timeline = '''
1961 - Second child, John, is born. 1963 - Is ordained as a Presbyterian minister. Makes his on-camera debut as host of a series of 15-minute episodes for children produced in Toronto. The program is titled "Mister Rogers." 1964 - Returns to Pittsburgh
and turns his 15-minute show into the half-hour "Mister Rogers' Neighborhood." 1968 - "Mister Rogers' Neighborhood" debuts on PBS and wins the first of its several Emmy Awards. Rogers is appointed chairman of the Forum on Mass Media and Child Development
of the White House Conference on Youth. 1969 - Wins the first of his two George Foster Peabody Awards for television excellence. Fred Rogers readies the opening pitch to start the Pirates' season in 1988. (Post-Gazette archives) 1971 - Forms his production
company, Family Communications Inc. 1975 - Ceases production on "Mister Rogers' Neighborhood," which continues to air on PBS in reruns. 1978 - Creates the PBS series "Old Friends, New Friends," focusing on older people. 1979 - Production resumes on
"Mister Rogers' Neighborhood." 1981 - Eddie Murphy plays an inner-city children's show host in his "Mister Robinson's Neighborhood" sketch on "Saturday Night Live," which is probably the most famous of the many "Mister Rogers" spoofs. 1984 - The Smithsonian
Institution in Washington makes Fred Rogers' trademark sweater part of its permanent collection. Rogers forces the fast-food chain Burger King to remove ads featuring a Mister Rogers lookalike. 1987 - Appears on a children's TV show in the Soviet
Union and reciprocates by having a Soviet host appear on his show later in the year. 1989 - "Mister Rogers' Neighborhood of Make Believe" opens as an attraction at Idlewild Park. 1990 - Sues the Ku Klux Klan and forces the organization to stop playing
racist telephone recordings featuring imitations of Fred Rogers' voice, speech patterns and theme song. 1991 - Tapes spots for PBS on the eve of the Gulf War to reassure children that they will be all right if hostilities occur. 1996 - TV Guide names
Fred Rogers one of the 50 greatest TV stars of all time. Rogers makes his only appearance as someone other than himself when he takes a cameo role as a preacher on the drama series "Dr. Quinn, Medicine Woman," which he says is one of his favorite
shows. 1997 - Is honored for lifetime achievement by the National Academy of Television Arts and Sciences (who hand out the Emmy Awards) and by the Television Critics Association. Named Pittsburgher of the Year by Pittsburgh magazine. 1998 - Gets
a star on the Hollywood Walk of Fame. The Pittsburgh Children's Museum opens a Mister Rogers exhibit. 1999 - Is inducted into the Television Hall of Fame. 2000 - Unveils a planetarium show featuring "Neighborhood" characters at the Carnegie Science
Center; ceases production on "Mister Rogers' Neighborhood." 2001 - Last original episodes of "Mister Rogers' Neighborhood" airs on PBS. 2002 - In July, is presented the Presidential Medal of Freedom, the nation's highest civilian honor. Filmed PBS
public service announcements in August encouraging parents to read to their children and giving them advice on how to handle the first anniversary of the Sept. 11, 2001, terrorist attacks. Is named grand marshal of the Tournament of Roses Parade in
Pasadena, Calif., with Bill Cosby and Art Linkletter. The theme: "Children's Wishes, Dreams and Imagination." 2003 - Dies of stomach cancer at age 74.
