python将输出打印两次

Question

我的python代码将输出打印两次。

我无法正确打印输出。请帮助。预先感谢

fname = input("Enter file name: ")
        if len(fname) < 1 : 
           fname = "mbox-short.txt"

        fh = open(fname)
        count = 0

        for ln in fh:
            if ln.startswith("From"):
               count = count + 1
               b2 = ln.split()
               print(b2[1])

        print("There were", count, "lines in the file with From as the first word")

Answer 1

在for循环中使用print（b [0]）

Answer 2

我在pycharm上执行了您的代码，文件为 abc.txt ，内容为：

From dhfgdfjdfvdf dfd f
from bjddfgdhgfkdgfkd
dhdgfdhfgj
dfhdgfgdhfg
From hgfdfgdgsdguig

得到的结果是

Enter file name: 
dhfgdfjdfvdf
hgfdfgdgsdguig
There were 2 lines in the file with From as the first word

因此根据代码，没有两个最终输出，而我假设

print(b2[1])

是故意的。