Question

python 读取文本文件 删除里边的空行

123 344 456
234 566 77898
123 546 788
变为
123 344 456
234 566 77898
123 546 788

python 2.7
如果去掉里边的空行
谢谢

Answer 1

def delblankline(infile, outfile):
""" Delete blanklines of infile """
infp = open(infile, "r")
outfp = open(outfile, "w")
lines = infp.readlines()
for li in lines:
if li.split():
outfp.writelines(li)
infp.close()
outfp.close()

#调用示例
if __name__ == "__main__":
delblankline("1.txt","2.txt")

Answer 2

正则表达式替换所有空行（包括空格行）为空
import re
re.sub(r"\n[\s| ]*\n", '', open('d:/test.txt').read())

追问

根据你的思路修改了正则
re.sub(r"\n+", "\n", open('d:/test.txt').read())
替换所有空行 因为没有空格行 就把空行去掉了
谢谢你了

Answer 3

f = open('test.txt', 'r')
lines = [ _l for _l in f if _l.strip() ]
f.close()
f = open('lua.lua', 'w')
f.writelines(lines)
f.close()