<1> 對返回的資料直接拆包
def get_my_info():
high = 178
weight = 100
age = 18
return high, weight, age

#result = get_my_info()
#print(result)

my_high, my_weight, my_age = get_my_info()
print(my_high)
print(my_weight)
print(my_age)
總結：
拆包時要注意，需要拆的資料的個數要與變數的個數相同，否則程式會異常
除了對元組拆包之外，還可以對列表、字典等拆包

  In [17]: a, b = (11, 22)
  In [18]: a
  Out[18]: 11
  In [19]: b
  Out[19]: 22

  In [20]: a, b = [11, 22]
  In [21]: a
  Out[21]: 11
  In [22]: b
  Out[22]: 22

  In [23]: a, b = {"m":11, "n":22}  # 取出來的是key，而不是鍵值對
  In [24]: a
  Out[24]: 'm'
  In [25]: b
  Out[25]: 'n'
 

<2> 交換2個變數的值
#第1種方式
#a = 4
#b = 5
#c = 0

#c = a
#a = b
#b = c

#print(a)
#print(b)

#第2種方式
#a = 4
#b = 5
#a = a+b # a=9, b=5
#b = a-b # a=9, b=4
#a = a-b # a=5, b=4
#print(a)
#print(b)

#第3種方式
a, b = 4, 5
a, b = b, a

print(a)
print(b)