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

Python读取一个文本文件，删除文本文件的空行代码如下：

def delblankline(infile, outfile):
""" Delete blanklines of infile """
infp = open(infile, "r")o 
utfp = 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

楼下的那个答案太复杂了吧。我刚验证的，很简短的代码：
#!/usr/bin/env python
# Filename: tripe_test.py
f_t=file('no_space.txt','w')
f=file('T_read.txt')
try:
while True:
line=f.readline()
if len(line)==0:
break
if line.count('\n')==len(line):
continue
f_t.write(line)

finally:
f.close()
f_t.close()

其中
T_read.txt文件的内容是：
123 344 456

234 566 77898
123 546 788

运行程序后的内容写到文件
no_space.txt中，是去掉了空白行的。

Answer 3

# coding=utf-8
file = open("blank.txt","r")
file2 = open("noblank.txt","w")
while 1:
text = file.readline()
if( text == '' ):
print "结束"
break
elif( text == '\n'):
print "换行符"
else:
file2.write( text )
print text
file.close()
file2.close()
raw_input()

Answer 4

def delblankline(infile, outfile):
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()

if __name__ == "__main__":
delblankline("1.dat","2.dat")