docs: 2026-03-24作业_python文件

2026-03-24/2026-03-24_hw_3.py

@@ -0,0 +1,28 @@
+# 实现 Circle 类...
+
+
+import math
+
+class Circle():
+    radius = float(0)
+    def __init__(self, radius:float) -> None:
+        self.radius = radius
+    
+    def get_peimeter(self) -> float:
+        return math.pi * self.radius * 2
+    
+    def get_area(self) -> float:
+        return math.pi * (self.radius ** 2)
+    
+    def __str__(self) -> str:
+        return f"radius: {self.radius}\npeimeter: {self.get_peimeter()}\narea: {self.get_area()}\n"
+
+def main() -> int:
+    cir1 = Circle(3.0)
+    # print(str(cir1))
+    print(f"cir1: peimeter: {cir1.get_peimeter()}")
+    print(f"cir1: narea: {cir1.get_area()}")
+    return 0
+
+if __name__ == "__main__":
+    main()