<!DOCTYPE html><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Math </title><script type="text/javascript"> var rannum = Math.random();document.write("获取到的随机数为："+rannum);document.write("四舍五入后的数字为:"+Math.round((rannum)*10))</script></head><body></body></html>
添加回答
举报
0/150
提交
取消