浅拷贝如何在Python的字典中使用字典？

# 创建原始字典
original_dict = {"key1": "value1", "key2": "value2", "key3": "value3"}

# 使用copy()方法进行浅拷贝
new_dict = original_dict.copy()

# 修改原始字典的值
original_dict["key1"] = "new value"

print(original_dict)  # 输出: {"key1": "new value", "key2": "value2", "key3": "value3"}
print(new_dict)  # 输出: {"key1": "value1", "key2": "value2", "key3": "value3"}

# 创建原始字典
original_dict = {"key1": "value1", "key2": "value2", "key3": "value3"}

# 使用字典解析式进行浅拷贝
new_dict = {key: value for key, value in original_dict.items()}

# 修改原始字典的值
original_dict["key1"] = "new value"

print(original_dict)  # 输出: {"key1": "new value", "key2": "value2", "key3": "value3"}
print(new_dict)  # 输出: {"key1": "value1", "key2": "value2", "key3": "value3"}