diff --git a/README.md b/README.md
index 7f33d7de4..0a98c18b0 100755
--- a/README.md
+++ b/README.md
@@ -1,70 +1,51 @@
 # sl100
 
+\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* 编译
+\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* source
+build/envsetup.sh（这里如果出现报错，是ubuntu系统bash脚本的问题，环境安装好了就可以。CP文件
+会消耗一定时间） lunch 2 （后板）， 前板 lunch 1 make menuconfig
+(save就好) make -j10
 
-***************** 编译 *****************
-source build/envsetup.sh（这里如果出现报错，是ubuntu系统bash脚本的问题，环境安装好了就可以。CP文件 会消耗一定时间）
-lunch 2 （后板）， 前板 lunch 1
-make menuconfig (save就好)
-make -j10
+\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* Reduce SDK
+\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* 以下目录从 /home/share/sl100拉取 dl
+tools prebuilt toolchain lichee: xr806/tools melis-v3.0/toolchain
+melis-v3.0/tools brandy-2.0/tools
 
-***************** Reduce SDK *****************
-以下目录从 /home/share/sl100拉取
-dl
-tools
-prebuilt
-toolchain
-lichee:
-xr806/tools
-melis-v3.0/toolchain
-melis-v3.0/tools
-brandy-2.0/tools
+\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*以下为已删除项目不相关文件start\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*
+cd lichee/linux-4.9/arch rm -rf alpha arc avr32 blackfin c6x cris frv
+h8300 hexagon ia64 m32r m68k metag microblaze mips mn10300 nios2
+openrisc parisc powerpc s390 score sparc unicore32 x86 xtensa cd -
 
-*****************以下为已删除项目不相关文件start*****************
-cd lichee/linux-4.9/arch
-rm -rf alpha arc avr32 blackfin c6x cris frv h8300 hexagon ia64 m32r m68k metag microblaze mips mn10300 nios2 openrisc parisc powerpc s390 score sparc unicore32 x86 xtensa
-cd -
-
-cd lichee/linux-4.9/drivers/net/wireless
-rm -rf admtek ath bcmdhd cisco intel mac80211_hwsim.h marvell ralink ealtek rsi rtl8189es rtl8723bs_vq0 rtl8723ds rtl8821cs ssv6155_jixian xr819 xr829 aic8800 atmel broadcom esp32 intersil mediatek rtl8188fu rtl8189fs rtl8723cs rtl8733bs rtl8822cs ssv6158 ti xr819s zydas xr819 xr829 xr819s realtek
-cd -
+cd lichee/linux-4.9/drivers/net/wireless rm -rf admtek ath bcmdhd cisco
+intel mac80211_hwsim.h marvell ralink ealtek rsi rtl8189es rtl8723bs_vq0
+rtl8723ds rtl8821cs ssv6155_jixian xr819 xr829 aic8800 atmel broadcom
+esp32 intersil mediatek rtl8188fu rtl8189fs rtl8723cs rtl8733bs
+rtl8822cs ssv6158 ti xr819s zydas xr819 xr829 xr819s realtek cd -
 
 rm lichee/linux-4.9/drivers/net/ethernet
 
-rm -rf  lichee/linux-4.9/drivers/atm
-rm -rf  package/gui/littlevgl-8/lv_86_boxes
-rm -rf  package/gui/littlevgl-8/lvgl/demos/
-rm -rf  package/gui/littlevgl-8/lvgl/examples
-rm -rf  package/network
-rm -rf  package/luci
-
-find . -iname  *.doc | xargs rm -rf
-find . -iname  *.pdf | xargs rm -rf
-find . -iname  *.exe | xargs rm -rf
-find . -iname  *.psd | xargs rm -rf
-
-rm -rf package/allwinner/yolov3/src/yolov3_rgb.nb
-rm -rf package/allwinner/resnet50_demo
-rm -rf external/eyesee-mpp/dragonboard
-rm -rf package/allwinner/smartlinkd
-rm -rf package/utils/rftest
-
-rm -rf external/eyesee-mpp/external/civetweb 
-rm -rf external/eyesee-mpp/middleware/sun8iw21/sample
-rm -rf package/security
-
-
-*****************以下删除一些无关配置的目录 *****************
-
-vim lichee/linux-4.9/drivers/ras/Kconfig 
-vim lichee/linux-4.9/drivers/net/wireless/Kconfig
-vim lichee/linux-4.9/drivers/net/Kconfig
-
-***************** Reduce SDK *****************
-
-
+rm -rf lichee/linux-4.9/drivers/atm rm -rf
+package/gui/littlevgl-8/lv_86_boxes rm -rf
+package/gui/littlevgl-8/lvgl/demos/ rm -rf
+package/gui/littlevgl-8/lvgl/examples rm -rf package/network rm -rf
+package/luci
 
+find . -iname *.doc \| xargs rm -rf find . -iname *.pdf \| xargs rm -rf
+find . -iname *.exe \| xargs rm -rf find . -iname *.psd \| xargs rm -rf
 
+rm -rf package/allwinner/yolov3/src/yolov3_rgb.nb rm -rf
+package/allwinner/resnet50_demo rm -rf external/eyesee-mpp/dragonboard
+rm -rf package/allwinner/smartlinkd rm -rf package/utils/rftest
 
+rm -rf external/eyesee-mpp/external/civetweb rm -rf
+external/eyesee-mpp/middleware/sun8iw21/sample rm -rf package/security
 
+\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*以下删除一些无关配置的目录
+\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*
 
+vim lichee/linux-4.9/drivers/ras/Kconfig vim
+lichee/linux-4.9/drivers/net/wireless/Kconfig vim
+lichee/linux-4.9/drivers/net/Kconfig
 
+\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* Reduce SDK
+\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*