Higher Order Functions

Control Statements vs Functions

all params will be evaluated before the function is called ! 不存在跳过参数的情况

Assertions in Python

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assert condition, message

Returning a Function from a Function

带参数的修饰器 😮

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def make_adder(n):
    def adder(x):
        return x + n
    return adder

# Example usage
add_three = make_adder(3)
print(add_three(4))  # Output: 7, WHY?

functions in Python are first-class values!