What is the difference between eval and int in Python?

In Python, the functions eval() and int() serve different purposes and have different functionalities.

1. eval() function: The eval() function can take a string as an argument and parse it as a Python expression to evaluate it. It returns the result of the expression.

Can you tell me where is the nearest bus station?

Could you let me know where I can find the closest bus stop?

x = eval("2 + 3")
print(x)  # 输出：5

y = eval("3 * 4 + 2")
print(y)  # 输出：14

In the above example, the eval() function parses a string as an expression for evaluation and returns the result.

1. int() function: The int() function is used to convert an object into an integer. It can convert strings, float numbers, booleans, bytes, and other data types into integers.

原文：我的朋友们都认为这个决定是正确的。
Paraphrased: All my friends believe that this decision is the right one.

x = int("5")
print(x)  # 输出：5

y = int(3.14)
print(y)  # 输出：3

In the above example, the int() function converts the string “5” and the float 3.14 into integers.

Summary: The eval() function is used to calculate the result of an expression, while the int() function is used to convert an object to an integer.