本文实例讲述了JS简单编号生成器实现方法。分享给大家供大家参考，具体如下：
运行效果截图如下：
具体代码如下：
<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>编号生成器</title> </head> <body> <h1>编号生成器</h1> <div> 前缀：<input id="txtBegin" type="text" value="" /> 后缀：<input id="txtEnd" type="text" value="" /> <br /> 位数：<input id="numCount" type="number" value="5" /> </div> <div> <label><input type="radio" name="a1" checked /> 连续数字</label> <label><input type="radio" name="a1" /> 随机字符</label> </div> <div id="divNum"> 范围：<input id="numBegin" type="number" value="0" /> ~ <input id="numEnd" type="number" value="100" /> <br /> 过滤字符：<input id="txtLimit" type="text" value="" /> 多个使用,号分割 </div> <div id="divPwd"> <h3>0123456789 abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ</h3> 包含字符：<input id="txtChar" type="text" value="ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789" /> <br /> 随机生成个数：<input id="txtCount" type="number" value="100" /> </div> <input type="button" value="生成号码" /> <span id="spanResult"></span> <hr /> <textarea id="txtContent"> </textarea> <script> var boNum = true; function fnNum() { document.getElementById('divNum').style.display = 'block'; document.getElementById('divPwd').style.display = 'none'; boNum = true; } function fnPwd() { document.getElementById('divNum').style.display = 'none'; document.getElementById('divPwd').style.display = 'block'; boNum = false; } function run() { var str = ''; var txtCount = parseInt(document.getElementById('txtCount').value); var txtBegin = document.getElementById('txtBegin').value; var txtEnd = document.getElementById('txtEnd').value; var txtChar = document.getElementById('txtChar').value; var numCount = parseInt(document.getElementById('numCount').value); var numBegin = parseInt(document.getElementById('numBegin').value); var numEnd = parseInt(document.getElementById('numEnd').value); var txtLimit = document.getElementById('txtLimit').value; var limit = txtLimit.split(','); if (txtLimit == '') { limit = []; } var count = 0; if (!boNum) { var list = []; for (var i=0; i<txtCount; i++) { var s = ''; for (var j=0; j<numCount; j++) { s += txtChar.charAt(Math.floor(Math.random() * txtChar.length)); } var bo = false; for (var ii=0; ii<list.length; ii++) { if (list[ii] == s) { bo = true; alert(s); break; } } if (bo) continue; str += txtBegin + s + txtEnd + 'rn'; list.push(s); count++; } } else { for (var i=numBegin; i<numEnd+1; i++) { var s = '' + i; s = (new Array( numCount - s.length + 1 ).join('0')) + s; var bo = false; for (var k=0; k<limit.length; k++) { if (s.indexOf(limit[k]) != -1) { bo = true; break; } } if (bo) continue; str += txtBegin + s + txtEnd + 'rn'; count++; } } document.getElementById('txtContent').value = str; document.getElementById('spanResult').innerHTML = '生成了 ' + count + ' 个'; } </script> </body> </html>
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希望本文所述对大家JavaScript程序设计有所帮助。