str

split()

str1 = '我爱你,你爱我,我不爱他,他不爱我'

result = str1.split('爱')

print(result)

join()

list1 = ['王菲','卡扎菲','咖啡','刘亦菲','双飞']

result = '★'.join(list1)

print(result)

replace()

str1 = '今天晚上有饭局,今天晚上有好梦,今天晚上有作业,今天晚上不睡觉!'

result = str1.replace('今天','today')

print(result)

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