测试代码 zzvips.txt
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1:www.zzvips.com 2:www.zzvips.com 3:www.zzvips.com 4:www.zzvips.com 5:www.zzvips.com 6:www.zzvips.com 7:www.zzvips.com 8:www.zzvips.com 9:www.zzvips.com 10:www.zzvips.com 11:www.zzvips.com 12:www.zzvips.com 13:www.zzvips.com 14:www.zzvips.com 15:www.zzvips.com 16:www.zzvips.com |
python代码
代码一
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# -*- coding: utf-8 -*- ''' python读取文件,将文件中的空白行去掉 ''' def delblankline(infile, outfile): infopen = open (infile, 'r' ,encoding = "utf-8" ) outfopen = open (outfile, 'w' ,encoding = "utf-8" ) lines = infopen.readlines() for line in lines: if line.split(): outfopen.writelines(line) else : outfopen.writelines("") infopen.close() outfopen.close() delblankline( "zzvips.txt" , "o.txt" ) |
代码二
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# -*- coding: utf-8 -*- ''' python读取文件,将文件中的空白行去掉 ''' def delblankline(infile, outfile): infopen = open (infile, 'r' ,encoding = "utf-8" ) outfopen = open (outfile, 'w' ,encoding = "utf-8" ) lines = infopen.readlines() for line in lines: line = line.strip() if len (line)! = 0 : outfopen.writelines(line) outfopen.write( '\n' ) infopen.close() outfopen.close() delblankline( "zzvips.txt" , "o2.txt" ) |
代码三:python2
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#coding:utf-8 import sys def delete(filepath): f = open (filepath, 'a+' ) fnew = open (filepath + '_new.txt' , 'wb' ) #将结果存入新的文本中 for line in f.readlines(): #对每一行先删除空格,\n等无用的字符,再检查此行是否长度为0 data = line.strip() if len (data)! = 0 : fnew.write(data) fnew.write( '\n' ) f.close() fnew.close() if __name__ = = '__main__' : if len (sys.argv) = = 1 : print u "必须输入文件路径,最好不要使用中文路径" else : delete(sys.argv[ 1 ]) |
代码解析:
1. Python split()通过指定分隔符对字符串进行切片,返回分割后的字符串列表。str.split()分隔符默认为空格。
2. 函数 writelines(list)
函数writelines可以将list写入到文件中,但是不会在list每个元素后加换行符,所以如果想每行都有换行符的话需要自己再加上。
例如:for line in lines:
outfopen.writelines(line+"\n")
3. .readlines() 自动将文件内容分析成一个行的列表,该列表可以由 Python 的 for ... in ... 结构进行处理。
原文链接:http://blog.csdn.net/qq_32113189/article/details/79578490