Usage : 
        python UsbKeyboardHacker.py data.pcap
Tips : 
        To use this python script , you must install the tshark first.
        You can use `sudo apt-get install tshark` to install it
        And the pillow lib is also required
        You can install it by typing `sudo pip install pillow`
Author : 
        WangYihang <wangyihanger@gmail.com>
        If you have any questions , please contact me by email.
        Thank you for using.

1. Step1 , Get data


2. Step2 , decode


3. Step3 , show the image file