现在我知道已有一些关于这个主题的报道,但我无法理解。我会告诉你我的代码,我希望这可以帮助你了解我的目标。
词典
father = {"Yin": ["yang","yaha"]}
此代码工作正常。
elif choice == "5":
son = input("Enter the name of a son to get the name of his grandfather: ")
if son in father:
description = father[son]
print("\n", son, "'s grandfather is", description[1])
else:
print("\nSorry, I don't know who that is", son)
此代码没有,我只是希望它能够更改列表中的第二项(yaha)。
elif choice == "6":
son = input("which grandfather and son pair need updating: ")
if son in father:
description = input("What's name of the grandfather?: ")
son[father] = description[1]
print("\n", son, "has been redefined.")
else:
print("\nThat person doesn't exist! Try adding it.")
任何帮助都将不胜感激。
答案 0 :(得分:5)
我认为你的意思是
father[son][1] = description
在第二个片段中。
说明:
father
是一个字典,son
是一个字符串,因此son[father]
会引发AttributeError
。description
也是一个字符串,因此description[1]
是一个字符。另一方面,father[son]
是一个列表,您可以将其元素分配给新字符串。答案 1 :(得分:0)
description = input("What's name of the grandfather?: ")
son[father] = description
因为description是一个字符串