diff --git a/g/util/grand/grand.go b/g/util/grand/grand.go
index ed492f6ea..d74cbc653 100644
--- a/g/util/grand/grand.go
+++ b/g/util/grand/grand.go
@@ -19,9 +19,9 @@ func Meet(num, total int) bool {
     return Rand(0, total) <= num
 }
 
-// 随机计算是否满足给定的概率(float64)
-func MeetProb(prob float64) bool {
-    return Rand(0, 1e17) <= int(prob*1e17)
+// 随机计算是否满足给定的概率(float32)
+func MeetProb(prob float32) bool {
+    return Rand(0, 1e7) <= int(prob*1e7)
 }
 
 // Rand 别名
diff --git a/geg/other/test2.go b/geg/other/test2.go
index 65b39b5ea..9bc299382 100644
--- a/geg/other/test2.go
+++ b/geg/other/test2.go
@@ -1,15 +1,9 @@
 package main
 
 import (
-    "gitee.com/johng/gf/g/os/gcron"
-    "gitee.com/johng/gf/g/os/glog"
-    "time"
+    "fmt"
 )
 
 func main() {
-    gcron.AddSingleton("* * * * * *", func() {
-        glog.Println("doing")
-        time.Sleep(2*time.Second)
-    })
-    select { }
+    fmt.Println(float32(10)/3)
 }
\ No newline at end of file