Python - 用連續的數字在特定字符串後面添加一行

Question

我確實遇到了一個小問題，我無法在Python中解決，iam不太熟悉這些代碼命令，這就是其中一個原因我。

例如，當我有一個文本文件是這樣的：

Indicate somename X1 
Random qwerty 
Indicate somename X2 
random azerty 
Indicate somename X3 
random qwertz 
Indicate somename X4 
random asdfg 
Indicate somename X5 

我想提出一個腳本來獲取特定值的背後，是這樣的：

Indicate somename X1 value = 500 
Random qwerty 
Indicate somename X2 value = 500 
random azerty 
Indicate somename X3 value = 500 
random qwertz 
Indicate somename X4 value = 500 
random asdfg 
Indicate somename X5 value = 500 

我已經嘗試過一個這樣的腳本：

def replace_score(file_name, line_num, text): 
f = open(file_name, 'r') 
contents = f.readlines() 
f.close() 

contents[line_num] = text+"\n" 

f = open(file_name, "w") 
contents = "".join(contents) 
f.write(contents) 
f.close() 

replace_score("file_path", 10, "replacing_text") 

但我不能讓它按照我希望的方式工作。

我希望有人能幫助我，

問候，

Answer 1

with open('sample') as fp, open('sample_out', 'w') as fo: 
    for line in fp: 
     if 'Indicate' in line: 
      content = line.strip() + " = 500" 
     else: 
      content = line.strip() 
     fo.write(content + "\n") 

Answer 2

with open('/tmp/content.txt') as f: # where: '/tmp/content.txt' is the path of file 
    for i, line in enumerate(f.readlines()): 
     line = line.strip() 
     if not (i % 2): 
      line += ' value = 500' 
     print line.strip() 
# Output: 
Indicate somename X1 value = 500 
Random qwerty 
Indicate somename X2 value = 500 
random azerty 
Indicate somename X3 value = 500 
random qwertz 
Indicate somename X4 value = 500 
random asdfg 
Indicate somename X5 value = 500 

Answer 3

使用 '重' 模塊

如。

if re.match(r'Indicate somename [A-Z][0-2]', line): 
    modified = line.strip() + ' value = XXX' 

，如果你想需要修改就地輸入文件， 讀項文件中的緩衝區，然後寫回結果。