1 # 用生成器实现处理文件，用户指定要查找的文件和内容，将文件中包含要查找内容的每一行输出到屏幕
2
3 def func(filename, fileinfo):
4 with open(filename, mode='r', encoding='utf-8') as f:
5 for line in f:
6 if fileinfo in line:
7 yield fileinfo
8
9 filename = input("请输入文件名：")
10 fileinfo = input("请输入要查找的内容：")
11
12 g = func(filename, fileinfo)
13
14 for i in g:
15 print(i.strip())
16
17
18
19
20
21 # 写生成器，从文件中读取内容，在每一次读取到的内容之前加上***之后再返回给用户
22
23 def func1(filename):
24 with open(filename, mode='r', encoding='utf-8') as f:
25 for line in f:
26 yield '****' + line
27
28 for i in func1('text.txt'):
29 print(i.strip())
