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📅  最后修改于: 2022-03-11 14:46:52.844000             🧑  作者: Mango
import math a = 3 b = 4 c = 5 s = (3 + 4 + 5)/2 F = math.sqrt(s*(s-a)*(s-b)*(s-c)) print(f"the area is {F}")