1-p01_arg_trans-python基础_defm-优快云博客

本文深入探讨了Python中函数参数的多种使用方式，包括位置参数、关键字参数、不定长参数等，通过具体示例展示了参数传递的机制及注意事项。

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def m(a, b):
    print('in m')
    a = 100
    b = 200


x = 1
y = 2
m(x, y)
print(x, y)


def m2(a):
    a[0] = 100

x = [1, 2]
m2(x)
print(x)


def m3(*a):
    for v in a:
        print(v)

print('-' * 200)
m3(1, 2, 3, 'abc', 'def')
print('-' * 200)
m3(10, 20)


def m4(**a):
    for key in a:
        print(key, '=', a[key])
print('-' * 200)
m4(aa=123, bb=456, cc=True)


def m5(*a, **b):
    print('=' * 200)
    for v in a:
        print(v, end=',')
    print()
    print('-' * 200)
    for key in b:
        print(key, '=', b[key])

m5(1, 2, 3, True, False, aa='aaa', bb='bbb', cc='ccc')

x = [1, 2, 3, True, False]
y = {'aa': 'aaa', 'bb': 'bbb', 'cc': 'ccc'}
m5(*x, **y)在这里插入代码片

D:\Anaconda\python.exe D:/AI20/06_codes/deeplearning_20/p01_arg_trans.py
in m
1 2
[100, 2]
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1
2
3
abc
def
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
10
20
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
aa = 123
bb = 456
cc = True
========================================================================================================================================================================================================
1,2,3,True,False,
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
aa = aaa
bb = bbb
cc = ccc
========================================================================================================================================================================================================
1,2,3,True,False,
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
aa = aaa
bb = bbb
cc = ccc

Process finished with exit code 0
在这里插入代码片