Python代码:
PeoplesNames = []
while len(PeoplesNames) < 3:
person = input('Enter your name: ')
PeoplesNames.append(person)
print PeoplesNames
if 'Dan' in PeoplesNames:
PeoplesNames.pop('Dan')
print PeoplesNames
根据我的理解,这应该通过while循环(它执行)直到列表达到3的长度(它确实)然后打印列表(它做)然后点击if语句并从列表中删除dan然后打印新列表(它没有) 我是否需要嵌套if语句或其他内容? 感谢
答案 0 :(得分:2)
list.pop() #used to pop out the top of the stack(list) or
list.pop(index) #can be an index that needed to be pop out, but
list.remove(item) # removes the item specified
尝试使用以下解决方案
if 'Dan' in PeoplesNames:
PeoplesNames.remove('Dan')
print PeoplesNames
答案 1 :(得分:1)
或 - 记住EAFP - 您可以:
PeoplesNames = [];
while len(PeoplesNames) < 3:
person = raw_input('Enter your name: ')
PeoplesNames.append(person)
print PeoplesNames
try:
PeoplesNames.remove('Dan')
except ValueError:
pass
print PeoplesNames
另请注意,在python 2.7
中,您需要使用raw_input()
代替input()
。