diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 0000000..729ecff
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,16 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Launch Package",
+            "type": "go",
+            "request": "launch",
+            "mode": "debug",
+            "program": "${workspaceFolder}",
+            "args":["-i", "Test.md", "-o", "Tmp.md"]
+        }
+    ]
+}
\ No newline at end of file
diff --git a/README.md b/README.md
index b7c4da5..2a156a8 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,3 @@
 # SpaceMarkdown
 
-在 Markdown 文件的中英文之间插入空格。
\ No newline at end of file
+在 Markdown 文件的中英文之间插入空格。
diff --git a/SpaceMarkdown.go b/SpaceMarkdown.go
new file mode 100644
index 0000000..fc1707d
--- /dev/null
+++ b/SpaceMarkdown.go
@@ -0,0 +1,107 @@
+package main
+
+import (
+	"bufio"
+	"flag"
+	"fmt"
+	"log"
+	"os"
+	"regexp"
+)
+
+func fileExists(file string) bool {
+	_, err := os.Stat(file)
+	if err == nil {
+		return true
+	}
+	if os.IsNotExist(err) {
+		return false
+	}
+	return false
+}
+
+func fileOpen(file string, canCreate bool) (*os.File, bool) {
+	if fileExists(file) {
+		f, e := os.OpenFile(file, os.O_RDWR, 0666)
+		if nil != e {
+			return nil, false
+		}
+		return f, true
+	} else if canCreate {
+		f, e := os.OpenFile(file, os.O_RDWR|os.O_CREATE, 0666)
+		if nil != e {
+			return nil, false
+		}
+		return f, true
+	} else {
+		return nil, false
+	}
+}
+
+func fileWrite(file *os.File, txt []string) {
+	for i := 0; i < len(txt); i++ {
+		file.WriteString(txt[i])
+	}
+	file.Sync()
+}
+
+func fileClose(file *os.File) {
+	file.Close()
+}
+
+func insertSpace2Line(line string) string {
+	reg1 := regexp.MustCompile("([A-Za-z0-9?/,*])([\u4e00-\u9fa5])")
+	reg2 := regexp.MustCompile("([\u4e00-\u9fa5])([A-Za-z0-9?/,*])")
+	line = reg2.ReplaceAllString(reg1.ReplaceAllString(line, "$1 $2"), "$1 $2")
+	return line
+}
+
+func SpacePipeline(file *os.File) []string {
+	var txt []string
+	file.Seek(0, os.SEEK_SET)
+	reader := bufio.NewReader(file)
+	for {
+		line, e := reader.ReadString('\n')
+		if nil != e {
+			break
+		}
+		line = insertSpace2Line(line)
+		txt = append(txt, line)
+	}
+	return txt
+}
+
+func usage() {
+	fmt.Println("SpaceMarkdown")
+	fmt.Println("version 0.1.0")
+	flag.PrintDefaults()
+}
+
+func main() {
+	var ifile, ofile string
+	var ifd, ofd *os.File
+	var ret bool
+
+	flag.StringVar(&ifile, "i", "", "Input markdown file")
+	flag.StringVar(&ofile, "o", "", "Output markdown file")
+
+	flag.Usage = usage
+	flag.Parse()
+
+	if "" == ifile || "" == ofile {
+		usage()
+		return
+	}
+	ifd, ret = fileOpen(ifile, false)
+	if !ret {
+		log.Println("Can not open " + ifile)
+	}
+	ofd, ret = fileOpen(ofile, true)
+	if !ret {
+		log.Println("Can not open " + ofile)
+	}
+
+	fileWrite(ofd, SpacePipeline(ifd))
+	fileClose(ifd)
+	fileClose(ofd)
+}
diff --git a/Test.md b/Test.md
new file mode 100644
index 0000000..f195536
--- /dev/null
+++ b/Test.md
@@ -0,0 +1,5 @@
+# Ldconfig 命令
+
+ldconfig命令的用途主要是在默认搜寻目录/lib和/usr/lib以及动态库配置文件/etc/ld.so.conf内所列的目录下，搜索出可共享的动态链接库（格式如lib*.so*）,进而创建出动态装入程序(ld.so)所需的连接和缓存文件。缓存文件默认为/etc/ld.so.cache，此文件保存已排好序的动态链接库名字列表，为了让动态链接库为系统所共享，需运行动态链接库的管理命令ldconfig，此执行程序存放在/sbin目录下。
+
+ldconfig通常在系统启动时运行，而当用户安装了一个新的动态链接库时，就需要手工运行这个命令。