'''
我的目标是将其设为字典，其中键是年份，值是时间轴上的事件。但是，我有点麻烦。
我想首先将时间轴拆分为如下列表：{key，value，key，value}然后将其转换为dict。我想在“ - ”之前拆分字符串5或6个字符以完成此操作，但我不知道该怎么做。任何人都可以帮助我吗？
编辑： 想出了这个可能的解决方案 -
timeline = timeline.replace("\n","")
timeline = timeline.replace("\\","")
timeline = timeline.replace("19","zz19")
timeline = timeline.replace("20","zz20")
timeline = timeline.split(" - ")
所以基本上我最终得到了这个：
['zz1961', 'Second child, John, is born. zz1963', 'Is ordained as a Presbyterian minister. Makes his on-camera debut as host of a series of 15-minute episodes for children produced in Toronto. The program is titled "Mister Rogers." zz1964', 'Returns to Pittsburgh and turns his 15-minute show into the half-hour "Mister Rogers\' Neighborhood." zz1968', '"Mister Rogers\' Neighborhood" debuts on PBS and wins the first of its several Emmy Awards. Rogers is appointed chairman of the Forum on Mass Media and Child Development of the White House Conference on Youth. zz1969', "Wins the first of his two George Foster Peabody Awards for television excellence. Fred Rogers readies the opening pitch to start the Pirates' season in zz1988. (Post-Gazette archives) zz1971", 'Forms his production company, Family Communications Inc. zz1975', 'Ceases production on "Mister Rogers\' Neighborhood," which continues to air on PBS in reruns. zz1978', 'Creates the PBS series "Old Friends, New Friends," focusing on older people. zz1979', 'Production resumes on "Mister Rogers\' Neighborhood." zz1981', 'Eddie Murphy plays an inner-city children\'s show host in his "Mister Robinson\'s Neighborhood" sketch on "Saturday Night Live," which is probably the most famous of the many "Mister Rogers" spoofs. zz1984', "The Smithsonian Institution in Washington makes Fred Rogers' trademark sweater part of its permanent collection. Rogers forces the fast-food chain Burger King to remove ads featuring a Mister Rogers lookalike. zz1987", "Appears on a children's TV show in the Soviet Union and reciprocates by having a Soviet host appear on his show later in the year. zz1989", '"Mister Rogers\' Neighborhood of Make Believe" opens as an attraction at Idlewild Park. zz1990', "Sues the Ku Klux Klan and forces the organization to stop playing racist telephone recordings featuring imitations of Fred Rogers' voice, speech patterns and theme song. zz1991", 'Tapes spots for PBS on the eve of the Gulf War to reassure children that they will be all right if hostilities occur. zz1996', 'TV Guide names Fred Rogers one of the 50 greatest TV stars of all time. Rogers makes his only appearance as someone other than himself when he takes a cameo role as a preacher on the drama series "Dr. Quinn, Medicine Woman," which he says is one of his favorite shows. zz1997', 'Is honored for lifetime achievement by the National Academy of Television Arts and Sciences (who hand out the Emmy Awards) and by the Television Critics Association. Named Pittsburgher of the Year by Pittsburgh magazine. zz1998', "Gets a star on the Hollywood Walk of Fame. The Pittsburgh Children's Museum opens a Mister Rogers exhibit. zz1999", 'Is inducted into the Television Hall of Fame. zz2000', 'Unveils a planetarium show featuring "Neighborhood" characters at the Carnegie Science Center; ceases production on "Mister Rogers\' Neighborhood." zz2001', 'Last original episodes of "Mister Rogers\' Neighborhood" airs on PBS. zz2002', 'In July, is presented the Presidential Medal of Freedom, the nation\'s highest civilian honor. Filmed PBS public service announcements in August encouraging parents to read to their children and giving them advice on how to handle the first anniversary of the Sept. 11, zz2001, terrorist attacks. Is named grand marshal of the Tournament of Roses Parade in Pasadena, Calif., with Bill Cosby and Art Linkletter. The theme: "Children\'s Wishes, Dreams and Imagination." zz2003', 'Dies of stomach cancer at age 74.']
