javascript 随机取任意四个字母和随机生成一个名字

来源：互联网发布：杭州小知科技知乎编辑：程序博客网时间：2024/05/01 19:13

<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>Math对象</title>
</head>
<body>
<button class="btn1">名字</button>
<br/><br/>
<span>随机生成的名字是：</span><span class="name"></span>
<br/><br/>
<script>

// //随机取任意四个字母

var str="aporhjbmvncjrovmbxvzzoeclolmqlpvsdffgfgf";
function ss(a,b){
var fanhui="";
for(var i=0;i<b;i++){
var aa= Math.floor(Math.random()*(str.length));
fanhui+= str.substring(aa,aa+1);
}
console.log(fanhui);
}
ss(str,4);

//随机取一个姓名（用字符串）

var xing="李,魏,沈,张,徐,常";
var ming="彪,巨昆,锐,花,小小,撒撒";
function namea(c,d) {
var xinga= c.split(",");
var minga= d.split(",");
// console.log(xinga);
console.log(xinga[Math.floor(Math.random() * (xinga.length))] + minga[Math.floor(Math.random() * (minga.length))]);
}
namea(xing,ming);

//随机取一个姓名（用数组）

var btn = document.getElementsByClassName("btn1").item(0);
var span1 = document.getElementsByClassName("name").item(0);
var firstname=["李","西门","沈","张","上官","司徒","欧阳","轩辕"];
var nameq=["彪","巨昆","锐","翠花","小小","撒撒","熊大","宝强"];
btn.onclick =function(){
var strr="";
var xingxing = firstname[Math.floor(Math.random() * (firstname.length))];
var mingming = nameq[Math.floor(Math.random() * (nameq.length))];
// console.log(xingxing+mingming);
span1.innerHTML=xingxing+mingming;

};
</script>
</body>
</html>

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