如何对文本文件执行数据清理？

Question

我有一个包含很多行的文本文件，包括单词和数字，这是一个示例：

2021-12-06 05:07:09.266 INFO: Additional  ID 1638301749791
2021-12-06 05:07:09.266 INFO: Found 
2021-12-06 05:07:09.267 INFO: ObjectStatus-ok factor 1163 factor five and six computed as it was before best weight ID 1638301749796
2021-12-06 05:07:09.267 INFO: disabled; computing power weight factor factor 19025.
2021-12-06 05:07:10.041 INFO: Wrote big factor 0.3568357342, Classificationfactortype-fail
2021-12-06 05:07:10.042 DEBUG: Duiu.0.0.2588650814
2021-12-06 05:07:10.743 INFO: Wrote .3254806495

我的问题是如何保留 具有特定单词“Classificationfactortype-fail”和“ObjectStatus-ok”的行，并删除所有其他行？我想将新的文本文件保存在目录中。

这是我写的代码：

ans = []

with open('test. txt') as rf:
    for line in rf:
        line = line.strip()
        if "Classificationfactortype-fail" in line or "ObjectStatus-ok" in line:
          ans.append(line)

with open('extracted_data.txt', 'w') as wf:
    for line in ans:
        wf.write(line)

Answer 1

如果每一行都以时间码开头，那么 str.startswith() 将不起作用。

你可以这样做：

if "Classificationfactortype-fail" in line or "ObjectStatus-ok" in line:
   ans.append(line)

在你的第一个循环中。