SoFunction
Updated on 2024-12-19

Specific use of Python's built-in function int

In Python programming, theint()function is a basic and powerful built-in function that is used to convert a string or number to an integer. This function is very important for data type conversion, especially when you need to convert user input or other data formats to integers for calculations.

function function

int()The main function of the function is to convert the given object to an integer. If no arguments are provided, theint()will return 0. If the parameter is a number or a string in numeric format, theint()will convert it to an integer.

function syntax

int(x=0)
int(x, base=10)
  • x: A number or string to be converted to an integer.
  • base: The decimal system of the number, defaulting to 10 for decimal. It can also be 0 or any integer between 2 and 36.

return value

The function returns an integer, the converted integer value.

sample code (computing)

Let's go through some examplesint()How functions work:

# Basic usage
print(int())  # Output: 0
print(int(3.6))  # Output: 3
print(int('12'))  # Output: 12

# Conversion
print(int('1010', 2))  # Output: 10
print(int('0x1a', 16))  # Output: 26

# Use of variables
num_str = '100'
print(int(num_str))  # Output: 100

In the example above, we can see that theint()function how to convert different types of arguments to integers. We also show how to use thebaseparameter to do the conversion.

caveat

  • If the incoming string cannot be converted to an integer, theint()function raises aValueError。
  • For floating point numbers, theint()Downward rounding is performed, i.e., the fractional part is discarded.

reach a verdict

int()Functions are a very useful tool in Python that provide a quick way to convert strings or numbers to integers. Whether in data processing or in user input validation, theint()It all comes in handy.

to this article on the specific use of Python built-in function int () article is introduced to this, more related Python int () content, please search my previous posts or continue to browse the following related articles I hope you will support me in the future!