shiyanlou:Desktop/ $ py [23:23:16] zsh: command not found: py shiyanlou:Desktop/ $ python [23:23:21] Python 2.7.6 (default, Jun 22 2015, 17:58:13) [GCC 4.8.2] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import re >>> m= re.search("output_(\d{4})","output_1986.txt") >>> print(m.group(1)) 1986 >>> print(m.group(0)) output_1986 >>> m= re.search("output_(?P\d{4})","output_1986.txt") >>> print (m.group(yyyy)) Traceback (most recent call last): File "", line 1, in NameError: name 'yyyy' is not defined >>> print(m.group(yyyy)) Traceback (most recent call last): File "", line 1, in NameError: name 'yyyy' is not defined >>> print(m.group("yyyy")) 1986 >>> import time >>> print (time.time()) 1483457176.83 >>> print (time.clock()) 0.047766 >>> print ('start') start >>> time.sleep(10) >>> st = time.gmtime() >>> print st time.struct_time(tm_year=2017, tm_mon=1, tm_mday=3, tm_hour=15, tm_min=28, tm_sec=5, tm_wday=1, tm_yday=3, tm_isdst=0) >>> print (st) time.struct_time(tm_year=2017, tm_mon=1, tm_mday=3, tm_hour=15, tm_min=28, tm_sec=5, tm_wday=1, tm_yday=3, tm_isdst=0) >>> st = time.localtime() >>> print (st) time.struct_time(tm_year=2017, tm_mon=1, tm_mday=3, tm_hour=23, tm_min=29, tm_sec=8, tm_wday=1, tm_yday=3, tm_isdst=0) >>> s = time.mktime(st) >>> print s 1483457348.0 >>> import datetime >>> t= datetime.datetime(2012,9,3,21,30) >>> print t 2012-09-03 21:30:00 >>> print t.hour 21 >>> from datetime import datetime >>> format = "output-%Y-%m-%d-%H%M%S.txt" >>> str = "output-1997-12-23-030000.txt" >>> t = datetime.strptime(str,format) >>> print t 1997-12-23 03:00:00 >>> format = "output_%Y.%m.%d.txt" >>> str = "output_" KeyboardInterrupt >>> >>> >>> import os >>> os.mkdir ('/home/vamei/homework') Traceback (most recent call last): File "", line 1, in OSError: [Errno 2] No such file or directory: '/home/vamei/homework' >>> os.mkdir ('~/homework') Traceback (most recent call last): File "", line 1, in OSError: [Errno 2] No such file or directory: '~/homework' >>> exit Use exit() or Ctrl-D (i.e. EOF) to exit >>> quit Use quit() or Ctrl-D (i.e. EOF) to exit >>> KeyboardInterrupt >>> quit() shiyanlou:Desktop/ $ [23:42:15] shiyanlou:Desktop/ $ [23:42:16] shiyanlou:Desktop/ $ ls [23:42:16] brackets.desktop gedit.desktop xfce4-terminal.desktop firefox.desktop gvim.desktop shiyanlou:Desktop/ $ python [23:42:17] Python 2.7.6 (default, Jun 22 2015, 17:58:13) [GCC 4.8.2] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import os >>> import datetime >>> os.mkdir ('/home/shiyanlou/homework') >>> os.mknod ('/home/shiyanlou/homework/output_1981.10.21.txt') >>> path = '/home/shiyanlou/homework/output_1981.10.21.txt' >>> fname = os.path.basename(path) >>> print fname output_1981.10.21.txt >>> fpath = os.path.dirname(path) >>> format = format = "output_%Y.%m.%d.txt" KeyboardInterrupt >>> format = "output_%Y.%m.%d.txt" >>> ftime = datetime.strptime(fname,format) Traceback (most recent call last): File "", line 1, in AttributeError: 'module' object has no attribute 'strptime' >>> ftime = datetime.strptime(fname,format) Traceback (most recent call last): File "", line 1, in AttributeError: 'module' object has no attribute 'strptime' >>> ftime = datetime.datetime.strptime(fname,format) >>> print ftime 1981-10-21 00:00:00 >>> format_after= "output_%Y-%m-%d-%w.txt" >>> print(ftime.strftime(format_after)) output_1981-10-21-3.txt >>> fname_after=ftime.strftime(format_after) >>> fname_final_list=re.split([_\.],fname_after) File "", line 1 fname_final_list=re.split([_\.],fname_after) ^ SyntaxError: unexpected character after line continuation character >>> fname_final_list=re.split(r'[_\.]',fname_after) Traceback (most recent call last): File "", line 1, in NameError: name 're' is not defined >>> import re >>> fname_final_list=re.split(r'[_\.]',fname_after) >>> print fname_final_list ['output', '1981-10-21-3', 'txt'] >>> fname_final_list=re.split(r'[-\.]',fname_after) >>> print fname_final_list ['output_1981', '10', '21', '3', 'txt'] >>> fname_final_list[3]+=1 Traceback (most recent call last): File "", line 1, in TypeError: cannot concatenate 'str' and 'int' objects >>> fname_final_list[3] = str( int(fname_final_list[3]) + 1 ) >>> print fname_final_list ['output_1981', '10', '21', '4', 'txt'] >>> fname_final_list=re.split(r'([-\.])',fname_after) >>> print fname_final_list ['output_1981', '-', '10', '-', '21', '-', '3', '.', 'txt'] >>> fname_final_list[3] = str( int(fname_final_list[6]) + 1 ) >>> print fname_final_list ['output_1981', '-', '10', '4', '21', '-', '3', '.', 'txt'] >>> fname_final_list=re.split(r'([-\.])',fname_after) >>> print fname_final_list ['output_1981', '-', '10', '-', '21', '-', '3', '.', 'txt'] >>> fname_final_list[6] = str( int(fname_final_list[6]) + 1 ) >>> print fname_final_list ['output_1981', '-', '10', '-', '21', '-', '4', '.', 'txt'] >>> fname_final="".join(fname_final_list) >>> print fname_final output_1981-10-21-4.txt >>> print fpath /home/shiyanlou/homework >>> fpath_final=os.path.join('/',fpath,fname_final) >>> print fpath_final /home/shiyanlou/homework/output_1981-10-21-4.txt >>> os.rename(fpath,fpath_final) Traceback (most recent call last): File "", line 1, in OSError: [Errno 22] Invalid argument >>> os.rename(path,fpath_final) >>> listdir(fpath) Traceback (most recent call last): File "", line 1, in NameError: name 'listdir' is not defined >>> os.listdir(fpath) ['output_1981-10-21-4.txt'] >>> ![实验楼](https://dn-simplecloud.shiyanlou.com/3325151483460001476-wm)

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