsonMap gets the value by specified <pattern>,
+// GetJsonMap gets the value by specified `pattern`,
 // and converts it to a map of un-concurrent-safe Json object.
 func (c *Config) GetJsonMap(pattern string, def ...interface{}) map[string]*gjson.Json {
 	if j := c.getJson(); j != nil {
@@ -289,8 +289,8 @@ func (c *Config) GetJsonMap(pattern string, def ...interface{}) map[string]*gjso
 	return nil
 }
 
-// GetStruct retrieves the value by specified <pattern> and converts it to specified object
-// <pointer>. The <pointer> should be the pointer to an object.
+// GetStruct retrieves the value by specified `pattern` and converts it to specified object
+// `pointer`. The `pointer` should be the pointer to an object.
 func (c *Config) GetStruct(pattern string, pointer interface{}, mapping ...map[string]string) error {
 	if j := c.getJson(); j != nil {
 		return j.GetStruct(pattern, pointer, mapping...)
@@ -324,7 +324,7 @@ func (c *Config) GetStructsDeep(pattern string, pointer interface{}, mapping ...
 	return errors.New("configuration not found")
 }
 
-// GetMapToMap retrieves the value by specified <pattern> and converts it to specified map variable.
+// GetMapToMap retrieves the value by specified `pattern` and converts it to specified map variable.
 // See gconv.MapToMap.
 func (c *Config) GetMapToMap(pattern string, pointer interface{}, mapping ...map[string]string) error {
 	if j := c.getJson(); j != nil {
@@ -333,7 +333,7 @@ func (c *Config) GetMapToMap(pattern string, pointer interface{}, mapping ...map
 	return errors.New("configuration not found")
 }
 
-// GetMapToMapDeep retrieves the value by specified <pattern> and converts it to specified map
+// GetMapToMapDeep retrieves the value by specified `pattern` and converts it to specified map
 // variable recursively.
 // See gconv.MapToMapDeep.
 func (c *Config) GetMapToMapDeep(pattern string, pointer interface{}, mapping ...map[string]string) error {
@@ -343,7 +343,7 @@ func (c *Config) GetMapToMapDeep(pattern string, pointer interface{}, mapping ..
 	return errors.New("configuration not found")
 }
 
-// GetMapToMaps retrieves the value by specified <pattern> and converts it to specified map slice
+// GetMapToMaps retrieves the value by specified `pattern` and converts it to specified map slice
 // variable.
 // See gconv.MapToMaps.
 func (c *Config) GetMapToMaps(pattern string, pointer interface{}, mapping ...map[string]string) error {
@@ -353,7 +353,7 @@ func (c *Config) GetMapToMaps(pattern string, pointer interface{}, mapping ...ma
 	return errors.New("configuration not found")
 }
 
-// GetMapToMapsDeep retrieves the value by specified <pattern> and converts it to specified map slice
+// GetMapToMapsDeep retrieves the value by specified `pattern` and converts it to specified map slice
 // variable recursively.
 // See gconv.MapToMapsDeep.
 func (c *Config) GetMapToMapsDeep(pattern string, pointer interface{}, mapping ...map[string]string) error {
@@ -382,7 +382,7 @@ func (c *Config) ToArray() []interface{} {
 }
 
 // ToStruct converts current Json object to specified object.
-// The <pointer> should be a pointer type of *struct.
+// The `pointer` should be a pointer type of *struct.
 func (c *Config) ToStruct(pointer interface{}, mapping ...map[string]string) error {
 	if j := c.getJson(); j != nil {
 		return j.ToStruct(pointer, mapping...)
@@ -391,7 +391,7 @@ func (c *Config) ToStruct(pointer interface{}, mapping ...map[string]string) err
 }
 
 // ToStructDeep converts current Json object to specified object recursively.
-// The <pointer> should be a pointer type of *struct.
+// The `pointer` should be a pointer type of *struct.
 func (c *Config) ToStructDeep(pointer interface{}, mapping ...map[string]string) error {
 	if j := c.getJson(); j != nil {
 		return j.ToStructDeep(pointer, mapping...)
@@ -400,7 +400,7 @@ func (c *Config) ToStructDeep(pointer interface{}, mapping ...map[string]string)
 }
 
