diff --git a/os/gcron/gcron.go b/os/gcron/gcron.go
index ae8ee328c..aeb63bc8b 100644
--- a/os/gcron/gcron.go
+++ b/os/gcron/gcron.go
@@ -8,7 +8,7 @@
 package gcron
 
 import (
-	"math"
+	"github.com/gogf/gf/os/glog"
 	"time"
 
 	"github.com/gogf/gf/os/gtimer"
@@ -19,7 +19,6 @@ const (
 	StatusRunning = gtimer.StatusRunning
 	StatusStopped = gtimer.StatusStopped
 	StatusClosed  = gtimer.StatusClosed
-	defaultTimes  = math.MaxInt32
 )
 
 var (
@@ -27,22 +26,36 @@ var (
 	defaultCron = New()
 )
 
+// SetLogger sets the logger for cron.
+func SetLogger(logger *glog.Logger) {
+	defaultCron.SetLogger(logger)
+}
+
+// GetLogger returns the logger in the cron.
+func GetLogger() *glog.Logger {
+	return defaultCron.GetLogger()
+}
+
 // SetLogPath sets the logging folder path for default cron object.
+// Deprecated, use SetLogger instead.
 func SetLogPath(path string) {
 	defaultCron.SetLogPath(path)
 }
 
 // GetLogPath returns the logging folder path of default cron object.
+// Deprecated, use GetLogger instead.
 func GetLogPath() string {
 	return defaultCron.GetLogPath()
 }
 
 // SetLogLevel sets the logging level for default cron object.
+// Deprecated, use SetLogger instead.
 func SetLogLevel(level int) {
 	defaultCron.SetLogLevel(level)
 }
 
 // GetLogLevel returns the logging level for default cron object.
+// Deprecated, use GetLogger instead.
 func GetLogLevel() int {
 	return defaultCron.GetLogLevel()
 }
diff --git a/os/gtimer/gtimer.go b/os/gtimer/gtimer.go
index 5cc849f7b..3491f6567 100644
--- a/os/gtimer/gtimer.go
+++ b/os/gtimer/gtimer.go
@@ -20,7 +20,6 @@ package gtimer
 
 import (
 	"github.com/gogf/gf/container/gtype"
-	"math"
 	"sync"
 	"time"
 
@@ -47,7 +46,6 @@ const (
 	StatusStopped            = 2                    // Job or Timer is stopped.
 	StatusClosed             = -1                   // Job or Timer is closed and waiting to be deleted.
 	panicExit                = "exit"               // panicExit is used for custom job exit with panic.
-	defaultTimes             = math.MaxInt32        // defaultTimes is the default limit running times, a big number.
 	defaultTimerInterval     = 100                  // defaultTimerInterval is the default timer interval in milliseconds.
 	commandEnvKeyForInterval = "gf.gtimer.interval" // commandEnvKeyForInterval is the key for command argument or environment configuring default interval duration for timer.
 )
diff --git a/os/gtimer/gtimer_timer.go b/os/gtimer/gtimer_timer.go
index 7022d87a3..2c43ba8fd 100644
--- a/os/gtimer/gtimer_timer.go
+++ b/os/gtimer/gtimer_timer.go
@@ -28,7 +28,7 @@ func New(options ...TimerOptions) *Timer {
 
 // Add adds a timing job to the timer, which runs in interval of <interval>.
 func (t *Timer) Add(interval time.Duration, job JobFunc) *Entry {
-	return t.createEntry(interval, job, false, defaultTimes, StatusReady)
+	return t.createEntry(interval, job, false, -1, StatusReady)
 }
 
 // AddEntry adds a timing job to the timer with detailed parameters.
@@ -48,7 +48,7 @@ func (t *Timer) AddEntry(interval time.Duration, job JobFunc, singleton bool, ti
 
 // AddSingleton is a convenience function for add singleton mode job.
 func (t *Timer) AddSingleton(interval time.Duration, job JobFunc) *Entry {
-	return t.createEntry(interval, job, true, defaultTimes, StatusReady)
+	return t.createEntry(interval, job, true, -1, StatusReady)
 }
 
 // AddOnce is a convenience function for adding a job which only runs once and then exits.