Can strings be changed in Python3?

Can strings be changed in Python 3?

There is a method for changing strings: replace, for example:

a = 'lkjhgfdsa'
a.replace('l','123')'
123kjhgfdsa' #返回结果

As can be seen from the above example, str can also be changed. but! ! !

This change does not really change the original string, but is equivalent to creating a new string:

>>> a = 'lkjhgfdsa'
>>> b = a.replace('l','123')
>>> a
'lkjhgfdsa'
>>> b
'123kjhgfdsa'

From the above example, the value of a has not been changed. We copy the "modified" string to b. It can be seen that a and b are completely different.

Summary: Strings cannot be changed in Python 3. If you use the str.replace method to change a string, the original string will remain unchanged and a new changed string will be created.

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