python - 如何从文本文件打印字典的排序列表？

Question

所以这个数据文件叫做friends2.txt:

John,555-234-9876,May 5
Mary,556-987-2367,December 12
Albert,555-987-6765,June 12
Leo,555-789-9865,February 25
Ruth,555-786-1238,October 2
Fred,556-235-4536,June 17

但是，我必须创建字典，其中名称(即约翰)是键，值是电话号码和生日的列表(即{'John': (555-234-9876, May 5)} . 但是，我不确定如何排序(按键值)并逐行打印出文本文件的每一行。目标输出是:

Albert 555-987-6765 June 12
Fred 556-235-4536 June 17
John 555-234-9876 May 5
Leo 555-789-9865 February 25
Mary 556-987-2367 December 12
Ruth 555-786-1238 October 2

到目前为止，我的代码:

if __name__ == '__main__':
    file_name = "friends2.txt"
    inf = open(file_name,"r")

    myfriends = {}
    # how to build ? myfriends = {key, list(myfriends[name][0], myfriends[name])}
    for line in inf:
        fields = line.split(",")
        myfriends[fields[0]] = fields[1:]

        # value is a list containing the phone number, in position 0, and the birthday in position 1
        # build a list from the phone number and birthday for the "value" in the key-value pair 

    for name in sorted(myfriends):
        print("{} {} {}".format(sorted(myfriends), myfriends[name][0], myfriends[name][1].strip("\n")))

我试过

 for name in sorted(myfriends):
        print("{} {} {}".format(sorted(myfriends), myfriends[name][0], myfriends[name][1].strip("\n")))

但这会产生

['Albert', 'Fred', 'John', 'Leo', 'Mary', 'Ruth'] 555-987-6765 June 12
['Albert', 'Fred', 'John', 'Leo', 'Mary', 'Ruth'] 556-235-4536 June 17
['Albert', 'Fred', 'John', 'Leo', 'Mary', 'Ruth'] 555-234-9876 May 5
['Albert', 'Fred', 'John', 'Leo', 'Mary', 'Ruth'] 555-789-9865 February 25
['Albert', 'Fred', 'John', 'Leo', 'Mary', 'Ruth'] 556-987-2367 December 12
['Albert', 'Fred', 'John', 'Leo', 'Mary', 'Ruth'] 555-786-1238 October 2

我将如何使键(名称)正确排序和迭代？
任何帮助，将不胜感激!

Answer 1

您正在迭代 myfriends 的键您创建的字典。您需要使用此键来访问包含您之前存储的字段的字典条目:

for key in sorted(myfriends):
    print("{} {} {}".format(key, myfriends[key][0], myfriends[key][1]))

将条目存储到字典中时，您使用了 fields[0]作为键，所以你应该输出 key输出名称，然后访问 myfriends[key][0]和 myfriends[key][1]输出以前是 fields[1:] .