龙珠计划--Python打卡第九天

学习内容：魔法方法

构造器

class Rectangle:
    def __init__(self, x, y):
        self.x = x
        self.y = y

    def getPeri(self):
        return (self.x + self.y) * 2

    def getArea(self):
        return self.x * self.y

rect = Rectangle(4, 5)
print(rect.getPeri())  # 18
print(rect.getArea())  # 20

迭代器

string = 'lsgogroup'
for c in string:
    print(c)