所以我想把这个字符串拆分为“zz”，唯一的问题是我不能将它拆分两次因为它已经是一个列表了。显然我可以连接列表，但是我会遇到与现在相同的问题。
尝试这样做：
for i in timeline:
i = i.split("zz")
但它不起作用：（
答案 0 :(得分：2)
让我们用正则表达式分开！
import re
stripped_string = timeline.replace('\n', '').strip() # whitespaces go away
splitted = re.split('(\d{4}) - ', stripped_string) # split to ['', year1, event1, year2, event2, ...]
lst = splitted[1:] # first empty split goes away
keys = lst[0::2] # get years
values = lst[1::2] # get events
dic = dict(zip(keys, values))
你可以进一步提高它的具体性。例如，如果您知道年份是19xx或20xx，那么：
splitted = re.split('((?:19|20)\d\d) - ', stripped_string)
也会这样做。
此外，由于您明确地keys和values，您可以轻松地执行多项操作，例如删除values中每个元素的空格。例如：
values = [event.strip() for event in lst[1::2]]
结果如下：
>>> print("\n".join("{}: {}".format(k, v) for k, v in dic.items()))
1989: "Mister Rogers' Neighborhood of Make Believe" opens as an attraction at Idlewild Park.
1987: Appears on a children's TV show in the Soviet Union and reciprocates by having a Soviet host appear on his show later in the year.
1984: The Smithsonian Institution in Washington makes Fred Rogers' trademark sweater part of its permanent collection. Rogers forces the fast-food chain Burger King to remove ads featuring a Mister Rogers lookalike.
1968: "Mister Rogers' Neighborhood" debuts on PBS and wins the first of its several Emmy Awards. Rogers is appointed chairman of the Forum on Mass Media and Child Development of the White House Conference on Youth.
1969: Wins the first of his two George Foster Peabody Awards for television excellence. Fred Rogers readies the opening pitch to start the Pirates' season in 1988. (Post-Gazette archives)
1981: Eddie Murphy plays an inner-city children's show host in his "Mister Robinson's Neighborhood" sketch on "Saturday Night Live," which is probably the most famous of the many "Mister Rogers" spoofs.
1964: Returns to Pittsburgh and turns his 15-minute show into the half-hour "Mister Rogers' Neighborhood."
1961: Second child, John, is born.
1963: Is ordained as a Presbyterian minister. Makes his on-camera debut as host of a series of 15-minute episodes for children produced in Toronto. The program is titled "Mister Rogers."
1991: Tapes spots for PBS on the eve of the Gulf War to reassure children that they will be all right if hostilities occur.
1990: Sues the Ku Klux Klan and forces the organization to stop playing racist telephone recordings featuring imitations of Fred Rogers' voice, speech patterns and theme song.
1997: Is honored for lifetime achievement by the National Academy of Television Arts and Sciences (who hand out the Emmy Awards) and by the Television Critics Association. Named Pittsburgher of the Year by Pittsburgh magazine.
1979: Production resumes on "Mister Rogers' Neighborhood."
1996: TV Guide names Fred Rogers one of the 50 greatest TV stars of all time. Rogers makes his only appearance as someone other than himself when he takes a cameo role as a preacher on the drama series "Dr. Quinn, Medicine Woman," which he says is one of his favorite shows.
1999: Is inducted into the Television Hall of Fame.
1998: Gets a star on the Hollywood Walk of Fame. The Pittsburgh Children's Museum opens a Mister Rogers exhibit.
1975: Ceases production on "Mister Rogers' Neighborhood," which continues to air on PBS in reruns.
1978: Creates the PBS series "Old Friends, New Friends," focusing on older people.
1971: Forms his production company, Family Communications Inc.
2002: In July, is presented the Presidential Medal of Freedom, the nation's highest civilian honor. Filmed PBS public service announcements in August encouraging parents to read to their children and giving them advice on how to handle the first anniversary of the Sept. 11, 2001, terrorist attacks. Is named grand marshal of the Tournament of Roses Parade in Pasadena, Calif., with Bill Cosby and Art Linkletter. The theme: "Children's Wishes, Dreams and Imagination."
2003: Dies of stomach cancer at age 74.
