写入文件问题并显示文件内容

发布于 2024-10-27 06:03:36 字数 856 浏览 5 评论 0原文

当我将字典写入文件后，我目前无法正确显示文件。对于该程序，输入文件需要具有以下格式： ID: Date: Dayskept: ProductName 例如 1:12/12/2011:12:A

第一次将示例文件读入字典时这很好，但一旦我将字典保存到新文件并尝试打开此文件我得到输出： 1:"date":12/12/2011, "life":12, "name":A

有没有一种简单的方法可以在将字典中的数据写入文件之前对其进行格式化？感谢您提供的任何建议

    def loadProduct(fileName):
    global cheeseDictionary
    f = open(fileName,"r")
    line = f.readline()         # Reads line from file
    while line:
        line = line[:-1]
        data = split(line,":")  # Splits line when there is a colon
        cheeseDictionary[data[0]] = {"date":data[1], "life":data[2], "name":data[3]} # Stores each split item
        line = f.readline()     # Next line
    f.close()
    print cheeseDictionary

def saveProduct(fileName):
    global cheeseDictionary
    f = open(fileName,"w")
    pickle.dump(cheeseDictionary, f)
    f.close()

原文

I am currently having problems displaying a file correctly once i have written a dictionary to the file. For this program the input file needs to have the format:
ID: Date: Dayskept: ProductName e.g. 1:12/12/2011:12:A

This is fine the first time I read the example file into a dictionary, but once i save the dictionay into a new file and try to open this file i get the output:
1:"date":12/12/2011, "life":12, "name":A

Is there an easy way to format the data in the dictionary before it is written to file?
Thanks for any advice given

    def loadProduct(fileName):
    global cheeseDictionary
    f = open(fileName,"r")
    line = f.readline()         # Reads line from file
    while line:
        line = line[:-1]
        data = split(line,":")  # Splits line when there is a colon
        cheeseDictionary[data[0]] = {"date":data[1], "life":data[2], "name":data[3]} # Stores each split item
        line = f.readline()     # Next line
    f.close()
    print cheeseDictionary

def saveProduct(fileName):
    global cheeseDictionary
    f = open(fileName,"w")
    pickle.dump(cheeseDictionary, f)
    f.close()

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北风几吹夏 2024-11-03 06:03:36

由于您有所需的特定格式，因此您需要编写代码来发出该格式。（我不知道你想用其中的 pickle 做什么，这会产生一种二进制格式，与你所说的没有任何相似之处。）

例如，你可以像这样重新定义 saveProduct ：

def saveProduct(fileName, cheeseDictionary):
    f = open(fileName, "w")
    for i in sorted(cheeseDictionary.keys()):
        v = cheeseDictionary[i]
        f.write("%s:%s:%s:%s\n" % (i, v["date"], v["life"], v["name"]))

Since you have a specific format you want, you're going to need to write code to emit that format. (I don't know what you're trying to do with pickle in there, that produces a binary format that doesn't bear any resemblance to what you say you're getting.)

For instance, you could redefine saveProduct like so:

def saveProduct(fileName, cheeseDictionary):
    f = open(fileName, "w")
    for i in sorted(cheeseDictionary.keys()):
        v = cheeseDictionary[i]
        f.write("%s:%s:%s:%s\n" % (i, v["date"], v["life"], v["name"]))

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