 // ToStructs converts current Json object to specified object slice.
-// The <pointer> should be a pointer type of []struct/*struct.
+// The `pointer` should be a pointer type of []struct/*struct.
 func (c *Config) ToStructs(pointer interface{}, mapping ...map[string]string) error {
 	if j := c.getJson(); j != nil {
 		return j.ToStructs(pointer, mapping...)
@@ -409,7 +409,7 @@ func (c *Config) ToStructs(pointer interface{}, mapping ...map[string]string) er
 }
 
 // ToStructsDeep converts current Json object to specified object slice recursively.
-// The <pointer> should be a pointer type of []struct/*struct.
+// The `pointer` should be a pointer type of []struct/*struct.
 func (c *Config) ToStructsDeep(pointer interface{}, mapping ...map[string]string) error {
 	if j := c.getJson(); j != nil {
 		return j.ToStructsDeep(pointer, mapping...)
@@ -418,7 +418,7 @@ func (c *Config) ToStructsDeep(pointer interface{}, mapping ...map[string]string
 }
 
 // ToMapToMap converts current Json object to specified map variable.
-// The parameter of <pointer> should be type of *map.
+// The parameter of `pointer` should be type of *map.
 func (c *Config) ToMapToMap(pointer interface{}, mapping ...map[string]string) error {
 	if j := c.getJson(); j != nil {
 		return j.ToMapToMap(pointer, mapping...)
@@ -427,7 +427,7 @@ func (c *Config) ToMapToMap(pointer interface{}, mapping ...map[string]string) e
 }
 
 // ToMapToMapDeep converts current Json object to specified map variable recursively.
-// The parameter of <pointer> should be type of *map.
+// The parameter of `pointer` should be type of *map.
 func (c *Config) ToMapToMapDeep(pointer interface{}, mapping ...map[string]string) error {
 	if j := c.getJson(); j != nil {
 		return j.ToMapToMapDeep(pointer, mapping...)
@@ -436,7 +436,7 @@ func (c *Config) ToMapToMapDeep(pointer interface{}, mapping ...map[string]strin
 }
 
 // ToMapToMaps converts current Json object to specified map variable slice.
-// The parameter of <pointer> should be type of []map/*map.
+// The parameter of `pointer` should be type of []map/*map.
 func (c *Config) ToMapToMaps(pointer interface{}, mapping ...map[string]string) error {
 	if j := c.getJson(); j != nil {
 		return j.ToMapToMaps(pointer, mapping...)
@@ -445,7 +445,7 @@ func (c *Config) ToMapToMaps(pointer interface{}, mapping ...map[string]string)
 }
 
 // ToMapToMapsDeep converts current Json object to specified map variable slice recursively.
-// The parameter of <pointer> should be type of []map/*map.
+// The parameter of `pointer` should be type of []map/*map.
 func (c *Config) ToMapToMapsDeep(pointer interface{}, mapping ...map[string]string) error {
 	if j := c.getJson(); j != nil {
 		return j.ToMapToMapsDeep(pointer, mapping...)
diff --git a/os/gcfg/gcfg_config.go b/os/gcfg/gcfg_config.go
index dbf8aef64..68adf275a 100644
--- a/os/gcfg/gcfg_config.go
+++ b/os/gcfg/gcfg_config.go
@@ -16,14 +16,14 @@ var (
 	configs = gmap.NewStrStrMap(true)
 )
 
-// SetContent sets customized configuration content for specified <file>.
-// The <file> is unnecessary param, default is DefaultConfigFile.
+// SetContent sets customized configuration content for specified `file`.
+// The `file` is unnecessary param, default is DefaultConfigFile.
 func SetContent(content string, file ...string) {
 	name := DefaultConfigFile
 	if len(file) > 0 {
 		name = file[0]
 	}
-	// Clear file cache for instances which cached <name>.
+	// Clear file cache for instances which cached `name`.
 	instances.LockFunc(func(m map[string]interface{}) {
 		if configs.Contains(name) {
 			for _, v := range m {
@@ -34,8 +34,8 @@ func SetContent(content string, file ...string) {
 	})
 }
 
