如何用用户输入的单词替换用户输入的句子。 str对象不可调用

问题描述

sentence = input ('Please enter a sentce: ')
change = input ('What word do you want to change: ')
replace = input ('What do you want to replace it with: ')
n_s = replace(change,replace)
print (n_s)

我已经知道了，但是当我运行它时说

n_s = replace(change,replace) TypeError:'str' object is not callable

sentence = input ('Please enter a sentce: ')
change = input ('What word do you want to change: ')
replace = input ('What do you want to replace it with: ')
n_s = sentence.replace(change,replace)
print(n_s)

#output:
Please enter a sentce: hello world bye
What word do you want to change: bye
What do you want to replace it with: bye-bye
hello world bye-bye

方法replace（）返回字符串的副本，在该字符串中，已出现的旧内容已被新内容替换，可以选择将替换次数限制为最大。

语法： str.replace(old, new[, max])

• old-这是要替换的旧子字符串。
• new-这是新的子字符串，它将替换旧的子字符串。
• max-如果给出此可选参数max，则仅替换第一个出现的次数。

这是针对python 3的更正代码。请注意，print语句之前的最后一行的语法为n_s = statement.replace（change，replace）

sentence = input ('Please enter a sentce: ')
change = input ('What word do you want to change: ')
replace = input ('What do you want to replace it with: ')
n_s = sentence.replace(change,replace)
print (n_s)