# grep -rl 'python' /root 搜索root目录下文件内容包含python的文件名路径
import os
def init(func):
def wrapper(*args,**kwargs):
res = func(*args,**kwargs)
next(res)
return res
return wrapper
@init
def search(target):
while True:
search_path = yield
g=os.walk(search_path)
for par_dir,_,files in g:
for file in files:
file_abs_path = r'%s\%s' % (par_dir,file)
target.send(file_abs_path)
@init
def opener(target):
while True:
file_abs_path = yield
with open(file_abs_path,'r',encoding='utf-8') as f:
target.send((file_abs_path,f))
@init
def cat(target):
while True:
file_abs_path,f = yield
for line in f:
tag =target.send((file_abs_path,line)) #注意:对于需要传两个yield的,在send时需要将这两个值放在一个元组中传递(())
if tag:
break
@init
def grep(target,pattern):
tag = False
while True:
file_abs_path,line = yield tag
tag = False
if pattern in line:
tag = True
target.send(file_abs_path)
@init
def printer():
while True:
file_abs_path = yield
print(file_abs_path)
#调用
x = r'D:\Python_OldBoy\课程\day5\day5\a'
g = search(opener(cat(grep(printer(),'python'))))
g= search(opener(cat(grep(printer(),'python'))))
g.send(x)