#TSV为用制表符tab分隔的文本文件。 CSV为用逗号,分隔的文本文件。
#在open的时候加上 newline=”” 这个参数,解决每隔一行会出现空白行问题。

txt>>>csv

(1)Python： 3行代码实现txt文件转csv
代码：
import numpy as np  
import pandas as pd  
txt = np.loadtxt('file.txt')  
txtDF = pd.DataFrame(txt)  
txtDF.to_csv('file.csv',index=False)  

(2)

代码：

import csv
with open('data.csv','w+',encoding="utf8",newline='')as c:
    writer_csv = csv.writer(c,dialect="excel")
    with open("data.txt",'r',encoding='utf8')as f:
        # print(f.readlines())
        for line in f.readlines():
            # print(line)
            line_list = line.strip('\n').split()    #去掉str左右端的空格并以空格分割成list
            print(line_list)
            hbaseRowID_list = line_list[0:3]    #取前三个list中的元素
            # print(hbaseRowID_list)
            # hbaseRowID = line_list[0]+line_list[1]+line_list[2]
            hbaseRowID = "-".join(hbaseRowID_list) #连接list
            # print(hbaseRowID)
            # print(type(line_list))
            # print(line_list)
            line_list[2] = hbaseRowID
            print(line_list[2:])
            writer_csv.writerow(line_list[2:])


txt>>>>>>tsv
代码：
with open('data.tsv','w+',encoding="utf8")as t:
    with open("data.txt",'r',encoding='utf8')as f:
        # print(f.readlines())
        for line in f.readlines():
            # print(line)
            line_list = line.strip('\n').split()    #去掉str左右端的空格并以空格分割成list
            # print(line_list)
            hbaseRowID_list = line_list[0:3]    #取前三个list中的元素
            # print(hbaseRowID_list)
            # hbaseRowID = line_list[0]+line_list[1]+line_list[2]
            hbaseRowID = "-".join(hbaseRowID_list) #连接list
            # print(hbaseRowID)
            # print(type(line_list))
            # print(line_list)
            line_list[2] = hbaseRowID
            tsv_list = line_list[2:]
            tsv_list = '\t'.join(tsv_list)
            print(tsv_list)
            t.write(tsv_list+'\n')