added classwork

20231031/0/prog1.py

+class Rectangle:
+    rectcnt = 0
+    def __init__(self, x1, y1, x2, y2):
+        self.x1, self.x2, self.y1, self.y2 = x1, x2, y1, y2
+        self.__class__.rectcnt += 1
+        k = int(Rectangle.rectcnt)
+        setattr(self, f'rect_{k}', k)
+    def __str__(self):
+        return f'{self.__class__.rectcnt}:({self.x1}, {self.y1})({self.x1}, {self.y2})({self.x2}, {self.y1})({self.x2}, {self.y2})'
+    def __lt__(self, item):
+        return abs(self) < abs(item)
+    def __eq__(self, item):
+        return abs(self) == abs(item)
+    def __abs__(self):
+        return (self.x2-self.x1)*(self.y2-self.y1)
+    def __mul__(self, item):
+        return Rectangle(self.x1*item, self.y1*item, self.x2*item, self.y2*item)
+    def __rmul__(self, item):
+        return Rectangle(self.x1*item, self.y1*item, self.x2*item, self.y2*item)
+    def __getitem__(self, item):
+        if item == 0:
+            return f'({self.x1}, {self.y1})'
+        if item == 1:
+            return f'({self.x1}, {self.y2})'
+        if item == 2:
+            return f'({self.x2}, {self.y1})'
+        if item == 3:
+            return f'({self.x2}, {self.y2})'
+a,b = Rectangle(0,0,4,4,), Rectangle(1,2,3,4)
+print(a, b)
+print(a.rectcnt, a.rect_1)
+print(abs(a),abs(b))
+print(b < a, a == b)
+print(b*5, a*2)
+print(a[1])
+