如何遍历文件行并将它们添加到打印列表中，遍历

Question

我试图将文本文件中的变量放在两个字符串之间。 例如，我有一个这样的文本文件：

123
456
789

我想遍历每一行并将它的 append 转换为两个字符串：

'The number,' 123 ' appears in the list'
'The number,' 456 ' appears in the list'
'The number,' 789 ' appears in the list'

a = str('This number')
b = str(' appears in the list')
file = open(r"My\File\Path\Example.txt", "r")
lines =len(file.readline())
for lines in file:
    print(a, print(file.readline(), b))

Answer 1

几乎没问题，除了所提供代码的最后一行。 应该是这样的：

start_str = "The number,"
end_str = "appears in the list"

with open('example.txt', 'rt') as file:  # Open the text file in read-text mode
    for line in file.readlines():  # Iterate through each line of the text file
        print(start_str, line.strip(), end_str)  # Print formatted output. `.strip()` used to remove all leading and trailing whitespaces.

Answer 2

with open('./Example.txt') as f:
  for l in f:
    print('The number', l.replace('\n',''), 'appears in the list')