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我有下面的代碼:Python的正則表達式搜索字符串
def ospf_route_type_E2_exists(nbr_output,AS_ext_net_list,net_list):
match_list=[]
if type(AS_ext_net_list) is not list:
AS_ext_net_list=[AS_ext_net_list]
if type(net_list) is not list:
net_list=[net_list]
for ext_net,net in zip(AS_ext_net_list,net_list):
net_prefix=str(net).rstrip(".0")
match= re.search(r"O[" "]+E2[" "]+str\(ext_net\)[" "]+\[[0-9]*[0-9]*[0-9]+\/[0-9]+\][" "]+via[" "]+str(net_prefix)",nbr_output)
match_list.append(match)
if any(item for item in match_list):
print "AS External networks properly advertised via correct areas"
return 1
else:
print "AS External networks not properly advertised via correct areas"
return 0
的nbr_ouput下面包含:
show ip route ospf
O IA 192.168.42.0/24 [110/2] via 192.168.43.4, 00:00:29, FastEthernet0/0
O 192.168.124.0/24 [110/2] via 192.168.43.4, 00:00:29, FastEthernet0/0
10.0.0.0/24 is subnetted, 1 subnets
O E2 10.1.1.0 [110/1] via 192.168.43.4, 00:00:29, FastEthernet0/0
我要搜索的行:
O E2 10.1.1.0 [110/1] via 192.168.43.4, 00:00:29, FastEthernet0/0
使用如我的代碼中的匹配行:
match= re.search(r"O[" "]+E2[" "]+str\(ext_net\)[" "]+\[[0-9]*[0-9]*[0-9]+\/[0-9]+\][" "]+via[" "]+str(net_prefix)",nbr_output)
預期輸出:
print "AS External networks properly advertised via correct areas"
return 1
輸出,我得到:
print "AS External networks not properly advertised via correct areas"
return 0
,告訴我,我的正則表達式搜索無法正常工作。請讓我知道我做錯了
爲什麼你在'[「」]'中有引號?您嘗試匹配的字符串中沒有引號。 – Barmar
您可以使用'\ d'來匹配數字而不是'[0-9]'。 '[0-9] * [0-9] * [0-9] +'沒有意義重複它們,它應該是'[0-9] +'。 – Barmar
我試圖匹配至少一個或多個空格。我做錯了嗎?它應該只是'[] +'?除此之外,一切都很好? –