在python中每x行反转文本块

Question

我确定这是一个简单的 readlines 解决方案。我花了一些时间试图解决它但没有成功。

我有一段文字如下：

"This is the text 1"
0.0 2.0 2.0 2.0    
0.0 0.0 4.0 0.0    
0.0 0.0 0.0 0.0    
0.0 0.0 0.0 0.0    
0.0 0.0 0.0 0.0    
0.0 0.0 0.0 0.0
"This is the text 2"
0.0 5.0 3.0 5.0    
0.0 0.0 6.0 0.0    
0.0 0.0 0.0 0.0    
0.0 0.0 0.0 0.0    
0.0 0.0 0.0 0.0    
0.0 0.0 0.0 0.0

我正在努力将其更改为：

"This is the text 1"
0.0 0.0 0.0 0.0    
0.0 0.0 0.0 0.0    
0.0 0.0 0.0 0.0    
0.0 0.0 0.0 0.0    
0.0 0.0 4.0 0.0    
0.0 2.0 2.0 2.0
"This is the text 2"
0.0 0.0 0.0 0.0    
0.0 0.0 0.0 0.0    
0.0 0.0 0.0 0.0    
0.0 0.0 0.0 0.0    
0.0 0.0 6.0 0.0    
0.0 5.0 3.0 5.0

非常感谢任何帮助。 谢谢

代码：

f = open("file.txt", "rb")
    s = f.readlines()
    f.close()
    f = open("newtext.txt", "wb")
    f.writelines(s[::-1])
    f.close()

返回整个 txt 文件倒置。

Answer 1

这是在文本之间的行数始终保持一致的假设下工作的。

# Open file, split on newlines into a list
with open('file.txt') as f:
    data = f.read().splitlines()
# Break list into multiple lists 7 items long
# this covers the text and the 6 sets of numbers that follow
newlist = [data[i:i + 7] for i in range(0, len(data), 7)]

output = []
# Append the text, then iterate backwards across each list, stopping short of the text
for item in newlist:
    output.append(item[0])
    for x in item[:0:-1]:
        output.append(x)
# output to text file, adding a newline character at the end of each row
with open('newtext.txt', 'w') as f:
    for item in output:
        f.write('{}\n'.format(item))