# 默认sort是左小-右大,的return 1# 要排序大的,就右侧大的return 1defcompare(x, y):ifx > y:return1# 右边elifx < y:return-1else:return0defmax_number(nums): nums = [str(num)fornuminnums] nums.sort(key=cmp_to_key(compare))# nums.sort(
function [ 'fʌŋ k ʃən ] 功能,函数 method [ 'meθə d] 方法 result [ ri'zʌlt ] 结果 compare [ kəm' pεə ] 比较 temp [ tem p ] 临时工 null [nʌl] 空,无效的 exception [ ik 'sep ʃən] 异常 error [erə] 错误 index ['indeks] 角标,索引,指针 ...
在Python2中,sort()允许指定一个可选的函数,这个函数作为比较的用途被调用。这个函数必须带两个被用来比较的参数,然后返回一个值,如果小于是负数,如果相等是0,如果大于则返回正数。例如,我们可以这么做: >>>defnumeric_compare(x, y): ...returnx -y>>> sorted([5, 2, 4, 1, 3], cmp=numeric_compar...
继续使用上面的示例,我们使用cmp_to_key来实现相同的功能。 fromfunctoolsimportcmp_to_keydefcompare(person1,person2):ifperson1['name']==person2['name']:returnperson1['age']-person2['age']return(person1['name']>person2['name'])-(person1['name']<person2['name'])sorted_people_cmp=sorted...
compare_models() 函数的输出。Output from compare_models( ) function 默认使用 10 折交叉验证来评估指标，可以通过改变 fold 参数值来改变评估结果。默认使用精度值（由高到低）来分类 table，同样可以通过改变 sort 参数值来改变分类结果。 模型创建 在 PyCaret 的任何模块中，创建模型就像编写 create_model 一样...
def compare(x1, x2): if isinstance(x1, str): x1 = float(x1) if isinstance(x2, str): x2 = float(x2) return x1 - x2 nums = [3.9, 15, -1.2, 9, -21, 6.6, '-1', '2.4', '-3.3'] nums_sort = sorted(nums, key=functools.cmp_to_key(compare)) ...
vals.sort(key=lambda e: e[1]) print(vals) The example sorts the nested tuples initally by their first elements, then by their second. vals.sort(key=lambda e: e[1]) By providing an anonymous function which returns the second element of the tuple, we sort the tuples by their second...
sorted() function. It returns a new sorted list: (简单的排序仅仅通过调用sorted函数即可,他返回一个新的排好序的列表) >>>sorted([5,2,3,1,4])[1,2,3,4,5] 1. 2. list.sort() method of a list. It modifies the list in-place (and returns None to avoid confusion). Usually it's ...
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Python programforBitonic Sort.Note thatthisprogram works only when sizeofinput is a powerof2.""" from typingimportList defcomp_and_swap(array:List[int],index1:int,index2:int,direction:int)->None:"""Compare the value at given index1 and index2ofthe array and swap themasper ...