数据处理数据格式转化[map/filter/reduce/re.sub/x.strftime/pd.to_datetime/sort_values/drop_duplicates/apply(str)
导包importnumpyasnpimportpandasaspdfrompandasimportSeries,DataFrameimportmatplotlib.pyplotasplt%matplotlibinline创建数据集datas={'name':['张a亦','张亦','李尔','李尔','赵兆','龚珍c','熊时','王武','王一','王二','李四','赵武','孙泉'],'p