在变量y
中,我只想调用第二个值,即age
,同时将第一个值(height
)保留为默认值。我该怎么办?
class person():
def __init__(self, height=130, age=20):
self.height = height
self.age = age
def convert_height(self):
return self.height / 10
def find_birth_year(self, p_year):
return p_year - self.age
x = person(170)
y = person(, 32) # How to have default value for height here?
print(x.height, x.age)
print(y.height, y.age)
print(x.convert_height(), x.find_birth_year(2020))
print(y.convert_height(), y.find_birth_year(2020))
答案 0 :(得分:2)
您可以使用keyword
参数:使用其名称及其在方法中的位置
class person():
def __init__(self, height=130, age=20):
self.height = height
self.age = age
if __name__ == '__main__':
x = person(170)
y = person(age=32)
这里是some more
答案 1 :(得分:0)
使用关键字参数:
const result = moment(date).isSame(moment().subtract(1, 'day'), "day")