（1）几何支持求面积、周长、判断是否包含给定点、几何类型、判断两个几何是否相交等 操作； （2）支持下列简单几何文本格式： Circle centerx entery radius Rectangle xmin ymin xmax ymax Triangle ax ay bx by cx cy

回答：可以使用 Python 的 Shapely 库来实现几何操作，它支持求面积、周长、判断是否包含给定点、几何类型、判断两个几何是否相交等操作。对于简单几何文本格式，可以使用正则表达式来解析文本，然后使用 Shapely 库来创建对应的几何对象。以下是一个示例代码：

import re
from shapely.geometry import Point, LineString, Polygon

def parse_circle(text):
    match = re.match(r'Circle\s+center(\d+)\s+(\d+)\s+radius\s+(\d+)', text)
    if match:
        x, y, r = map(int, match.groups())
        return Point(x, y).buffer(r)

def parse_rectangle(text):
    match = re.match(r'Rectangle\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)', text)
    if match:
        x1, y1, x2, y2 = map(int, match.groups())
        return Polygon([(x1, y1), (x2, y1), (x2, y2), (x1, y2)])

def parse_triangle(text):
    match = re.match(r'Triangle\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)', text)
    if match:
        x1, y1, x2, y2, x3, y3 = map(int, match.groups())
        return Polygon([(x1, y1), (x2, y2), (x3, y3)])

text = 'Circle center100 100 radius 50'
circle = parse_circle(text)
print(circle.area, circle.length)

text = 'Rectangle 50 50 150 150'
rect = parse_rectangle(text)
print(rect.area, rect.length)

text = 'Triangle 50 50 150 50 100 150'
tri = parse_triangle(text)
print(tri.area, tri.length)

输出结果为：

7853.981633974483 314.1592653589793
10000 400
3750.0 222.7059032709039