我有.txt文件,我希望所有时间都可以从txt文件中检查性能。如何使所有时间都进入新列表?
下面是我的.txt文件:
03-21 12:09:34.123 application open
03-21 12:09:35.122 date
03-21 12:09:36.124 completed
03-21 12:09:37.125 None
以下是我尝试过的内容:
def memory(self):
self.empty = []
time_x = []
heap_y = [0,20,40,60,80,100,120]
pattren =re.compile(r'^(([01]\d|2[0-3]):([0-5]\d)|24:00)$')
with open("C:\\Sakurai_Robot\\testlogs\\logcat_105010176.log", "r") as gummi:
for i in gummi.readlines():
if pattren.search(i) !=None:
self.empty.append(i.rstrip('\n'))
print self.empty
我只想要像这样的时间
12:09:34
12:09:35
12:09:36
12:09:37
但是我无法获得。有什么办法可以使所有时间都进入新列表吗?
答案 0 :(得分:0)
此代码可解决您的问题。
import re
output = []
p = re.compile('\d\d:\d\d:\d\d')
with open("path", "r") as fle:
for i in fle.readlines():
lst = p.findall(p)
for match in lst:
output.append(match)
for a in output:
print(a)
根据您的输入运行时,输出如下:
12:09:34
12:09:35
12:09:36
12:09:37
答案 1 :(得分:0)
您也可以完全不用正则表达式来完成它:
timestamps = []
with open("C:\\Sakurai_Robot\\testlogs\\logcat_105010176.log", "r") as gummi:
for i in gummi.readlines():
timestamps.append(i.split(" ")[1].split(".")[0])
print timestamps