在Python中找到字符串中第一个重复的单词？
给定一个字符串。我们的任务是在给定的字符串中找到第一个重复的单词。要实现此问题，我们使用Python集合。从集合中，我们可以获得Counter()方法。
算法
Repeatedword(n) /* n is the string */ Step 1: first split given string separated by space into words. Step 2: now convert the list of words into a dictionary. Step 3: traverse list of words and check which the first word has frequency >1
范例程式码
# To Find the first repeated word in a string from collections
import Counter
def repeatedword(n):
# first split given string separated by space into words
w = n.split(' ')
con = Counter(w)
for key in w:
if con[key]>1:
print ("REPEATED WORD IS ::>",key)
return
# Driver program
if __name__ == "__main__":
n=input("Enter the String ::")
repeatedword(n)输出结果
Enter the String ::We are all peaceful soul and blissful soul and loveful soul happy soul REPEATED WORD IS ::> soul