Question

编辑：此问题已得到解决。我想我会把这个留在这里，以备将来需要一个例子的人使用。

此代码接收输入文件，解析它，将文件传递给类，将对象存储在字典中，然后以指定的格式写出对象。有什么问题吗？我很乐意回答他们！

这是我的代码：

#C:\Python27\python.exe Animals(1).py

inp = open("C:\Users\curnutte\Desktop\Assignment\Python Scripts\Python example\Classes\ClassTutorialInput.txt", "r")
outp = open("C:\Users\curnutte\Desktop\Assignment\Python Scripts\Python example\Classes\ClassTutorialOutput.txt", "w")

aniList = []

for line in inp.readlines():
    if line == '\n':
        line = "nothing"
    line = line.strip()                                                        #removes '\n'
    if line != '%% ================= %%':                                       #grabs all pertinent information
        aniList.append(line)                                                    #condenses lines to one line
print(aniList)

class Animals():                                                                 #creates the Animals class
    def __init__(self, species, features, diet, drinks, threats):
        self.species = species
        self.features = features
        self.diet = diet
        self.drinks = drinks
        self.threats = threats

my_animals=[]

counter = 0
for item in aniList:                                                            #iterates through the input file
    counter += 1
    if counter == 1:
        species = item
        continue
    if counter == 2:
        features = item
        continue
    if counter == 3:
        diet = item
        continue
    if counter == 4:
        drinks = item
        continue
    if counter == 5:
        threats = item
        my_animals.append(Animals(species, features, diet, drinks, threats))
        counter = 0
        continue

animal_dict = {}

for index in my_animals:
    animal_dict[index.species] = (index)
    print (animal_dict)
    oldLook = index.features.split(",")
    newLook = index.features
    if len(oldLook) == 2:
        newLook = oldLook[0].strip() + ' and ' + oldLook[1].strip()
    if len(oldLook) > 2:
        newLook = oldLook[:-1]
        newLook = ",".join(newLook)
        newLook = newLook + ' and ' + oldLook[-1].strip()
    index.features = newLook

    oldDiet = index.diet.split(",")
    newDiet = index.diet
    if len(oldDiet) == 2:
        newDiet = oldDiet[0].strip() + ' and ' + oldDiet[1].strip()
    if len(oldDiet) > 2:
        newDiet = oldDiet[:-1]
        newDiet = ",".join(newDiet)
        newDiet = newDiet + ' and ' + oldDiet[-1].strip()
    index.diet = newDiet

    oldPred = index.threats.split(",")
    newPred = index.threats
    if len(oldPred) == 2:
       newPred = oldPred[0].strip() + ' and ' + oldPred[1].strip()
    if len(oldPred) > 2:
       newPred = oldPred[:-1]
       newPred = ",".join(newPred)
       newPred = newPred + ' and ' + oldPred[-1].strip()
    index.threats = newPred
    outp.write("A %s has %s, eats %s, drinks %s, and is eaten by %s.\n" % (index.species, index.features, index.diet, index.drinks, index.threats))

inp.close()
outp.close()

这是'ClassTutorialInput.txt'：

deer
fur, antlers, a peaceful disposition
grass, leaves, roots
water
wolves, bear, mountain lions
%% ================= %%
fish
scales, a clueless lifestyle
bugs
water
sharks, humans
%% ================= %%
lion
fur, manes, a blood-thirst
antelope, humans
water

%% ================= %%
human
hair, skin
vegetables, meat
water

%% ================= %%

Answer 1

您可以通过添加以下行来获取输入文件中的所有行：input_lines = inp.readlines()，它将返回输入文件中您可以解析的所有行的列表。

Answer 2

for index in my_animals:
oldDiet = index.diet.split(",")
newDiet = index.diet
if len(oldDiet) == 2:
    newDiet = oldDiet[0].strip() + ' and ' + oldDiet[1].strip()
if len(oldDiet) > 2:
    newDiet = oldDiet[:-1]
    newDiet = ",".join(newDiet)
    newDiet = newDiet + ' and ' + oldDiet[-1].strip()
index.diet = newDiet

oldPred = index.threats.split(",")
newPred = index.threats
if len(oldPred) == 2:
    newPred = oldPred[0].strip() + ' and ' + oldPred[1].strip()
if len(oldPred) > 2:
    newPred = oldPred[:1]
    newPred = ",".join(newPred)
    newPred = newPred + ' and ' + oldPred[-1].strip()
index.threats = newPred
outp.write("A %s has %s, eats %s, and is eaten by %s.\n" % (index.species, index.features, index.diet, index.threats))

将对象列表添加到字典中

2 个答案: