Lec5-Environments

2024-10-12 77 words One minute

Contents

Environments

Nested Environments in Python

注意环境追溯的顺序，从内到外

Lambda Functions

函数式编程的核心思想是抽象和函数式编程，lambda函数是一种匿名函数，可以把函数作为参数传递给其他函数，或者作为返回值返回

1
2
3


f = lambda x: x + 1
print(f(1))  # Output: 2
print((lambda x: x + 8)(1))

和def函数的区别

Function Currying

Currying: transforming a multi-argument function into a single-argument, higher-order function.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10


def curry2(f):
    def g(x):
        def h(y):
            return f(x, y)
        return h
    return g

# Another example

curry2b = lambda f: (lambda x: (lambda y: f(x, y)))