20200306
iconv -c -f gb18030 -t UTF-8 nCov_10k_test.csv > a iconv -c -f GB2312 -t UTF-8 nCoV_900k_train.unlabled.csv > a && mv a nCoV_900k_train.unlabled.csv python extrac_wb.py nCov_10k_test.csv | tail -n+2 >> covid_wb python extrac_wb.py nCoV_100k_train.labled.csv | tail -n+2 >> covid_wb python extrac_wb.py nCoV_900k_train.unlabled.csv | tail -n+2 >> covid_wb