python3集合操作

Beatles_Discography = {"Please Please Me": 1963, "With the Beatles": 1963,
"A Hard Day's Night": 1964, "Beatles for Sale": 1964, "Twist and Shout": 1964,
"Help": 1965, "Rubber Soul": 1965, "Revolver": 1966,
"Sgt. Pepper's Lonely Hearts Club Band": 1967,
"Magical Mystery Tour": 1967, "The Beatles": 1968,
"Yellow Submarine": 1969 ,'Abbey Road': 1969,
"Let It Be": 1970}

for album_title in Beatles_Discography:
print("title: {}, year: {}".format(album_title, Beatles_Discography[album_title]))