当文件里读取出来 \ufeff
a=r'D:\huohu\download\shenma\foshanouyananke\2019-03-11=2019-03-11~#12019-03-11_2019-03-11CpcAll.csv'
f = open(a,encoding='utf-8-sig') #一定要在这里加encoding='utf-8-sig'
df = pd.read_csv(f, header=0,engine='python',encoding='utf8') # 上传数据
print(df[:3])
