To loop in the reverse direction, you can use Python's built-in reversed function:>>> colors = ["purple", "blue", "green", "pink", "red"] >>> for color in reversed(colors): ... print("I like", color) ... I like red I like pink I like green I like blue I like ...
>>> "".join(sorted(vowels, reverse=True)) 'uoiea' 在此代码片段中,您调用.join()了一个空字符串,它扮演着分隔符的角色。参数 to.join()是调用sorted()withvowels作为参数并reverse设置为 的结果True。 您还可以利用sorted()以排序和反向顺序遍历字符串: >>> >>> for vowel in sorted(vowels, reverse...
Python string library does’nt support the in-built “reverse()” as done by other python containers like list, hence knowing other methods to reverse string can prove to be useful. This article discusses several ways to achieve it. Using loop # Python code to reverse a string # using loop...
forkeyinreversed(my_dict):print(key,my_dict[key]) 1. 2. 上面的代码会倒序输出字典中的键值对,结果如下: orange 1 banana 3 apple 2 1. 2. 3. 使用sorted()函数 另一种方法是使用sorted()函数,它可以对字典中的键进行排序。默认情况下,sorted()函数会按照键的升序排列,但通过指定reverse=True参数可...
for char in string:reversed_str=char+reversed_str return reversed_str reversed_string=reverse_string_loop(string) print(reversed_string)#'!dlrow,olleH' #反转字符串方法3:递归 def reverse_string_recursion(string):if len(string)==0:return string ...
在此代码片段中,您调用.join()了一个空字符串,它扮演着分隔符的角色。参数 to.join()是调用sorted()withvowels作为参数并reverse设置为 的结果True。 您还可以利用sorted()以排序和反向顺序遍历字符串: 深色代码主题 复制 >>>forvowelinsorted(vowels, reverse=True):...print(vowel)...u o i e ...
使用reverse(): $python-mtimeit-n1000000-s'importnumpyasnp''mylist=list(np.arange(0,200))''mylist.reverse()'1000000loops,bestof5:10.7usecperloop 这两种方法都可以反转列表,但需要注意的是内置函数reverse()会更改原始列表,而切片方法会创建一个新列表。
Loopover your strings in reverse order Sort your strings in descending order usingsorted() Even though this topic might not have many exciting use cases by itself, understanding how to reverse strings can be useful in coding interviews for entry-level positions. You’ll also find that mastering...
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defreverse(data):forindexinrange(len(data)-1,-1,-1):yielddata[index]forcharinreverse('giraffe'):print(char) 生成器表达式 生成器表达式是列表推导式的语法糖,用于创建生成器而不是列表。 squares=(x**2forxinrange(10))print(next(squares)) ...