2000: Unveils a planetarium show featuring "Neighborhood" characters at the Carnegie Science Center; ceases production on "Mister Rogers' Neighborhood."
2001: Last original episodes of "Mister Rogers' Neighborhood" airs on PBS.
答案 1 :(得分：2)
你可以像这样制作字典：
parts = timeline.replace('\n','').split(" - ")
d = dict()
for x in range(len(parts) - 1):
d[parts[x][-4:]] = parts[x + 1][:len(parts[x+1]) - 4]
由于您的分隔符明确为" - "，因此您可以使用以下项目：
'1961'
'blablablablabla. 1963'
'blablablablabla. 1968'
'blablablablabla. 1969'
'blablablablabla'
然后，您只需要将文本中的最后4个字符与除最后4个字符之外的下一个文本配对。因此，简单的分割和切片将适合您。
使用它来显示结果：
for a in d:
print(a + " " + d[a])
这就是我得到的：
1975 Ceases production on "Mister Rogers' Neighborhood," which continues to air on PBS in reruns.
1968 "Mister Rogers' Neighborhood" debuts on PBS and wins the first of its several Emmy Awards. Rogers is appointed chairman of the Forum on Mass Media and Child Development of the White House Conference on Youth.
2001 Last original episodes of "Mister Rogers' Neighborhood" airs on PBS.
1990 Sues the Ku Klux Klan and forces the organization to stop playing racist telephone recordings featuring imitations of Fred Rogers' voice, speech patterns and theme song.
2002 In July, is presented the Presidential Medal of Freedom, the nation's highest civilian honor. Filmed PBS public service announcements in August encouraging parents to read to their children and giving them advice on how to handle the first anniversary of the Sept. 11, 2001, terrorist attacks. Is named grand marshal of the Tournament of Roses Parade in Pasadena, Calif., with Bill Cosby and Art Linkletter. The theme: "Children's Wishes, Dreams and Imagination."
1989 "Mister Rogers' Neighborhood of Make Believe" opens as an attraction at Idlewild Park.
1996 TV Guide names Fred Rogers one of the 50 greatest TV stars of all time. Rogers makes his only appearance as someone other than himself when he takes a cameo role as a preacher on the drama series "Dr. Quinn, Medicine Woman," which he says is one of his favorite shows.
1987 Appears on a children's TV show in the Soviet Union and reciprocates by having a Soviet host appear on his show later in the year.
1963 Is ordained as a Presbyterian minister. Makes his on-camera debut as host of a series of 15-minute episodes for children produced in Toronto. The program is titled "Mister Rogers."
1984 The Smithsonian Institution in Washington makes Fred Rogers' trademark sweater part of its permanent collection. Rogers forces the fast-food chain Burger King to remove ads featuring a Mister Rogers lookalike.
1971 Forms his production company, Family Communications Inc.
1991 Tapes spots for PBS on the eve of the Gulf War to reassure children that they will be all right if hostilities occur.
1997 Is honored for lifetime achievement by the National Academy of Television Arts and Sciences (who hand out the Emmy Awards) and by the Television Critics Association. Named Pittsburgher of the Year by Pittsburgh magazine.
1999 Is inducted into the Television Hall of Fame.
1964 Returns to Pittsburgh and turns his 15-minute show into the half-hour "Mister Rogers' Neighborhood."
2000 Unveils a planetarium show featuring "Neighborhood" characters at the Carnegie Science Center; ceases production on "Mister Rogers' Neighborhood."
1981 Eddie Murphy plays an inner-city children's show host in his "Mister Robinson's Neighborhood" sketch on "Saturday Night Live," which is probably the most famous of the many "Mister Rogers" spoofs.
