python排序方法实例分析

>>> def my_key1(x):...   return x % 10...>>> alist = [4, 5, 8, 1, 63, 8]>>> alist[4, 5, 8, 1, 63, 8]>>> alist.sort() # 默认升序排序>>> alist[1, 4, 5, 8, 8, 63]>>> alist.sort(reverse = True) # 改为降序排序>>> alist[63, 8, 8, 5, 4, 1]>>> alist.sort(key = my_key1) # 设置排序的key值>>> alist[1, 63, 4, 5, 8, 8]>>>>>> def my_key2(x):...   return x[1]...>>> alist = [(5,'a'),(1,'w'),(2,'e'),(6,'f')]>>> alist.sort(key = my_key2) # 根据每个元组的第二分量进行排序>>> alist[(5, 'a'), (2, 'e'), (6, 'f'), (1, 'w')]>>>