关于set的添加元素和删除元素的问题！
求大佬看看哪里错了！# Use the set f_suburbs as given as your starting point. Then,
# 1. Remove all suburbs that don't start with a F
# 2. Ensure that the suburbs listed below are in your set
# Fairfield
# Fairfield East
# Fairfield Heights
# Fairfield West
# Fairlight
# Fiddletown
# Five Dock
# Flemington
# Forest Glen
# Forest Lodge
# Forestville
# Freemans Reach
# Frenchs Forest
# Freshwater
f_suburbs = {"Randwick", "Kensington", "Frenchs Forest", "Flemington"}
f_suburbs.remove("Randwick")
f_suburbs.remove("Kensington")
f_suburbs.extend{'Frenchs Forest', 'Flemington', 'Freshwater', 'Fairfield West', 'Five Dock', 'Fairfield Heights', 'Fairfield', 'Forest Lodge', 'Fairlight', 'Fairfield East', 'Freemans Reach', 'Forest Glen', 'Fiddletown', 'Forestville'}
print(f_suburbs) 本帖最后由 isdkz 于 2023-3-1 21:59 编辑
集合没有 extend 方法，你可以用 |= 或者 update 来扩展集合，而且使用方法不要把小括号漏掉了：
f_suburbs = {"Randwick", "Kensington", "Frenchs Forest", "Flemington"}
f_suburbs.remove("Randwick")
f_suburbs.remove("Kensington")
f_suburbs |= {'Frenchs Forest', 'Flemington', 'Freshwater', 'Fairfield West', 'Five Dock', 'Fairfield Heights', 'Fairfield', 'Forest Lodge', 'Fairlight', 'Fairfield East', 'Freemans Reach', 'Forest Glen', 'Fiddletown', 'Forestville'}
print(f_suburbs)
或
f_suburbs = {"Randwick", "Kensington", "Frenchs Forest", "Flemington"}
f_suburbs.remove("Randwick")
f_suburbs.remove("Kensington")
f_suburbs.update({'Frenchs Forest', 'Flemington', 'Freshwater', 'Fairfield West', 'Five Dock', 'Fairfield Heights', 'Fairfield', 'Forest Lodge', 'Fairlight', 'Fairfield East', 'Freemans Reach', 'Forest Glen', 'Fiddletown', 'Forestville'})
print(f_suburbs)
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