方法一:使用reverse()方法 #创建一个arrayarray = [1, 2, 3, 4, 5]#使用reverse()方法倒序arrayarray.reverse()#打印倒序后的arrayprint(array) 1. 2. 3. 4. 5. 6. 7. 8. 方法二:使用切片[::-1] #创建一个arrayarray = [1, 2, 3, 4, 5]#使用切片[::-1]倒序arrayreversed_array = ar...
2 在Python项目中,新建并打开一个空白的python文件(比如:test.py)。3 在python文件编辑区中,输入:“from array import *”,导入 array 模块内容。4 插入语句:“arr = array('u', 'EDCBA')”,点击Enter键。5 插入语句:“arr.reverse()”,点击Enter键。6 再输入:“print(ar...
To reverse an array in Python using NumPy, various methods such as np.flip(), array slicing, and np.ndarray.flatten() can be employed. np.flip() reverses elements along a specified axis, array slicing offers a simple syntax for reversing, while flipud() and fliplr() flip arrays vertically...
>>a = np.array([("Mike",21),("Nancy",25),("Bob", 17), ("Jane",27)], dtype = dt) >>np.sort(a, order = 'name') array([(b'Bob', 17), (b'Jane', 27), (b'Mike', 21), (b'Nancy', 25)], dtype=[('name', 'S10'), ('age', '<i4')]) >>np.sort(a, order...
三、数据合并——array、list、tuple 代码语言:javascript 代码运行次数:0 运行 AI代码解释 a=[]#append a.append([1,2])#insert a.insert(2,1)a.insert(2,[1,2]) append加在后面,insert(位置,内容)可以加在指定位置。如果是 元组+list,都可以通过append/insert合并起来。
7.how do I iterate over a sequence in reverse order for x in reversed(sequence): … # do something with x.. 如果不是list, 最通用但是稍慢的解决方案是: for i in range(len(sequence)-1, -1, -1): x = sequence[i] 8.Python是如何进行类型转换的?
| Read n objectsfromthe file object fandappend them to the end of the|array. Also called as read.| |•remove(...)|remove(x)#删除指定元素,x为需要删除的元素.| Remove the first occurrence of xinthe array.| |reverse(...)|reverse()| ...
reverse()Reverses the order of the list sort()Sorts the list Note:Python does not have built-in support for Arrays, but Python Lists can be used instead. Exercise? Python Lists can be used as arrays. What will be the result of the following code: ...
最常见的可变的序列是list,此外还有bytearray、array.array、collections.deque以及memoryview。 最常见的不可变的序列是tuple、str和bytes。 下图显示了可变(MutableSequence)和不可变序列(Sequence)之间的关系: 如果不太好记忆的话,我们可以这样看:不可变序列只能包含一些只读的方法和属性,而可变序列自然包含很多可写的方...
self._siftdown(largest)#堆堆倒叙排序defheapsort_reverse(array): length=len(array) maxheap=MaxHeap(length) l=[]foriinrange(length): maxheap.add(i)foriinrange(length): l.append(maxheap.extract())returnldeftest_max_heap():importrandom ...