for safety image v1.0 #14

app/lea/File.go

@@ -4,6 +4,7 @@ import (
 	"strings"
 	"path/filepath"
 	"os"
+	"io"
 )
 
 // 分离文件名与扩展名(包含.)
@@ -62,4 +63,18 @@ func ListDir(dir string) []string {
 	}
 	names, _ := f.Readdirnames(0)
 	return names
+}
+
+func CopyFile(srcName, dstName string) (written int64, err error) {
+	src, err := os.Open(srcName)
+	if err != nil {
+		return
+	}
+	defer src.Close()
+	dst, err := os.OpenFile(dstName, os.O_WRONLY|os.O_CREATE, 0644)
+	if err != nil {
+		return
+	}
+	defer dst.Close()
+	return io.Copy(dst, src)
 }