[英]How to print one Attribute in a class in Python?
只是我有一个 class 具有在 class 示例中打印特定属性的方法:
class Attr:
def __init__(self, name,
wattage):
self.name = name
self.wattage = wattage
def print_attr(self):
print("attribute in class is " + getattr(Attr, wattage)
预期的 output 是:
attribute name is wattage: test
为此,您不需要帮助器 function,Python 没有受限访问。 只需直接访问属性:
a = Attr("Name", 10)
print(a.wattage)
如果你真的想做这样的打印方法,有两种方法:
class Attr:
def __init__(self, name, wattage):
self.name = name
self.wattage = wattage
def print_wattage(self):
print(f'Wattage in *instance* is {getattr(self, "wattage")}') # getattr gets by string name
def print_name(self):
print(f"Name in *instance* is {self.name}")
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