## 拆包、交換變量的值 ### 1\. 對返回的數據直接拆包 ~~~ 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，需要拆的數據的個數要與變量的個數相同，否則程序會異常 * 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個變量的值 ~~~ # 第3種方式 a = 4 b = 5 a, b = b, a print(a) print(b) ~~~