移动端键盘密码输入框插件（jquery用于支付密码）

最后生成样子：

配置值：

　　

* back {function} 回调函数

* msghtml {html} 自定义的html

* title {string|object} 标题

* {txt:标题，back:后退按钮}

* 字符串则只有标题，有back字段对象则有后退按钮

* sum {int} 输入的数字长度

* close {string} 关闭按钮的class类（有默认类名）

* cancel {string} 撤销重新输入按钮

js

 function ztkeyboard(options){
    let create =  function(){
        this.options = {
            'msghtml':options.msghtml||'',
            'title':options.title||'',
            'sum':options.sum,
            'close':$(options.close)||'',
            'cancel':$(options.cancel)||'',
        };
        this.init();
        this.show();
        this.click();
        this.close();
        this.delete();
    };
    create.prototype.init = () => {
        let pd='';//密码长度
        let keybord = '';//键盘按键
        for(var i=0;i<options.sum;i++){
            pd += `<span class="pd fl" dataval="">*</span>`;
        };
        for(var i=0;i<9;i++){
            keybord+= `<div class="fl key"><a class="btn" href="javascript:;">${i+1}</a></div>`
        }
        $('body').append(
            `<div id="keyboard-box" style='display:none'>
                    <div id="keyboard">
                        <div class="title">
                            <em class="fl back iconfont ${options.close}"></em>
                            <span class="tit-txt">
                                ${options.title}
                            </span>
                        </div>
                        <div class="con-box fn-clear">
                            ${pd}
                        </div>
                        ${options.msghtml}
                            <div class="keybord fn-clear">
                                ${keybord}
                                <div class="fl block"></div>
                                <div class="fl key"><a class="btn" href="javascript:;">0</a></div>
                                <div class="fl key close-keybord">
                                    <a href="javascript:;" class="iconfont ${options.cancel}"></a>
                                </div>
                            </div>
                    </div>
                </div>
            `
        );
        // 防止冒泡
        $('#keyboard-box').on('touchmove',function(e){
            e.preventDefault();
        })
    };
    // 键盘点击
    create.prototype.click = () => {
        $(".keybord .btn").on('click',function(){
            let index = $('.pd.fl.sure').index();
            let aim = $('.pd.fl.sure').length;
            if(index!=-1&&aim<`${options.sum}`){
                $('.pd.fl').eq(aim).addClass('sure').attr('val',this.text);
                if(aim==`${options.sum}`-1){
                    let password = '';
                    $('.pd.fl').each(function(i,datas){
                        password+=$(datas).attr('val');
                    })
                    create.prototype.back(password);//使用回调
                    $('#keyboard-box').fadeOut(500,function(){
                        $('#keyboard-box').remove();//清除元素
                    });
                }
            }else if(index==-1){
                $('.pd.fl').eq(0).addClass('sure').attr('val',this.text);
            }
        })
    };
    //撤销按钮
    create.prototype.delete = () => {
        $('.close-keybord .iconfont').on('click',function(){
            let aim = $('.pd.fl.sure').length;
            $('.pd.fl').eq(aim-1).removeClass('sure').attr('val','');
        })
    };
    // 显示对象
    create.prototype.show = () => {
        $('#keyboard-box').fadeIn(500);
    }
    // 取消对象创建
    create.prototype.close = () => {
        $('#keyboard .title .back').on('click',function(){
            $('#keyboard-box').fadeOut(100,function(){
                $('#keyboard-box').remove();//清除元素
            });
        })
    },
    // 回调函数(传递输入的密码给前台)
    create.prototype.back = (password) => {
        typeof(options.back)==="function"?options.back(password):'undefined';
    };
    return new create();
 }

html调用方法

        ztkeyboard({
            msghtml:'<a class="forget-pwd" href="">忘记密码?</a>',
            title:'请输入支付密码',
            close:'icon-houtui',
            sum:6,
            cancel:'icon-chexiao',
            back:function(data){
                console.log(data)
                console.log('提交支付密码表单')
            }
        })

css(less)

@r:75rem;
@basecolor:#51d392;
/* 方法库 */
@import url("http://at.alicdn.com/t/font_903282_qp1m330oew.css");
#keyboard-box{
    position: fixed;
    display: block;
    width: 100%;
    left:;
    top:;
    height: 100%;
    background-color: rgba(0,0,0,0.2);
    #keyboard{
        position: absolute;
        bottom:;
        width: 100%;
        height: 880/@r;
        left:;
        background-color: #fff;
        .title{
            line-height: 92/@r;
            border-bottom: 1px solid #cacaca;
            position: relative;
            box-sizing: border-box;
            .fl{
                position: absolute;
                font-size:34/@r;
                color: #939395;
                padding-left: 40/@r;
            }
            .tit-txt{
                font-size: 38/@r;
                color: #333;
                text-align: center;
                display: block;

            }
        }
        .con-box{
            margin: 48/@r 32/@r 0 32/@r;
            display:flex;
            height: 94/@r;
            border: 1px solid #a2a2a4;
            border-radius: 10/@r;
            .pd{
                flex-grow:;
                text-align: center;
                font-size: 60/@r;
                line-height: 94/@r;
                color: #fff;
            }
            .pd:not(:last-child){
                border-right: 1px solid #a2a2a4;
            }
            .pd.sure{
                flex-grow:;
                text-align: center;
                font-size: 60/@r;
                line-height: 94/@r;
                color: #333;
            }
        }
        .forget-pwd{
            margin-top: 36/@r;
            margin-bottom: 150/@r;
            color: #0e8fe2;
            display: block;
            text-align: center;
        }
        .keybord{
            padding: 12/@r 12/@r 4/@r 12/@r;
            background-color: #d0d3da;
            .fl{
                width: 33%;
                height: 92/@r;
                display: inline-block;
                text-align: center;
                color: #333;
                padding-bottom: 12/@r;
                line-height: 92/@r;
                cursor: pointer;
                font-size:40/@r;
            }
            .btn{
                display: block;
                border-radius: 10/@r;
                height: 92/@r;
                line-height: 92/@r;
                background-color: #fff;
                margin: 0 6/@r;
                color: #333;
                box-shadow: 0px 10/@r 10/@r #88878c;
            }
            .close-keybord .iconfont{
                color: #333;
                font-size:60/@r;
                display: block;
            }
        }
    }
}