的Python更改文本文件的格式爲新的格式

-4

3  Bham Hoover - Vestiva 
123 234 1 456 876 1 876 745 1 
0 
4  Bham Vestiva - Greensprings 
235 876 1 647 987 1 098 765 1 234 546 1 
0

這正好爲幾個行，但我想這種格式轉換爲如下：

Event 
Disconnect branch from bus 123 to 234 circuit 1 
Disconnect branch from bus 456 to 876 circuit 1 
Disconnect branch from bus 876 to 745 circuit 1 
end 
Event 
Disconnect branch from bus 235 to 876 circuit 1 
Disconnect branch from bus 647 to 987 circuit 1 
Disconnect branch from bus 098 to 765 circuit 1 
Disconnect branch from bus 234 to 546 circuit 1 
end

來源

2012-06-01 user1431707

而你的問題是什麼？ –

請用一個問題來更新你的問題。 – jgritty

Fyi，StackOverflow不是'plz給我發送代碼'的網站。下一次向我們展示您嘗試的是什麼，而不是讓我們爲您編寫代碼。 – ThiefMaster

from itertools import islice 
with open('file.txt', 'r') as f: 
    # iterate over every 3rd line, starting with the 2nd 
    for line in islice(f, 1, None, 3): 
     parts = line.split() 
     print 'Event' 
     # iterate over 3-element chunks 
     for x in zip(*(iter(parts),) * 3): 
      print 'Disconnect branch from bus %s to %s circuit %s' % x 
     print 'end'

輸出：

Event 
Disconnect branch from bus 123 to 234 circuit 1 
Disconnect branch from bus 456 to 876 circuit 1 
Disconnect branch from bus 876 to 745 circuit 1 
end 
Event 
Disconnect branch from bus 235 to 876 circuit 1 
Disconnect branch from bus 647 to 987 circuit 1 
Disconnect branch from bus 098 to 765 circuit 1 
Disconnect branch from bus 234 to 546 circuit 1 
end

積分的分塊碼去Iteration over list slices

來源

2012-06-01 23:25:24 ThiefMaster

在這裏大量使用評論。 – Droogans

-1

我不確定你的真正需要。但是如果你想輸出你的文件，就像你顯示的那樣，你可以在你的文本中插入一個分隔符，然後使用re模塊解析然後按照你需要的順序獲取數據！

來源

2012-06-01 23:17:00 StarkBR

由於數據行包含任意數量的數據三元組，因此正則表達式對於此格式並不是一個好選擇。有更好的方法來解析這個 - 看到休的答案或我的。 – ThiefMaster

絕對可以看到ThiefMaster的回答，特別是使用一個文件對象作爲生成器，並用'islice'（我每天在這裏學到新的東西）滑雪線。 – Droogans

with open("data.txt") as inf: 
    for head,data,tail in zip(inf,inf,inf): 
     print("Event") 
     items = iter(data.split()) 
     for bus1,bus2,cct in zip(items,items,items): 
      print("Disconnect branch from bus {} to {} circuit {}".format(bus1,bus2,cct)) 
     print("end")

結果

Event 
Disconnect branch from bus 123 to 234 circuit 1 
Disconnect branch from bus 456 to 876 circuit 1 
Disconnect branch from bus 876 to 745 circuit 1 
end 
Event 
Disconnect branch from bus 235 to 876 circuit 1 
Disconnect branch from bus 647 to 987 circuit 1 
Disconnect branch from bus 098 to 765 circuit 1 
Disconnect branch from bus 234 to 546 circuit 1 
end

來源

2012-06-01 23:22:29

的Python更改文本文件的格式爲新的格式

回答

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