查就行了 ,算这个有必要吗 ?要用的话存起来就是.立方根 3√0 = 0 3√1 = 1 3√2 = 1.25992104989487 3√3 = 1.44224957030741 3√4 = 1.5874010519682 3√5 = 1.7099759466767 3√6 = 1.81712059283214 3√7 = 1.912...