Python代码乱七八糟

你好，谢谢你抽出时间。 最近我一直在尝试通过 Zed A.Shaw的《学习python的艰难之路》

在其中一个练习中，我遇到了一个小问题，但这是一个令人烦恼的问题

代码如下所示：

from sys import argv
script, input_file = argv

def print_all(f):
    print f.read()

def rewind(f):
    f.seek(0)

def print_a_line(line_count, f):
    print line_count, f.readline()

current_file = open(input_file)
print "First let's print the whole file:\n"
print_all(current_file)
print "now let's rewind it kind off like a tape."
rewind(current_file)
print "let's print three lines."
current_line = 1 
print_a_line(current_line, current_file)
current_line += 1
print_a_line(current_file, current_file)
current_line += 1
print_a_line(current_line, current_file)

First let's print the whole file:

To all the people out there.
I say I don't like my hair.
I need to shave it off.

Now let's rewind it kind off like a tape.
let's print three lines.
1 To all the people out there.

<open file 'test.txt', mode 'r' at 0x01D16230> I say I don't like my hair.

3 I need to shave it off.

结果是：

from sys import argv
script, input_file = argv

def print_all(f):
    print f.read()

def rewind(f):
    f.seek(0)

def print_a_line(line_count, f):
    print line_count, f.readline()

current_file = open(input_file)
print "First let's print the whole file:\n"
print_all(current_file)
print "now let's rewind it kind off like a tape."
rewind(current_file)
print "let's print three lines."
current_line = 1 
print_a_line(current_line, current_file)
current_line += 1
print_a_line(current_file, current_file)
current_line += 1
print_a_line(current_line, current_file)

First let's print the whole file:

To all the people out there.
I say I don't like my hair.
I need to shave it off.

Now let's rewind it kind off like a tape.
let's print three lines.
1 To all the people out there.

<open file 'test.txt', mode 'r' at 0x01D16230> I say I don't like my hair.

3 I need to shave it off.

首先，让我们打印整个文件：
给所有的人。
我说我不喜欢我的头发。
我需要把它剃掉。
现在让我们像磁带一样倒带。
我们打印三行。
向所有在场的人致意。
我说我不喜欢我的头发。
我需要把它刮掉。

除了

，一切都很好，在我过于简单的头脑中，它似乎是随机的

为什么会出现这种情况？

注意：我在Windows8.1上使用记事本+

print_a_line(current_file, current_file)

这应该是

print_a_line(current_line, current_file)

您看到的输出是由于

print line_count

---

其中line\u count实际上是指先前打开以进行读取的文件流。

您得到的是

current\u file

，而不是

current\u line

Wow。。谢谢你，我发誓我已经看过代码好几次了，我不知道我是怎么漏掉的。