[英]Python3 - replace string require if statement?
I just want to replace 'dog'
with anything! 我只想用任何东西代替'dog'
!
Think I need an if statement but can't get one that makes sense: 想想我需要一个if语句,但不能得到一个有意义的语句:
wordlist = ['cat','dog','rabbit','test',]
letterlist = []
for aword in wordlist:
aword.replace('dog', 'OMG IT WORKED? OR NOT')
print (aword)
letterlist.append(aword)
print(letterlist)
str.replace()
returns a new string ; str.replace()
返回一个新字符串 ; you want to rebind aword
to it: 您想重新绑定aword
:
aword = aword.replace('dog', 'OMG IT WORKED? OR NOT')
str
is an immutable type; str
是不可变的类型; you can only produce a new value with changes, not change the value itself. 您只能通过更改产生一个新值,而不能更改值本身。
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