qhnw.net
当前位置:首页 >> python中rstrip的用法 >>

python中rstrip的用法

你好:那你就按行读取;然后按行写入;

1,rstrip函数返回字符串副本,该副本是从字符串最右边删除了参数指定字符后的字符串,不带参数进去则是去除最右边的空格.2,而strip方法和rstrip的功能一样,不同之处是它是同时去除左右两边指定的字符.

s.lstrip("cwsd.") 删除在字符串左边出现的'c','w','s','d','.'字符 s.rstrip("cnwdi.") 删除在字符串右边出现的'c','n','w','d','i','.'字符

_txt = "abcd 1234" _txt2 = _txt.replace("\x20", "")

string.rstrip(s[, chars]) Return a copy of the string with trailing characters removed. If chars is omitted or None, whitespace characters are removed. If given and not None, chars must be a string; the characters in the string will be stripped from the end

python中有一个读写csv文件的包,直接import csv即可.利用这个python包可以很方便对csv文件进行操作,一些简单的用法如下.读文件csv_reader = csv.reader(open('data.file', encoding='utf-8')) for row in csv_reader:print(row)

和普通文件一样读取.csv中文件数据项有逗号划分开.infile = open("data.csv", 'r') for line in infile: data = line.rstrip().split(',') print(data)

我是来看评论的

说明:python按行读取文件直接使用for in open方式即可,去除'\n',可以使用两种方法,一种是替换函数:replace('\n','')把换行符替换成空;一种是去除空白字符函数:rstrip('\n')就是把字符串末尾指定字符删除,这里删除换行符('\n').代码

line.startswith(" = line; ws = set() for line in handle; .split()[5] print(each_hour; ); counts.get(words2[0], 0) counts[words2[0]] , = cou w = counts : words; )[0] .add(w) .rstrip() From : : :"+ 1 for each_hour sorted(words);= line; line in cou = if ws.split(";"= {} words

so1008.com | hyfm.net | acpcw.com | lpfk.net | tuchengsm.com | 网站首页 | 网站地图
All rights reserved Powered by www.qhnw.net
copyright ©right 2010-2021。
内容来自网络,如有侵犯请联系客服。zhit325@qq.com