所以我有一个名为Person的类,基本上有构造函数名称,id,年龄,位置,目的地,我想要做的是当我想创建一个新人时,我希望它从txt文件打开.
例如,这是我的Person类(在Module,People中)
class Person :
def __init__(self,name,ID,age,location,destination):
self.name = name
self.ID = ID
self.age = age
self.location = location
self.destination = destination
def introduce_myself(self):
print("Hi,my name is " + self.name + ",my ID number is " + str(self.ID) + " I am " + str(self.age) + " years old")
import People
Fred = People.Person("Fred",12323,13,"New York","Ithaca")
Fred.introduce_myself()
所以基本上,而不是我必须手动键入那个intializer“fred,12232”等.
我希望它从包含所有已写入内容的txt文件中读取.
这就是txt文件中的内容
[Name,Age,Location,Destination]
[Rohan,222221,28,Ithaca,New Caanan]
[Oat,222222,20,New York City]
[Darius,222223,12,Los Angeles,Ithaca]
[Nick,222224,26,New Caanan,Ithaca]
[Andrew,222225,46,Ithaca]
[James,222226,34,Ithaca]
[Jennifer,222227,56,New Caanan]
[Angela,222228,22,New York City,Los Angeles]
[Arista,222229,66,Los Angeles]
instances = {} #use a dictionary to store the instances
#open the file using `with` statement,it'll automatically close the
#file for you
with open('abc') as f:
next(f) #skip header
for line in f: #now iterate over the file line by line
data = line.strip('[]').split(',') #strip [] first and then split at ','
#for first line it'll return:
#['Rohan','222221','28','Ithaca','New Caanan'],a list object
#Now we can use the first item of this list as the key
#and store the instance in the instances dict
#Note that if the names are not always unique then it's better to use ID as the
#key for the dict,i.e instances[data[1]] = Person(*data)
instances[data[0]] = Person(*data) # *data unpacks the data list into Person
#Example: call Rohan's introduce_myself
instances['Rohan'].introduce_myself()
输出：
Hi,my name is Rohan,my ID number is 222221 I am 28 years old
