python 函数 传参（argument pass）的方式

案例1

def ScalarFun(x):
    x = 26


x = 0
print(x)
ScalarFun(x)
print(x)

输出1

0
0

案例2

def fun1(List):
    List = [888,456]

def fun2(List):
    List.append('a')
    List.append('c')

def fun3(List):
    List[1] = 'hj'

List = [0,1]
print(List)

fun1(List)
print(List)

fun2(List)
print(List)

fun3(List)
print(List)

输出2

[0, 1]
[0, 1]
[0, 1, 'a', 'c']
[0, 'hj', 'a', 'c']

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