substring5 = my_string[::2] # Returns "srbyeal" 7. Slice with Negative Indices When using slice notation, negative indices can be used to specify the start and end points of the slice. A negative index forstartindicates that the slice should start from the end of the sequence, and a ...
We can reverse a string using slicing by providing the step value as -1. s = 'HelloWorld' reverse_str = s[::-1] print(reverse_str) Output:dlroWolleHLet’s look at some other examples of using steps and negative index values. s1 = s[2:8:2] print(s1) Output:looHere the substring...
You have worked hard to learn how to perform string slicing using the colon‘:’inside the square brackets[]. However, there is a reward to pay off your hard work: you can specify the negative index to extract the substring in the backward direction of the string. That means if you want...
[a:b:c]len = length of string, tuple or list c– default is +1. The sign of c indicates forward or backward, absolute value of c indicates steps. Default is forward with step size 1. Positive means forward, negative means backward. a– When c is positive or blank, default is 0. ...
So s at index 0 is going to be the value "a." s at index 1 is going to be the value "b," and so on and so on. And we can also do negative indexing, as well. I added this in here. If you do try to index into a string beyond the limits of the string-- and we can ...
my_list = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] slicing = slice(-4, None) print(my_list[slicing]) # [4, 5, 6] print(my_list[-3]) # 4 使用slice()做切片任务。 string = "Data Science" slice_object = slice(5, None) print(string[slice_object]) # Science ▍75、计算元素...
You can also use a negative step in the slicing syntax for Python: Python In [7]: arr_2[:2:-1] Out[7]: array([6, 5, 4]) In this code, you are not specifying the start index of the slice, you are specifying the stop value should be index 2, and the step should be -...
string ='STUDYTONIGHT' # Using slice() s1 = slice(2, 10, 2) #new string print("String slicing- ", string[s1]) String slicing- UYOI Example: String Slicing Using slice() Method The below example takes three negative indexes. Negative indexes are usually for traversing the string in rever...
This function takes a string as input and returns its reverse using slicing ([::-1]). Example: Python 1 2 3 4 5 6 7 8 # Function to reverse a string def reverse_string(s): return s[::-1] print(reverse_string("intellipaat")) Output: Explanation: Here, [::-1] returns the ...
Lists are one type of sequence, just like strings but they do have their differences. 如果我们比较字符串和列表,一个区别是字符串是单个字符的序列, If we compare a string and a list, one difference is that strings are sequences of individual characters, 而列表是任何类型Python对象的序列。 wherea...