<input id="dialogPrice" type="text" class="weui-input" placeholder="￥10" />

试了好多办法都不起作用。
下面是我的代码：

//其它金额
                $('#otherPriceBtn').on('click', function(e) {
                    var otherPrice = $('#dialogPrice').val();
                    getOtherPrice = otherPrice >= 3 && otherPrice <= 199;
                    if(getOtherPrice) {
                        weui.topTips('请输入3~199之间的金额！');
                    } else {
                        console.log("其它金额" + otherPrice);
                        var data = {
                            userId: userId,
                            price: otherPrice
                        };

                        data = JSON.stringify(data);
                        $.ajax({
                            data: {},
                            dataType: 'json',
                            type: "post",
                            url: url,
                            contentType: 'application/json; charset=utf-8',
                            success: function(data) {
                                
                            },
                            error: function(data) {
                                location.href = 'doctor_wode.html';
                            }
                        });
                    }
                });