2020.04.06
python中字符串拆分与合并——split()、join()、strip()和replace()
transactions_len = len(transactions)
for i in range(transactions_len):
transactions_split = transactions[i].split(',')
transactions_split = [x.split(',') for x in transactions]
transactions_len = len(transactions)
for i in range(transactions_len):
transactions_split = transactions[i].split(',')
transactions_split = [x.split(',') for x in transactions]