函数之间传递list：
def show(ll):
for i in ll:
print(i)
show(['chen','hang','wang','yadan'])
#==========================================
chen
hang
wang
yadan
*args：输入数据长度不确定，通过*args将任意长度的参数传递给函数，系统自动将任意长度参数用list（tuple定长，特殊的list）表示
def show(*args):
for i in args:
print(i)
show('chen','hang','wang','yadan')
#=============================================
chen
hang
wang
yadan
**kargs：输入数据长度不确定，系统自动将任意长度参数用dict（字典）表示
def show(**kargs):
for i in kargs.items():
print(i)
show(name='hangge',age=25,sex='man',school='wust')
#============================================
('name', 'hangge')
('school', 'wust')
('sex', 'man')
('age', 25)
函数之间传递dict：
def show(**kargs):
.....
user={‘chen’:1,'hang':2,'wangyadan':3}
show(**user)