python - 为什么我第一次运行字计数器与第二次字计数器产生不同的输出？

我正在做一个基本的练习项目。我调用一个简单的Wikipedia页面，然后使用Beautiful Soup将所有内容写入文本文件。然后我计算一下那个单词在该新写入的文本文件中出现的次数

由于某种原因，第一次运行代码时，我得到的编号与第二次运行代码时所得到的编号不同。

我相信第一次运行代码时，“ anime.txt”与第二次运行代码时不同。

问题一定出在我用Beautiful Soup收集所有文本数据的方式上。

请帮忙

from urllib.request import urlopen
from bs4 import BeautifulSoup

f = open("anime.txt", "w", encoding="utf-8")
f.write("")
f.close()

my_url ="https://en.wikipedia.org/wiki/Anime"

uClient = urlopen(my_url)
page_html = uClient.read()
uClient.close()
page_soup = BeautifulSoup(page_html, "html.parser")
p=page_soup.findAll("p")


f = open("anime.txt", "a", encoding="utf-8")

for i in p:

    f.write(i.text)
    f.write("\n\n")

data= open("anime.txt", encoding="utf-8").read()
anime_count = data.count("anime")
Anime_count = data.count("Anime")

print(anime_count,"\n")
print(Anime_count, "\n")

count= anime_count+Anime_count

print("The total number of times the word Anime appears within <p> in the wikipedia page is : ", count)

第一个输出：

动漫数= 14

Anime_count = 97

数量= 111

第二个输出：

动漫数= 23

Anime_count = 139

数= 162

编辑：

我根据前两个注释编辑了代码，当然，现在可以使用：P。
关于正确打开和关闭文件的方式/次数，这看起来更好吗？

from urllib.request import urlopen
from bs4 import BeautifulSoup

my_url ="https://en.wikipedia.org/wiki/Anime"

uClient = urlopen(my_url)
page_html = uClient.read()
uClient.close()
page_soup = BeautifulSoup(page_html, "html.parser")
p=page_soup.findAll("p")


f = open("anime.txt", "w", encoding="utf-8")

for i in p:

    f.write(i.text)
    f.write("\n\n")

f.close()

data= open("anime.txt", encoding="utf-8").read()
anime_count = data.count("anime")
Anime_count = data.count("Anime")

print(anime_count,"\n")
print(Anime_count, "\n")

count= anime_count+Anime_count

print("The total number of times the word Anime appears within <p> in the wikipedia page is : ", count)

最佳答案

不要对打开和关闭文件感到困惑。在with statements中包括所有写作/阅读部分。

from urllib.request import urlopen
from bs4 import BeautifulSoup

with open("anime.txt", "w", encoding="utf-8") as outfile:

    my_url ="https://en.wikipedia.org/wiki/Anime"

    uClient = urlopen(my_url)
    page_html = uClient.read()
    uClient.close()
    page_soup = BeautifulSoup(page_html, "html.parser")
    p=page_soup.findAll("p")


    for i in p:
        outfile.write(i.text)
        outfile.write("\n\n")

with open("anime.txt", "r", encoding="utf-8") as infile:
    data = infile.read()
    anime_count = data.count("anime")
    Anime_count = data.count("Anime")

    print(anime_count,"\n")
    print(Anime_count, "\n")

    count= anime_count+Anime_count

    print("The total number of times the word Anime appears within <p> in the wikipedia page is : ", count)s : ", count)

关于python - 为什么我第一次运行字计数器与第二次字计数器产生不同的输出？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/54496973/