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admin2025/4/21 12:09:10【news】
简介新增网站,论坛发帖,嘉兴做网站的公司,开发一个app软件的开发费用简单记录一下利用python装饰器来调整函数的方法。现在有个需求：参数line范围为1-16，要求把9-16的范围转化为1-8，即9对应1,10对应2,...,16对应8。下面是例子：1 defformat_lines():2 defmake_wrapper(func):3 def wrapper(*args, **…
简单记录一下利用python装饰器来调整函数的方法。现在有个需求：参数line范围为1-16，要求把9-16的范围转化为1-8，即9对应1,10对应2,...,16对应8。
下面是例子：
1 defformat_lines():2 defmake_wrapper(func):3 def wrapper(*args, **kwargs):4 lines = list(args)[1:]5 new_args =list()6 for index, line inenumerate(lines):7 ifisinstance(line,tuple):8 for index, l inenumerate(line):9 if line > 8 and line <16:10 line = line % 8
11 elif line == 16:12 line = 8
13 new_args.insert(index,line)14 new_args.insert(0,args[0])15 return func(*tuple(new_args), **kwargs)16 else:17 if line > 8 and line <16:18 line = line % 8
19 elif line == 16:20 line = 8
21 new_args.insert(index,line)22 new_args.insert(0,args[0])23 return func(*tuple(new_args), **kwargs)24 returnwrapper25 return make_wrapper
注意：wrapper的参数args即实际的lines，修改完后，传递给实际的func函数即可
使用：
class MainCom_Usb_Cmd():
"""atc platform hardware usb cmd
"""
def __init__(self,ip,port):
self.address = (ip, int(port))
@format_lines()
def turn_on_usb_signal(self,*lines):
"""only turn on usb signal
"""
if not lines :
lines = range(1,9)
while True:
try:
self.client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.client.connect(self.address)
break
except Exception, e:
time.sleep(0.1)
continue
try:
is_succeed = True
self.close_usb(lines,is_connect=True)
for line in lines:
retry_count = 0
while retry_count < 3:
self.client.send(‘SwitchToUSB:::&%d&&&&\n\r‘ % line)
time.sleep(.2)
data = self.client.recv(1024)
if len(data)>0:
print data
pattern = re.compile(r"CH%d\s+USB\s+sig\s+connect\s+to\s+PCUSB" % line)
match = pattern.search(data)
if match is None:
retry_count = retry_count + 1
else:
break
if retry_count >= 3:
is_succeed = False
except:
traceback.print_exc()
finally:
self.client.close()
return is_succeed
@format_lines()
def turn_on_usb_power(self,*lines):
"""only turn on usb power for fastly charging device
"""
if not lines:
lines = range(1,9)
while True:
try:
self.client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.client.connect(self.address)
break
except Exception, e:
time.sleep(0.1)
continue
try:
is_succeed = True
self.close_usb(lines,is_connect=True)
for line in lines:
retry_count = 0
while retry_count < 3:
self.client.send(‘SwitchToDUT5V:::&%d&&&&\n\r‘ % line)
time.sleep(.2)
data = self.client.recv(1024)
if len(data)>0:
print data
pattern = re.compile(r"CH%d\s+USB\s+POWER\s+connect" % line)
match = pattern.search(data)
if match is None:
retry_count = retry_count + 1
else:
break
if retry_count >= 3:
is_succeed = False
except:
traceback.print_exc()
finally:
self.client.close()
return is_succeed
原文：http://www.cnblogs.com/linyihai/p/6239104.html
