# 定义一个包含重复值的字典
dictionary = {"a": 1, "b": 2, "c": 2, "d": 3}

# 将字典的所有值转换为集合
values_set = set(dictionary.values())

# 检查集合的长度
if len(values_set) == len(dictionary.values()):
    print("字典中的值唯一")
else:
    print("字典中存在重复值")

字典中存在重复值

# 定义一个包含重复值的字典
dictionary = {"a": 1, "b": 2, "c": 2, "d": 3}

# 通过创建一个新字典来删除重复项
unique_dictionary = {key: value for key, value in dictionary.items()}

# 输出新字典
print(unique_dictionary)

{'a': 1, 'b': 2, 'd': 3}

# 定义一个包含重复值的字典
dictionary = {"a": 1, "b": 2, "c": 2, "d": 3}

# 合并重复项为单个值
merged_dictionary = {}
for key, value in dictionary.items():
    if value not in merged_dictionary.values():
        merged_dictionary[key] = value

# 输出新字典
print(merged_dictionary)

{'a': 1, 'b': 2, 'd': 3}

# 定义一个包含重复值的字典
dictionary = {"a": 1, "b": 2, "c": 2, "d": 3}

# 方法一：通过删除重复项创建新字典
unique_dictionary_1 = {key: value for key, value in dictionary.items()}
print(unique_dictionary_1)

# 方法二：通过合并重复项创建新字典
unique_dictionary_2 = {}
for key, value in dictionary.items():
    if value not in unique_dictionary_2.values():
        unique_dictionary_2[key] = value
print(unique_dictionary_2)

{'a': 1, 'b': 2, 'd': 3}
{'a': 1, 'b': 2, 'd': 3}