Math.floor(Math.random()*(max-min)+min);//取不到max
Math.round(Math.random()*(max-min)+min);//可以取到min，也可以取到max，更合理一點(diǎn)
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Teacher, use the floor method for random questions and never take the maximum value. Why not use round? -PHP Chinese website Q&A-Teacher, use the floor method for random questions and never take the maximum value. Why not use round? -PHP Chinese website Q&A
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