词云：FutureWarning: using a dict on a Series for aggregation is deprecated and will be removed问题
情境再现：
代码：
words_stat=words_df.groupby(by=['segment'])['segment'].agg({"计数":numpy.size})
分析问题：
写法不对，
解决问题：
words_stat=words_df.groupby(by=['segment'])['segment'].agg(numpy.size)
words_stat=words_stat.to_frame()
words_stat.columns=['计数']