1978 Creates the PBS series "Old Friends, New Friends," focusing on older people.
1969 Wins the first of his two George Foster Peabody Awards for television excellence. Fred Rogers readies the opening pitch to start the Pirates' season in 1988. (Post-Gazette archives)
1961 Second child, John, is born.
2003 Dies of stomach cancer at age
1998 Gets a star on the Hollywood Walk of Fame. The Pittsburgh Children's Museum opens a Mister Rogers exhibit.
1979 Production resumes on "Mister Rogers' Neighborhood."
请注意，字典是无序的。如果您需要订购，请使用OrderedDict。
有序字典就像字典一样容易完成：
import collections
parts = timeline.replace('\n','').split(" - ")
od = collections.OrderedDict()
for x in range(len(parts) - 1):
od[parts[x][-4:]] = parts[x + 1][:len(parts[x+1]) - 4]
使用这个：
for a in od:
print(a + " " + od[a])
结果将被订购：
1961 Second child, John, is born.
1963 Is ordained as a Presbyterian minister. Makes his on-camera debut as host of a series of 15-minute episodes for children produced in Toronto. The program is titled "Mister Rogers."
1964 Returns to Pittsburgh and turns his 15-minute show into the half-hour "Mister Rogers' Neighborhood."
1968 "Mister Rogers' Neighborhood" debuts on PBS and wins the first of its several Emmy Awards. Rogers is appointed chairman of the Forum on Mass Media and Child Development of the White House Conference on Youth.
1969 Wins the first of his two George Foster Peabody Awards for television excellence. Fred Rogers readies the opening pitch to start the Pirates' season in 1988. (Post-Gazette archives)
1971 Forms his production company, Family Communications Inc.
1975 Ceases production on "Mister Rogers' Neighborhood," which continues to air on PBS in reruns.
1978 Creates the PBS series "Old Friends, New Friends," focusing on older people.
1979 Production resumes on "Mister Rogers' Neighborhood."
1981 Eddie Murphy plays an inner-city children's show host in his "Mister Robinson's Neighborhood" sketch on "Saturday Night Live," which is probably the most famous of the many "Mister Rogers" spoofs.
1984 The Smithsonian Institution in Washington makes Fred Rogers' trademark sweater part of its permanent collection. Rogers forces the fast-food chain Burger King to remove ads featuring a Mister Rogers lookalike.
1987 Appears on a children's TV show in the Soviet Union and reciprocates by having a Soviet host appear on his show later in the year.
1989 "Mister Rogers' Neighborhood of Make Believe" opens as an attraction at Idlewild Park.
1990 Sues the Ku Klux Klan and forces the organization to stop playing racist telephone recordings featuring imitations of Fred Rogers' voice, speech patterns and theme song.
1991 Tapes spots for PBS on the eve of the Gulf War to reassure children that they will be all right if hostilities occur.
1996 TV Guide names Fred Rogers one of the 50 greatest TV stars of all time. Rogers makes his only appearance as someone other than himself when he takes a cameo role as a preacher on the drama series "Dr. Quinn, Medicine Woman," which he says is one of his favorite shows.
1997 Is honored for lifetime achievement by the National Academy of Television Arts and Sciences (who hand out the Emmy Awards) and by the Television Critics Association. Named Pittsburgher of the Year by Pittsburgh magazine.
1998 Gets a star on the Hollywood Walk of Fame. The Pittsburgh Children's Museum opens a Mister Rogers exhibit.
1999 Is inducted into the Television Hall of Fame.
2000 Unveils a planetarium show featuring "Neighborhood" characters at the Carnegie Science Center; ceases production on "Mister Rogers' Neighborhood."
2001 Last original episodes of "Mister Rogers' Neighborhood" airs on PBS.
2002 In July, is presented the Presidential Medal of Freedom, the nation's highest civilian honor. Filmed PBS public service announcements in August encouraging parents to read to their children and giving them advice on how to handle the first anniversary of the Sept. 11, 2001, terrorist attacks. Is named grand marshal of the Tournament of Roses Parade in Pasadena, Calif., with Bill Cosby and Art Linkletter. The theme: "Children's Wishes, Dreams and Imagination."
2003 Dies of stomach cancer at age