diff --git "a/01_MicroPython-ESP32\345\233\272\344\273\266\347\203\247\345\275\225/MicroPython-ESP32\345\233\272\344\273\266\347\203\247\345\275\225.md" "b/01_MicroPython-ESP32\345\233\272\344\273\266\347\203\247\345\275\225/MicroPython-ESP32\345\233\272\344\273\266\347\203\247\345\275\225.md"
index d4e6718..b7ad0e7 100755
--- "a/01_MicroPython-ESP32\345\233\272\344\273\266\347\203\247\345\275\225/MicroPython-ESP32\345\233\272\344\273\266\347\203\247\345\275\225.md"
+++ "b/01_MicroPython-ESP32\345\233\272\344\273\266\347\203\247\345\275\225/MicroPython-ESP32\345\233\272\344\273\266\347\203\247\345\275\225.md"
@@ -56,7 +56,8 @@ sudo pip install esptool --upgrade
 将ESP32开发板与PC相连,  确定ESP32开发板在Ubuntu下分配的端口号 `ttyUSB?` 
 
 ```bash
-➜  ~ ls -l /dev/ttyUSB* 
+~~~➜  ~ ls -l /dev/ttyUSB* ~~~
+ls -l /dev/ttyUSB*
 crw-rw---- 1 root dialout 188, 0 8月  10 10:42 /dev/ttyUSB0
 ```
 
@@ -70,7 +71,8 @@ sudo esptool.py --chip esp32 --port /dev/ttyUSB0 write_flash -z  0x1000 esp32-xx
 固件烧录日志
 
 ```bash
-fange@cr ~/D/E/1/固件> sudo esptool.py --chip esp32 --port /dev/ttyUSB1 write_flash -z  0x1000 esp32-20180411-v1.9.3-534-g59dda710.bin 
+~~~fange@cr ~/D/E/1/固件> sudo esptool.py --chip esp32 --port /dev/ttyUSB1 write_flash -z  0x1000 esp32-20180411-v1.9.3-534-g59dda710.bin~~~
+sudo esptool.py --chip esp32 --port /dev/ttyUSB1 write_flash -z  0x1000 esp32-20180411-v1.9.3-534-g59dda710.bin
 esptool.py v2.3.1
 Connecting........_
 Chip is ESP32D0WDQ6 (revision 1)