满屏产生随机数的练习

 1<div id="div1"></div>
 2
 3<script>
 4function write1(){
 5    var i = 0;
 6    for(i=0;i<40;i++){
 7        document.getElementById("div1").innerHTML += Math.floor(Math.random()*10+1)+"&nbsp;&nbsp;&nbsp;&nbsp;";
 8        i++;
 9        if (i==39){
10            document.getElementById("div1").innerHTML +="</br>";
11            i=0;
12        }

13    }

14    setTimeout("write1()",100);
15}

16</script>
17
18
19<input id="Button1" type="button" value="button" onclick="write1()" />
20
原文地址:https://www.cnblogs.com/8586/p/1238382.html