Classwork 8

20241105/0/1.py

@@ -0,0 +1,11 @@
+class Rectangle:
+    def __init__(self, x1, x2, y1, y2):
+        self.x1 = x1
+        self.x2 = x2
+        self.y1 = y1
+        self.y2 = y2
+    def __str__(self):
+        return f'{self.x1, self.y1}{self.x1, self.y2}{self.x2, self.y1}{self.x2, self.y2}'
+a = Rectangle(1, 2, 3, 4)
+print(a)
+

20241105/0/2.py

@@ -0,0 +1,41 @@
+class Rectangle:
+    rectcnt = 0
+    def __init__(self, x1, y1, x2, y2):
+        Rectangle.rectcnt += 1
+        self.__setattr__("rect_" + str(Rectangle.rectcnt), 0)
+        self.x1 = x1
+        self.x2 = x2
+        self.y1 = y1
+        self.y2 = y2
+    def __str__(self):
+        return f'{self.x1, self.y1}{self.x1, self.y2}{self.x2, self.y1}{self.x2, self.y2}'
+    def square(self):
+        return abs(self.x1 - self.x2) * abs(self.y1 - self.y2)
+    def __lt__(self, other):
+        return self.square() < other.square()
+    def __eq__(self, other):
+        return self.square() == other.square()
+    def __mul__(self, n):
+        return Rectangle(self.x1 * n, self.y1 * n, self.x2 * n, self.y2 * n)
+    def __rmul__(self, n):
+        return Rectangle(n * self.x1, n * self.y1, n * self.x2, n * self.y2)
+    def __getitem__(self, id):
+        mas = [(self.x1, self.y1), (self.x1, self.y2), (self.x2, self.y1), (self.x2, self.y2)]
+        return mas[id]
+    def __bool__(self):
+        return self.square() != 0
+    def __del__(self):
+        self.rectcnt -= 1
+        print(f"rectcnt; {Rectangle.rectcnt}")
+
+a = Rectangle(1, 2, 3, 4)
+b = Rectangle(2, 2, 3, 4)
+print(a == b)
+c = Rectangle(1, 2, 3, 4)
+d = Rectangle(1, 2, 3, 2)
+print(a)
+print(Rectangle.rectcnt)
+print(a.__dict__)
+print(a * 3, 5 * a)
+print(a[2], c[-2])
+print(a.__bool__(), d.__bool__())