学习归类

import os
import re
import pathlib

from struct import *
import pandas as pd
import numpy as np

pathdir = "G:" 
files = np.array(os.listdir(pathdir)) 
#file_names = np.char.add(pathdir + "\\", files) 
file_names =[pathdir+"\\"+f for f in files if re.search(\'.csv$\',f)]


df_all["name"] = df_all["name"].str.replace("SH","1_")
df_all["begin"] = df_all["name"].map(str) + df_all["date"].map(str)
df_all = df_all.reset_index(drop=True)

df1 = pd.read_csv(file)
df_all = df_all.append(df1)

f3 = open(file,mode=\'rb\')
buf = f3.read()

        date = unpack("I",buf[b:e-4])
        con = unpack("f",buf[b+4:e])
        fw.write(pack("I",int(df_all.loc[i,"date"])))
        fw.write(pack("f",df_all.loc[i,"content"]))