编写一个三角形类，能根据3个实数构造三角形对象，如果三个实数不满足三角形的条件，则自动构造以最小值为边的等边三角形。输入任意三个数，求构造的三角形面积-prepared a triangle category, according to three real tectonic triangular object, If the real number is not met three conditions triangle will a

编写一个三角形类，能根据3个实数构造三角形对象，如果三个实数不满足三角形的条件，则自动构造以最小值为边的等边三角形。输入任意三个数，求构造的三角形面积-prepared a triangle category, according to three real tectonic triangular object, If the real number is not met three conditions triangle will a

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