1 数据预处理 dict_contraction = {"Trump's" : 'trump is',"'cause": 'because',',cause': 'because',';cause': 'because',"ain't": 'am not','ain,t': 'am not', 'ain;t': 'am not','ain´t': 'am not','ain’t': 'am not',"aren't": 'are not', 'aren,t': 'are ...