新南威尔士大学COMP9021 QUIZ1课业解析题意：巩固复习python中字典的相关知识解析：题目要求有4点，1补全print语句，统计mapping字典中元素的个数 ，2统计mapping字典中，没有值的键，存储在nonkeys列表中 ，3统计mapping字典中所有元素的值，存储在mapping_as_a_list列表中，4统计mapping字典中值唯一的元素，存储在one_to_one_part_of_mapping字典中 。spilt（）函数对用户输入的两个数按空格切分，arg_for_seed和upper_bound分别对应用户输入的第一和第二个数+1。for i in range(1, upper_bound)循环表示遍历mapping字典的元素（第一个元素除外）并赋值，每次循环调用randrange（）函数在规定范围内产生一个随机数，如果是正数则把它赋值给对应的字典元素。 统计字典元素个数可用len(mapping)，第二问和第三问则是对字典元素的操作，第四问则是列举一一映射的字典涉及知识点：python字典,列表更多可加微信讨论微信号：Alexa_aupdf
QUIZ 1COMP9021 PRINCIPLES OF PROGRAMMING$ python3 quiz_1.pyEnter two integers: 0 4The generated mapping is:{3: 1}The mappings’s so-called “keys” make up a set whose number of elements is 1.The list of integers between 1 and 4 that are not keys of the mapping is:[1, 2, 4]Represented as a list, the mapping is:[None, None, None, 1, None]The one-to-one part of the mapping is:{3: 1}$ python3 quiz_1.pyEnter two integers: 0 8The generated mapping is:{2: 4, 3: 8, 4: 7, 5: 7}The mappings’s so-called “keys” make up a set whose number of elements is 4.The list of integers between 1 and 8 that are not keys of the mapping is:[1, 6, 7, 8]Represented as a list, the mapping is:[None, None, 4, 8, 7, 7, None, None, None]The one-to-one part of the mapping is:{2: 4, 3: 8}Date: Term 3, 2019.$ python3 quiz_1.pyEnter two integers: 10 10The generated mapping is:{1: 8, 2: 8, 3: 8, 4: 10, 7: 10, 8: 9}The mappings’s so-called “keys” make up a set whose number of elements is 6.The list of integers between 1 and 10 that are not keys of the mapping is:[5, 6, 9, 10]Represented as a list, the mapping is:[None, 8, 8, 8, 10, None, None, 10, 9, None, None]The one-to-one part of the mapping is:{8: 9}$ python3 quiz_1.pyEnter two integers: 5 15The generated mapping is:{1: 10, 3: 7, 8: 13, 9: 10, 10: 7, 11: 15, 12: 3, 13: 2}The mappings’s so-called “keys” make up a set whose number of elements is 8.The list of integers between 1 and 15 that are not keys of the mapping is:[2, 4, 5, 6, 7, 14, 15]Represented as a list, the mapping is:[None, 10, None, 7, None, None, None, None, 13, 10, 7, 15, 3, 2, None, None]The one-to-one part of the mapping is:{8: 13, 11: 15, 12: 3, 13: 2}$ python3 quiz_1.pyEnter two integers: 23 16The generated mapping is:{1: 13, 2: 3, 3: 9, 9: 12, 10: 12, 12: 13, 13: 15, 15: 16, 16: 13}The mappings’s so-called “keys” make up a set whose number of elements is 9.The list of integers between 1 and 16 that are not keys of the mapping is:[4, 5, 6, 7, 8, 11, 14]Represented as a list, the mapping is:[None, 13, 3, 9, None, None, None, None, None, 12, 12, None, 13, 15, None, 16, 13]The one-to-one part of the mapping is:{2: 3, 3: 9, 13: 15, 15: 16}
