diff --git a/g/os/gfile/gfile.go b/g/os/gfile/gfile.go
index 65821d5e7..e57899c68 100644
--- a/g/os/gfile/gfile.go
+++ b/g/os/gfile/gfile.go
@@ -61,7 +61,7 @@ func Create(path string) error {
     return nil
 }
 
-// 打开文件
+// 打开文件(os.O_RDWR|os.O_CREATE, 0666)
 func Open(path string) (*os.File, error) {
     f, err  := os.OpenFile(path, os.O_RDWR|os.O_CREATE, 0666)
     if err != nil {
@@ -70,7 +70,7 @@ func Open(path string) (*os.File, error) {
     return f, nil
 }
 
-// 打开文件
+// 打开文件(带flag)
 func OpenWithFlag(path string, flag int) (*os.File, error) {
     f, err  := os.OpenFile(path, flag, 0666)
     if err != nil {
@@ -79,6 +79,15 @@ func OpenWithFlag(path string, flag int) (*os.File, error) {
     return f, nil
 }
 
+// 打开文件(带flag&perm)
+func OpenWithFlagPerm(path string, flag int, perm int) (*os.File, error) {
+    f, err  := os.OpenFile(path, flag, os.FileMode(perm))
+    if err != nil {
+        return nil, err
+    }
+    return f, nil
+}
+
 // 判断所给路径文件/文件夹是否存在
 func Exists(path string) bool {
     if _, err := os.Stat(path); !os.IsNotExist(err) {
diff --git a/g/os/gfile/gfile_contents.go b/g/os/gfile/gfile_contents.go
index 93e4ab5ce..26cb3d737 100644
--- a/g/os/gfile/gfile_contents.go
+++ b/g/os/gfile/gfile_contents.go
@@ -13,6 +13,11 @@ import (
     "os"
 )
 
+const (
+    // 方法中涉及到读取的时候的缓冲大小
+    gREAD_BUFFER = 1024
+)
+
 // (文本)读取文件内容
 func GetContents(path string) string {
     return string(GetBinContents(path))
@@ -76,25 +81,34 @@ func PutBinContentsAppend(path string, content []byte) error {
 }
 
 // 获得文件内容下一个指定字节的位置
-func GetNextCharOffset(file *os.File, char string, start int64) int64 {
-    c := []byte(char)[0]
-    b := make([]byte, 1)
-    o := start
+func GetNextCharOffset(file *os.File, char byte, start int64) int64 {
+    buffer := make([]byte, gREAD_BUFFER)
+    offset := start
     for {
-        _, err := file.ReadAt(b, o)
-        if err != nil {
-            return 0
+        if n, err := file.ReadAt(buffer, offset); n > 0 {
+            for i := 0; i < n; i++ {
+                if buffer[i] == char {
+                    return int64(i)
+                }
+            }
+            offset++
+        } else if err != nil {
+            break
         }
-        if b[0] == c {
-            return o
-        }
-        o++
     }
-    return 0
+    return -1
+}
+
+// 获得文件内容直到下一个指定字节的位置(返回值不包含该位置字符内容)
+func GetBinContentsTilChar(file *os.File, char byte, start int64) ([]byte, int64) {
+    if offset := GetNextCharOffset(file, char, start); offset != -1 {
+        return GetBinContentsByTwoOffsets(file, start, offset), offset
+    }
+    return nil, -1
 }
 
 // 获得文件内容中两个offset之间的内容 [start, end)
-func GetBinContentByTwoOffsets(file *os.File, start int64, end int64) []byte {
+func GetBinContentsByTwoOffsets(file *os.File, start int64, end int64) []byte {
     buffer := make([]byte, end - start)
     if _, err := file.ReadAt(buffer, start); err != nil {
         return nil
diff --git a/geg/os/gfile/gfile_contents.go b/geg/os/gfile/gfile_contents.go
new file mode 100644
index 000000000..ecf913a06
--- /dev/null
+++ b/geg/os/gfile/gfile_contents.go
@@ -0,0 +1,19 @@
+package main
+
+import (
+    "fmt"
+    "gitee.com/johng/gf/g/os/gfile"
+)
+
+func main() {
+    path    := "/tmp/temp"
+    content := `123
+456
+789`
+    gfile.PutContents(path, content)
+    f, err := gfile.Open(path)
+    if err != nil {
+        panic(err)
+    }
+    fmt.Println(gfile.GetBinContentsTilChar(f, '\n', 0))
+}