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我有一些停車的汽車註冊代碼。我創建了一本汽車註冊號字典作爲鍵和休息信息的字典值。我試圖通過輸入註冊號碼來獲取每個註冊的詳細信息(值)。即使id在字典中,它也會顯示字典中未找到的消息。如何從字典中的鍵獲取值
global variable
data_dict = {}
def createNameDict(filename):
path = "C:\Users\user\Desktop"
basename = "ParkingData_Part2.txt"
filename = path + "\\" + basename
file = open(filename)
contents = file.read()
print contents,"\n"
data_list = [lines.split(",",1) for lines in contents.split("\n")]
#data_list.sort()
#print data_list
#dict_list = []
for line in data_list:
keys = line[0]
values = line[1]
data_dict[keys] = values
print data_dict,"\n"
print data_dict.keys(),"\n"
print data_dict.values(),"\n"
print data_list
def detailForRegistrationNumber(regNumber):
regNumber == "keys"
if regNumber in data_dict:
print data_dict[regNumber]
else:
print regNumber, "Not in dictionary"
我得到的錯誤信息是:
======= Loading Progam =======
>>> detailForRegistrationNumber('EDF768')
EDF768 Not in dictionary
但詞典有上述註冊號:
{'HUY768': ' Wilbur Matty, 8912, Creche_Parking', 'GH7682': ' Clara Hill, 7689, AgHort_Parking', 'GEF123': ' Jill Black, 3456, Creche_Parking', 'WER546': ' Olga Grey, 9898, Creche_Parking', 'TY5678': ' Jane Miller, 8987, AgHort_Parking', 'ABC234': ' Fred Greenside, 2345, AgHort_Parking', 'KLOI98': ' Martha Miller, 4563, Vet_Parking', **'EDF768'**: ' Bill Meyer, 2456, Vet_Parking', 'JU9807': ' Jacky Blair, 7867, Vet_Parking', 'DF7800': ' Jacko Frizzle, 4532, Creche_Parking', 'ADF645': ' Cloe Freckle, 6789, Vet_Parking'}
如果你在你的路徑中使用反斜槓(protip:不要,甚至windows支持正斜槓!),你需要轉義它們或者簡單地使用*原始字符串*:'r'C:\ whatever \ path'' – ThiefMaster
你的'主要'方法在哪裏? createNameDict在哪裏被調用?從上面的代碼片斷中,我無法分辨它是否被調用,或者你忘記調用它。如果您忘記調用它,那麼爲任何參數調用detailForRegistrationNumber將會說它不在字典中。 – Neal
您似乎沒有從您的其他帖子關於如何輸入該文本的任何建議:http://stackoverflow.com/questions/10545544/converting-lists-to-dictionaries/10545736#10545736 – hexparrot