打印函数仅显示文件的第一行。

Question

我只想逐行从文件中读取，并将每一行附加到数组中。我以前做过，没有任何问题，我不知道为什么这一次它不工作！打印函数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)

另外，以下是文件内容的子集：

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。

for line in my_keywordfile.readlines():
    for keyword in line.strip("[]").strip("'").split(","):

Answer 2

您只调用readline()一次，因此只打印一行。

Answer 3

在for循环中，要调用文件对象上的.readlines()。不是读行()。readline()只返回第一行，readline()返回可以迭代的行列表。

从医生那里：

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.

我还建议不要清理for循环声明中的行。它认为，如果在for循环中这样做，读起来会容易一些。

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