list_pratisce = [45,69,8,19,9]
n = len(list_pratisce)
for j in range(n):
    for i in range(n-1):
        if list_pratisce[i] > list_pratisce[i+1]:
            temp = list_pratisce[i]
            list_pratisce[i] = list_pratisce[i+1]
            list_pratisce[i+1] = temp
print(list_pratisce)

输出结果：
[8, 9, 19, 45, 69]

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