flutter - 圓角

單個圓角變化

Container(
        height: 200,
        decoration: BoxDecoration(
          color: Colors.green,
          borderRadius: BorderRadius.only(
            topLeft: Radius.circular(50),
            topRight: Radius.circular(2),
            bottomLeft: Radius.circular(12),
            bottomRight: Radius.circular(30),
          ),
        ),
      );