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//生成0-10的随机数 乘10 加1得到的是浮点数
var random = Math.random() * 10 + 1;
// console.log(random);
// 向下取整
var ran = Math.floor(random);
console.log(ran);
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原文：https://www.cnblogs.com/ndh074512/p/14758020.html