fromcollectionsimportnamedtuplefrommathimportsqrt# A point has an x and a y coordinatePoint=namedtuple('Point','x y')# A triangle is defined by three pointsTriangle=namedtuple('Triangle','a b c')defdistance(p,q):"""Returns the distance between the provided pair of points"""returnsqrt((p.x-q.x)**2+(p.y-q.y)**2)defperimeter(triangle):"""Returns the perimeter of the provided triangle"""returndistance(triangle.a,triangle.b)+distance(triangle.b,triangle.c)+distance(triangle.c,triangle.a)defarea(triangle):"""Returns the area of the provided triangle using Heron's formula"""
写下区域函数的正文,后跟其文档字符串。
响应
fromcollectionsimportnamedtuplefrommathimportsqrt# A point has an x and a y coordinatePoint=namedtuple('Point','x y')# A triangle is defined by three pointsTriangle=namedtuple('Triangle','a b c')defdistance(p,q):"""Returns the distance between the provided pair of points"""returnsqrt((p.x-q.x)**2+(p.y-q.y)**2)defperimeter(triangle):"""Returns the perimeter of the provided triangle"""returndistance(triangle.a,triangle.b)+distance(triangle.b,triangle.c)+distance(triangle.c,triangle.a)defarea(triangle):"""Returns the area of the provided triangle using Heron's formula"""s=perimeter(triangle)/2returnsqrt(s*(s-distance(triangle.a,triangle.b))*(s-distance(triangle.b,triangle.c))*(s-distance(triangle.c,triangle.a)))
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