Python program to print the reverse of a string that contains digits # function definition that will return# reverse string/digitsdefreverse(n):# to convert the integer value into strings=str(n)p=s[::-1]returnp# now, input an integer numbernum=int(input('Enter a positive value: '))# ...
```python class ListNode: def __init__(self, val=0, next=None): self.val = val self.next = next def reverse_linked_list(head): prev = None curr = head while curr: next_node = curr.next curr.next = prev prev = curr curr = next_node return prev # 测试 node1 = ListNode(1)...
>>> import string >>> string.digits #数字字符常量 '0123456789' >>> string.punctuation #标点符号常量 '!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~' >>> string.letters #python2.x中使用错误 Traceback (most recent call last): File "<stdin>", line 1, in <module> AttributeError: m...
>>> string_1 = "Camelot" >>> string_2 = "place" >>> print ("Let's not go to %s. 'Tis a silly %s." % (string_1, string_2)) Let's not go to Camelot. 'Tis a silly place. >>> 1. 2. 3. 4. 5. 逻辑运算符 (Logical Operators) x == y # Produce True if ... x ...
Python program to print words with their length of a string # Function to split into words# and print words with its lengthdefsplitString(str):# split the string by spacesstr=str.split(" ")# iterate words in stringforwordsinstr:print(words," (",len(words),")")# Main code# declare ...
程序段如下:ls=list(range(5))ls.append["Computer","Python"]ls.reverse()print(ls)print函数输出的结果()A.[['Computer','Python'],0,1,2,3,4]B.[4,3,2,1,0,['Computer','Python']]C.[['Computer','Python'],4,3,2,1,0]D.[0,1,2,3,4,['Computer','Python']] 相关知识点: ...
.reverse()这个方法的返回值就是空 一般使用的时候直接 list.reverse()print(list)就行 该
" 按退格键时可以一次删掉 4 个空格 set softtabstop=4 " insert tabs on the start of a line ...
首先,我们从django.http模块导入了HttpResponse类,以及Python的datetime库。 接着,我们定义了current_datetime函数。它就是视图函数。每个视图函数都使用HttpRequest对象作为第一个参数,并且通常称之为request。 注意,视图函数的名称并不重要;不需要用一个统一的命名方式来命名,以便让Django识别它。我们将其命名为current_...
Python 3.x. -> input() raw_input(): raw_input() asks the user for a string of data and simply returns the string, the string data ended with a newline). It can also take an argument, which is displayed as a prompt before the user enters the data. ...