-// GetContent returns customized configuration content for specified <file>.
-// The <file> is unnecessary param, default is DefaultConfigFile.
+// GetContent returns customized configuration content for specified `file`.
+// The `file` is unnecessary param, default is DefaultConfigFile.
 func GetContent(file ...string) string {
 	name := DefaultConfigFile
 	if len(file) > 0 {
@@ -44,14 +44,14 @@ func GetContent(file ...string) string {
 	return configs.Get(name)
 }
 
-// RemoveContent removes the global configuration with specified <file>.
-// If <name> is not passed, it removes configuration of the default group name.
+// RemoveContent removes the global configuration with specified `file`.
+// If `name` is not passed, it removes configuration of the default group name.
 func RemoveContent(file ...string) {
 	name := DefaultConfigFile
 	if len(file) > 0 {
 		name = file[0]
 	}
-	// Clear file cache for instances which cached <name>.
+	// Clear file cache for instances which cached `name`.
 	instances.LockFunc(func(m map[string]interface{}) {
 		if configs.Contains(name) {
 			for _, v := range m {
diff --git a/os/gcfg/gcfg_instance.go b/os/gcfg/gcfg_instance.go
index 9eeb07905..4ef396801 100644
--- a/os/gcfg/gcfg_instance.go
+++ b/os/gcfg/gcfg_instance.go
@@ -22,7 +22,7 @@ var (
 )
 
 // Instance returns an instance of Config with default settings.
-// The parameter <name> is the name for the instance. But very note that, if the file "name.toml"
+// The parameter `name` is the name for the instance. But very note that, if the file "name.toml"
 // exists in the configuration directory, it then sets it as the default configuration file. The
 // toml file type is the default configuration file type.
 func Instance(name ...string) *Config {
diff --git a/os/gcfg/gcfg_z_unit_basic_test.go b/os/gcfg/gcfg_z_unit_basic_test.go
index 133f90adc..51fd92638 100644
--- a/os/gcfg/gcfg_z_unit_basic_test.go
+++ b/os/gcfg/gcfg_z_unit_basic_test.go
@@ -81,7 +81,8 @@ array = [1,2,3]
 			"disk":  "127.0.0.1:6379,0",
 			"cache": "127.0.0.1:6379,1",
 		})
-		t.AssertEQ(c.FilePath(), gfile.Pwd()+gfile.Separator+path)
+		filepath, _ := c.GetFilePath()
+		t.AssertEQ(filepath, gfile.Pwd()+gfile.Separator+path)
 	})
 }
 
@@ -223,8 +224,8 @@ func Test_SetFileName(t *testing.T) {
 			"disk":  "127.0.0.1:6379,0",
 			"cache": "127.0.0.1:6379,1",
 		})
-		t.AssertEQ(c.FilePath(), gfile.Pwd()+gfile.Separator+path)
-
+		filepath, _ := c.GetFilePath()
+		t.AssertEQ(filepath, gfile.Pwd()+gfile.Separator+path)
 	})
 }
 
@@ -281,9 +282,9 @@ func TestCfg_AddPath(t *testing.T) {
 func TestCfg_FilePath(t *testing.T) {
 	gtest.C(t, func(t *gtest.T) {
 		c := gcfg.New("config.yml")
-		path := c.FilePath("tmp")
+		path, _ := c.GetFilePath("tmp")
 		t.Assert(path, "")
-		path = c.FilePath("tmp")
+		path, _ = c.GetFilePath("tmp")
 		t.Assert(path, "")
 	})
 }
diff --git a/os/gcfg/gcfg_z_unit_instance_test.go b/os/gcfg/gcfg_z_unit_instance_test.go
index 2cc5e3ab1..879a5461d 100644
--- a/os/gcfg/gcfg_z_unit_instance_test.go
+++ b/os/gcfg/gcfg_z_unit_instance_test.go
@@ -77,7 +77,8 @@ v4 = "1.234"
 			"disk":  "127.0.0.1:6379,0",
 			"cache": "127.0.0.1:6379,1",
 		})
-		t.AssertEQ(c.FilePath(), gfile.Pwd()+gfile.Separator+path)
+		filepath, _ := c.GetFilePath()
+		t.AssertEQ(filepath, gfile.Pwd()+gfile.Separator+path)
 	})
 }