Web1. Write a Python Program to calculate the age by. taking year of birth as input. 2. Write a Python Program to compute your weight. in pounds by accepting your weight in kilogram. 3. using input function. Write a Python Program to create, concatenate. and accessing sub string and print the given string. WebIn Python indexing of strings starts from 0 till n-1, where n is the size of string. So characters in string of size n, can be accessed from 0 to n-1. Suppose we have a string i.e. Copy to clipboard sampleStr = "Hello, this is a sample string" Let’s access character at 5th index i.e. Advertisements Copy to clipboard sampleStr[5]
Using a Negative Index with a Python String - DevCamp
WebAug 5, 2024 · Python has an in-built feature called “negative indexing “, which is used to select and print the desired part of an iterable in reverse order. Hence, negative indexing is also called " reverse indexing”. The numerical values for negative indexing do not start with zero, and they start with " -1 ". WebAug 9, 2024 · Using a negative number as an index in the slice method is called Negative slicing in Python. It returns the nth element from the right-hand side of the list (as opposed to the usual left-hand side). Python supports using negative numbers to index into a string: -1 means the last char, -2 is the next to last, and so on. fooice破解
Reverse Indexing in Python? - Stack Overflow
WebIn Python, you can start indexing from the end of an iterable. This is known as negative indexing. last = list_items[-1] For example, let’s get the last value of a list: numbers = [1, 2, 3, 4, 5] last = numbers[-1] print(last) Output: 5 Here is an illustration of how the list indexing works in Python: WebThe other feature is that start or stop may be a negative number, which means it counts from the end of the array instead of the beginning. So: a [-1] # last item in the array a [-2:] # last two items in the array a [:-2] # everything except the last two items Similarly, step may be a negative number: WebApr 27, 2024 · A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. electric wall strips