How can we exchange values using Python?

A common method in Python for swapping two values is to use a temporary variable. The specific steps are as follows:

1. Declare two variables, a and b, and assign them the values that need to be swapped.
2. Create a temporary variable temp and assign the value of a to it.
3. Assign the value of b to a.
4. Assign the value of temp to b.

Here is an example code:

a = 5
b = 10

temp = a
a = b
b = temp

print("交换后的a值为：", a)
print("交换后的b值为：", b)

Running the above code will produce the following output:

交换后的a值为： 10
交换后的b值为： 5

By this method, the values of a and b will be successfully exchanged.