在较大的字符串中查找较小的字符串

Question

我试图编写一些循环遍历字符串文件（县名）的逻辑，并检查它们是否在另一个文件中的较大字符串中（恶劣天气警告）。我读过的所有内容都告诉我正确地执行此操作但是代码不匹配。任何帮助，将不胜感激。下面是我的骨架代码。

测试县警告过滤的程序

file1 = 'path/to/file1'
file2 = 'path/to/file2'

fp = open(file1,'rb')
string = fp.read()
fp.close()


file = open(file2,'rb')

for line in file:
    if line in string:
        print("found")
    else:
        print("not found")

文件1的示例：

BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SEVERE THUNDERSTORM WARNING  
NATIONAL WEATHER SERVICE JACKSON MS  
457 PM CDT MON AUG 4 2014  

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A  

* SEVERE THUNDERSTORM WARNING FOR...  
  EASTERN FRANKLIN COUNTY IN SOUTHWEST MISSISSIPPI...  
  CENTRAL LINCOLN COUNTY IN SOUTH CENTRAL MISSISSIPPI...  

* UNTIL 545 PM CDT  

file2示例：

FRANKLIN COUNTY

LINCOLN COUNTY

Ect...

Answer 1

line包含换行符（'\n'）。

尝试更改

if line in string:

到

if line.strip() in string: