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例题出错？

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寒蔦

#1 Created at ... [Delete] [Delete and Lock User]

int random = 1 + (int) Math.random() * 3;给出的例子中random永远是1，因为生成的是随机小数，强转int就是0

廖雪峰

#2 Created at ... [Delete] [Delete and Lock User]

自己改对

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