随机取6个数字且不能相同
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Math </title>
<style>
.qiu{
width:25px;
height:25px;
font-size:20px;
font-weight:600;
border-radius:50%;
background:#ff0000;
box-shadow:0 0 10px #000 inset;
border:1px solid #000;
color:#fff;
}
</style>
<script type="text/javascript">
function shuangSeQiu(){
var a = Math.ceil(Math.random() * 33);
var b = Math.ceil(Math.random() * 33);
var c = Math.ceil(Math.random() * 33);
var d = Math.ceil(Math.random() * 33);
var e = Math.ceil(Math.random() * 33);
var f = Math.ceil(Math.random() * 33);
var x = Math.ceil(Math.random() * 16);
document.getElementById('hongqiu1').value = a;
document.getElementById('hongqiu2').value = b;
document.getElementById('hongqiu3').value = c;
document.getElementById('hongqiu4').value = d;
document.getElementById('hongqiu5').value = e;
document.getElementById('hongqiu6').value = f;
document.getElementById('lanqiu').value = x;
}
</script>
</head>
<body>
<input type="button" value="o" onclick="shuangSeQiu()" />
<input type="text" class="qiu" id="hongqiu1" />
<input type="text" class="qiu" id="hongqiu2" />
<input type="text" class="qiu" id="hongqiu3" />
<input type="text" class="qiu" id="hongqiu4" />
<input type="text" class="qiu" id="hongqiu5" />
<input type="text" class="qiu" id="hongqiu6" />
<input type="text" class="qiu" id="lanqiu" style="background:#0000ff;" />
<!--需要6个红球不能相同，还有代码优化-->
</body>
</html>
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JavaScript