对txt文件中的字符串长度求和[重复]

Question

我有一个 txt 文件，其名称如下：

Hans
Anna
Vladimir
Michael
Ed
Susan
Janice
Jo

我想打印所有名字长度的总和：

with open(r"C:\people_names.txt", "r") as name_file:
    sum_names = (len(x) for x in name_file)
print(sum(sum_names))

问题是每个名字后面都有“\n”，算作字母，而姓氏没有“\n”，

这就是为什么我不能len(x)-1

如果您有任何计算方法的建议将很高兴:)

Answer 1

如果文件太大，我不建议使用readlines()。
您可以使用rstrip 删除每行末尾的\n。

with open(r"C:\people_names.txt", "r") as name_file:
    sum_names = [len(x.rstrip('\n')) for x in name_file]
print(sum(sum_names))

Answer 2

with open(r"C:\people_names.txt", "r") as name_file:
    data = name_file.read()  

total_characters = len(data) - data.count("\n")
print(total_characters)

Answer 3

从文件中读取每一行：

with open(r"C:\people_names.txt", "r") as name_file:
    name_file = name_file.readlines()
sum_names = [len(x.strip()) for x in name_file]
print(sum(sum_names))

name_file.readlines() 返回行列表，这些行由换行符标识。这将解决您的问题。 另一种解决方案是使用splitlines()：

with open(r"hello.txt", "r") as name_file:
    name_file = name_file.read().splitlines()
sum_names = [len(x) for x in name_file]
print(sum(sum_names))