<html> <head> ???<title></title> ???<meta content="charset=utf-8" /> </head> ?<body> ??每条字母数： ?<input type="text" id="engNum" /> ?<br /> 每条数字数： ?<input type="text" id="num" /> ?<br /> 获取条数： ?<input type="text" id="ranNum" /> ?<br /> ??<input type="button" onclick="getRan()" value="获取" /> ?<br /> ??<div id="res"></div> ??<script> ???var chars = [‘A‘, ‘B‘, ‘C‘, ‘D‘, ‘E‘, ‘F‘, ‘G‘, ‘H‘, ‘I‘, ‘J‘, ‘K‘, ‘L‘, ‘M‘, ‘N‘, ‘O‘, ‘P‘, ‘Q‘, ‘R‘, ‘S‘, ‘T‘, ‘U‘, ‘V‘, ‘W‘, ‘X‘, ‘Y‘, ‘Z‘, ‘a‘, ‘b‘, ‘c‘, ‘d‘, ‘e‘, ‘f‘, ‘g‘, ‘h‘, ‘i‘, ‘j‘, ‘k‘, ‘l‘, ‘m‘, ‘n‘, ‘o‘, ‘p‘, ‘q‘, ‘r‘, ‘s‘, ‘t‘, ‘u‘, ‘v‘, ‘w‘, ‘x‘, ‘y‘, ‘z‘]; ???function getEng(n) { ???????var res = ""; ???????for (var i = 0; i < n; i++) { ???????????var id = Math.ceil(Math.random() * 51); ???????????res += chars[id]; ???????} ???????return res; ???} ???function RndNum(n) { ???????var rnd = ""; ???????for (var i = 0; i < n; i++) { ???????????rnd += Math.floor(Math.random() * 10); ???????} ???????return rnd; ???} ???function getRan() { ???????var ran = ""; ???????var engNum = document.getElementById("engNum").value; ???????var num = document.getElementById("num").value; ???????var ranNum = document.getElementById("ranNum").value; ???????document.getElementById("res").innerHTML = ""; ???????for (var i = 0; i < ranNum; i++) { ???????????ran = getEng(engNum) + RndNum(num); ???????????document.getElementById("res").innerHTML += ran + "<br/>"; ???????} ???} ?</script> ??</body></html>js 字母+数字随机数获取
原文地址：https://www.cnblogs.com/kwm672225801/p/8478105.html