Question

我只是想从文件中逐行读取并将每行附加到数组中。我以前做过没有任何问题，我不知道为什么这次它不起作用！打印功能只显示文件的第一行!! 这是我的代码：

keyword_array = []    
with open('local directory\\C0577785c.txt') as my_keywordfile:
        for keyword in my_keywordfile.readline().strip("[]").strip("'").split(","):
         keyword_array.append( keyword.strip().strip("'").lower())
         print(keyword_array)

此外，这是文件内容的子集：

C0001396    adam attack stokes
C0001396    Adam Stokes Attacks
C0001396    Adam-Stokes Attacks
C0001396    adam-stokes syndrome
C0001396    adams attack stoke
C0001396    adams stoke syndrome
C0001396    adams stokes attack
C0001396    ADAMS STOKES SYNDROME
C0001396    Adams-Stokes
C0001396    Adams-Stokes Syndrome
C0001396    Adams-Stokes; attack
C0001396    attack; Adams-Stokes
C0001396    attack; Stokes-Adams
C0001396    Attacks, Adam-Stokes
C0001396    Attacks, Stokes-Adams
C0001396    morgagni's disease
C0001396    Morgagni-Adam's Stokes syndrome
C0001396    Morgagni-Stokes-Adams

谢谢，

Answer 1

使用嵌套循环读取my_keywordfile的行。

nodeSize

Answer 2

您只调用一次readline（），因此只打印一行。

Answer 3

在for循环中，您希望在文件对象上调用.readlines（）。不是readline（）。 readline（）只返回第一行，readlines（）返回一个可以迭代的行列表。

来自文档：

readlines(...) method of _io.TextIOWrapper instance
    Return a list of lines from the stream.

    hint can be specified to control the number of lines read: no more
    lines will be read if the total size (in bytes/characters) of all
    lines so far exceeds hint.

我还建议不要在for循环声明中清理行。如果你在for循环中这样做，它认为它看起来更容易。

# ....
with open('myfile.txt', 'r') as my_file:
    for raw_line in my_file.readlines():
        cleaned_data = raw_line.lower().strip("'")
        #....

打印功能仅显示文件的第一行

3 个答案: