如何將每行的第一個單詞讀入文件中的一行

Question

with open("my_file.txt", "r") as f:
     next(f)                         # used to skip the first line in the file
     for line in f:
         words = line.split()        
         if words:
            print(words[0])          

將輸出：

a-1,
b-2,
c-3,

我希望它從文件中輸出/讀取它：

a-1, b-2, c-3,

Answer 1

將單詞保存到列表中，然后將它們加入空格：

with open("my_file.txt", "r") as f:
    first_words = []
    next(f)
    for line in f:
        words = line.split()
        if words:
            first_words.append(words[0])
    
print(' '.join(first_words))

輸出：

a-1, b-2, c-3,