Python OOP - practice_1

class Student(object):
    
    def __init__(self, name, age, scores):
        self.name = name
        self.age = age
        self.scores = scores
        
    def get_name(self):
        return self.name
    
    def get_age(self):
        return self.age
    
    def get_course(self):
        return max(self.scores)
    
zz = Student("aa", 18, [80, 100, 90])
print(zz.get_name())
print(zz.get_age())
print(zz.get_course())

aa

18

100

class DictClass(object):
    
    def __init__(self, dict):
        self.dict = dict
        
    def del_dict(self, key):
        # 判断key是否在字典里
        if key not in self.dict.keys():
            return "key不在字典里"
        else:
            self.dict.pop(key)
            return "删除成功"
        
    def get_dict(self, key):
        if key not in self.dict.keys():
            return "not found"
        else:
            return self.dict[key]
        
    def get_key(self):
        return self.dict.keys()
    
    def updata_dict(self, dict2):
        self.dict = dict(self.dict, **dict2)
        return self.dict.values()
            
d = DictClass({"a":1, "b":2})
print(d.get_key())
print(d.updata_dict({"c":3}))
print(d.del_dict("a"))
print(d.get_dict("b"))

dict_keys(['a', 'b'])

dict_values([1, 2, 3])

删除成功

2

class ListInfo(object):
    def __init__(self, list_val):
        self.list = list_val
        
    def add_key(self, key_name):
        # 添加的key必须是数字或者字符串
        if isinstance(key_name, (str, int)): 
            self.list.append(key_name)
            print(self.list)
            return "OK"
        else:
            return "我要字符串或者数字"
    def get_key(self, index):
        # 判断传入的索引是否超出了列表
        if index >= 0 and index < len(self.list):
            return self.list[index]
        return "你输入的太多了！"
    
    def updata_list(self, new_list):
        self.list.extend(new_list)
        return self.list
    
    def del_key(self):
        # 首先要判断我们的列表里面是否还有元素
        if len(self.list) >= 0:
            return self.list.pop(-1)
        else:
            return "列表是空的"
            
list_info = ListInfo([1, 2, 3, 4, 5])

print(list_info.add_key([1,2]))
print(list_info.get_key(999))
print(list_info.get_key(3))
print(list_info.updata_list([8, 9, 10]))
print(list_info.del_key())

我要字符串或者数字

你输入的太多了！

4

[1, 2, 3, 4, 5, 8, 9, 10]

10

class SetInfo(object):
    def __init__(self, my_set):
        self.sett = my_set
        
    def add_setinfo(self, keyname):
        self.sett.add(keyname)
        return self.sett
    
    def get_intersection(self, unioninfo):
        if isinstance(unioninfo, set):
            return self.sett & unioninfo
        else:
            return "你传入的不是set"
    
    def get_union(self, unioninfo):
        if isinstance(unioninfo, set):
            return self.sett | unioninfo 
        return "你传入的不是set"
    
    def del_difference(self, unioninfo):
        if isinstance(unioninfo, set):
            return self.sett - unioninfo
        return "你传入的不是set"

A = set([1, 2, 3, 4, 5])    
B = set([5, 6, 3, 8])
my_set = SetInfo(A)
print(my_set.add_setinfo(6))
print(my_set.get_intersection(B))
print(my_set.get_union(B))
print(my_set.del_difference(B))
print(my_set.get_union("123"))

{1, 2, 3, 4, 5, 6}

{3, 5, 6}

{1, 2, 3, 4, 5, 6, 8}

{1, 2, 4}

你传入的不是set