swal()方法是一个提示框；

swal({ 
          title: "", 
          text: "请扫描用户手机上的付款码",
          type: "input", 
          showCancelButton: true, 
          closeOnConfirm: false, 
          cancelButtonText: "取消", 
          confirmButtonText: "确认", 
          imageUrl: "/assets/images/icon/scancode.gif",
          inputPlaceholder: "请填写付款码数字",
          showLoaderOnConfirm: true
        },function(inputValue){ 
            if(inputValue){
                if (inputValue === "") { 
                    swal.showInputError("请填写付款码数字");
                    return false 
                }else{
                    $("input[name='authCode']").val(inputValue);
                    var form = cashierFrom.serialize();
                    $.post("/cashier/order", form, function(data) {
                        var result = $.parseJSON(data);
                        if (result.code == 'SUCCESS') {
                            swal({
                                title : "支付成功",
                                type : "success",
                                confirmButtonText : "确定",
                                closeOnConfirm : false
                            });
                        } else {
                            if(result.subCode=='USER_PAYING'){
                                var html = '<div class="q-btn-box"><button type="button" class="btn btn-primary waves-effect waves-light">取消</button></div>';
                                showLoadAlert('等待用户输入密码..',html);
                                var no = result.outTradeNo;
                                queryInterval = self.setInterval("cashierOrderQuery('"+no+"',true)",3000);
                            }else{
                                swal({
                                    title : "支付失败",
                                    type : "error",
                                    text : result.msg,
                                    confirmButtonText : "确定",
                                    closeOnConfirm : false
                                });
                            }
                        }
                    });
                }
            }
        });

　swal() 增加确认及取消的方法

swal({
  title: "确认删除?",
  text: "Your will not be able to recover this imaginary file!",
  type: "warning",
  showCancelButton: true,
  confirmButtonColor: "#DD6B55",
  confirmButtonText: "确认",
  cancelButtonText: "取消",
  closeOnConfirm: false,
  closeOnCancel: false
},
function(isConfirm){
  if (isConfirm) {
    swal("Deleted!", "Your imaginary file has been deleted.", "success");
  } else {
        swal("Cancelled", "Your imaginary file is safe :)", "error");
  }
});

　　可参考地址：

http://www.dglives.com