import pandas as pd
data=pd.read_excel("D:\\360安全浏览器下载\\1598501711_565704.xlsx")
data["拆1"]=data["etc6mpercar"].map(lambda x:x.split(";")[0])
data["拆2"]=data["etc6mpercar"].map(lambda x:x.split(";")[1])
data["拆3"]=data["etc6mpercar"].map(lambda x:x.split(";")[2])
data.loc[:,["拆1","拆2","拆3"]]
for i in ["拆1","拆2","拆3"]:
data[i+"_日期"]=data[i].map(lambda x:x.split(":")[0])
data[i+"_数值"]=data[i].map(lambda x:x.split(":")[1])
data.loc[:,"拆1_日期":"拆3_数值"]