python 判断字典是否有这个属性
在 Python 中,可以使用 in 关键字来判断字典中是否存在某个属性。具体实现方法如下:
my_dict = {"name": "Tom", "age": 18}
if "name" in my_dict:
print("my_dict has the attribute 'name'")
else:
print("my_dict does not have the attribute 'name'")
if "gender" in my_dict:
print("my_dict has the attribute 'gender'")
else:
print("my_dict does not have the attribute 'gender'")
输出结果为:
my_dict has the attribute 'name'
my_dict does not have the attribute 'gender'
其中,第一个 if 语句判断字典 my_dict 中是否存在属性 "name",由于存在,因此输出 "my_dict has the attribute 'name'";第二个 if 语句判断字典 my_dict 中是否存在属性 "gender",由于不存在,因此输出 "my_dict does not have the attribute 'gender'"
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