mirror of
https://github.com/LCTT/TranslateProject.git
synced 2025-01-07 22:11:09 +08:00
127 lines
4.2 KiB
Markdown
127 lines
4.2 KiB
Markdown
[#]: subject: "Input Function in Python: Concepts and Examples"
|
||
[#]: via: "https://www.debugpoint.com/input-function-python/"
|
||
[#]: author: "Arindam https://www.debugpoint.com/author/admin1/"
|
||
[#]: collector: "lkxed"
|
||
[#]: translator: "geekpi"
|
||
[#]: reviewer: " "
|
||
[#]: publisher: " "
|
||
[#]: url: " "
|
||
|
||
Input Function in Python: Concepts and Examples
|
||
======
|
||
|
||
**In this article, I will explain the basics of the Input function of Python with some easy-to-understand examples.**
|
||
|
||
![][1]
|
||
|
||
Python is one of the most popular programming languages in the world, and it is widely used in various applications. One of the basic concepts in Python is the `Input()` function, which allows users to interact with the program by providing input values.
|
||
|
||
Let’s find out the input function, how it works, and how you can use it effectively in your Python programs.
|
||
|
||
Before you start, I hope you have Python installed and set up a basic editor. If not, do refer to my below guides:
|
||
|
||
- [How to Install Python 3.11 on Ubuntu/Linux][2]
|
||
- [How to install Python on Windows][3]
|
||
- [How to set up the IDLE editor for Python][4]
|
||
|
||
### Python Input Function
|
||
|
||
The input function in Python is used to accept user input as a string. It prompts the user to enter a value and waits for the user to provide input. The user’s input is then stored as a string in a variable, which can be used later in the program.
|
||
|
||
#### Syntax
|
||
|
||
```
|
||
input("your message to user")
|
||
```
|
||
|
||
When you run the input function, it shows the message to the user and _waits_ for input. The cursor waits. Once the user enters input and presses enter, the input function reads the user’s input. The value is stored in the variable you specify.
|
||
|
||
Let’s see a few examples.
|
||
|
||
### Example 1: Simple Input function usage
|
||
|
||
The following code snippet takes input and shows the output with an additional string.
|
||
|
||
```
|
||
your_name = input("Enter your name:")print("Hello " + your_name)
|
||
```
|
||
|
||
**Output:**
|
||
|
||
```
|
||
Enter your name:arindamHello arindam
|
||
```
|
||
|
||
![Python Input function - a simple example][5]
|
||
|
||
Example 2: Taking input as integer and float
|
||
|
||
You can also convert the input as int() or float() at runtime while using input() function. Here is an example.
|
||
|
||
```
|
||
no_of_books = int(input("Enter total books ordered:"))
|
||
print ("Total number of books:", no_of_books)
|
||
|
||
price_of_each_book = float(input("Enter unit price:"))
|
||
print ("Total price:", no_of_books * price_of_each_book)
|
||
```
|
||
|
||
Output:
|
||
|
||
```
|
||
Enter total books ordered:5
|
||
Total number of books: 5
|
||
Enter unit price:10.1
|
||
Total price: 50.5
|
||
```
|
||
|
||
### Example 4: Joining lists
|
||
|
||
You can also use other functions, such as lists, to accept a set of values and convert them as [lists][6] in Python. Here’s an example which takes input and converts it to a list. Then used, another set of values and appended to the first list.
|
||
|
||
```
|
||
# take input for first list
|
||
list_1 = list(input("Enter numbers for list 1:"))
|
||
|
||
#take input for second list
|
||
list_2 = list(input("Enter some letters for list 2:"))
|
||
|
||
#loop through the second list and add to first list
|
||
for j in list_2:
|
||
list_1.append(j)
|
||
|
||
#print the modified first list
|
||
print(list_1)
|
||
```
|
||
|
||
**Output:**
|
||
|
||
```
|
||
Enter numbers for list 1:1234
|
||
Enter some letters for list 2:ABCD
|
||
['1', '2', '3', '4', 'A', 'B', 'C', 'D']
|
||
```
|
||
|
||
### Conclusion
|
||
|
||
I hope this simple guide clarifies the input() function with several examples. It’s a powerful function to accept values from standard input for simple use cases.
|
||
|
||
--------------------------------------------------------------------------------
|
||
|
||
via: https://www.debugpoint.com/input-function-python/
|
||
|
||
作者：[Arindam][a]
|
||
选题：[lkxed][b]
|
||
译者：[译者ID](https://github.com/译者ID)
|
||
校对：[校对者ID](https://github.com/校对者ID)
|
||
|
||
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
|
||
|
||
[a]: https://www.debugpoint.com/author/admin1/
|
||
[b]: https://github.com/lkxed/
|
||
[1]: https://www.debugpoint.com/wp-content/uploads/2023/03/pyinput.jpg
|
||
[2]: https://www.debugpoint.com/install-python-3-11-ubuntu/
|
||
[3]: https://www.debugpoint.com/install-python-windows/
|
||
[4]: https://www.debugpoint.com/install-idle-ubuntu-linux/
|
||
[5]: https://www.debugpoint.com/wp-content/uploads/2023/03/Python-Input-function-a-simple-example.jpg
|
||
[6]: https://docs.python.org/3/library/stdtypes.html?highlight=list#lists |