python crawler for url like https://cn.etherscan.com/token/0xf4cB3db185D11e1cD3eEFDe5FFA5dDF4976c3B2e
use python crawl.py [token]
or scrapy crawl escan -a url=[token]
such as python crawl.py 0xf4cB3db185D11e1cD3eEFDe5FFA5dDF4976c3B2e
result output to .csv and mysql database described in pipelines.py
input a xlsx
which consists of 8 columns, the 5th 6th 7th 8th column is
from to quantitys method
example: test.xlsx
output info to the 9th column