//加法    add(10,2)  //12

function add(a, b) {

    var c, d, e;

    try {

        c = a.toString().split(".")[1].length;

    } catch (f) {

        c = 0;

    }

    try {

        d = b.toString().split(".")[1].length;

    } catch (f) {

        d = 0;

    }

    return e = Math.pow(10, Math.max(c, d)), (mul(a, e) + mul(b, e)) / e;

}

//减法   sub(10,2)  //8

function sub(a, b) {

    var c, d, e;

    try {

        c = a.toString().split(".")[1].length;

    } catch (f) {

        c = 0;

    }

    try {

        d = b.toString().split(".")[1].length;

    } catch (f) {

        d = 0;

    }

    return e = Math.pow(10, Math.max(c, d)), (mul(a, e) - mul(b, e)) / e;

}

//乘法   mul(10,2)  //20

function mul(a, b) {

    var c = 0,

        d = a.toString(),

        e = b.toString();

    try {

        c += d.split(".")[1].length;

    } catch (f) { }

    try {

        c += e.split(".")[1].length;

    } catch (f) { }

    return Number(d.replace(".", "")) * Number(e.replace(".", "")) / Math.pow(10, c);

}

//除法   div(10,2)  //5

function div(a, b) {

    var c, d, e = 0,

        f = 0;

    try {

        e = a.toString().split(".")[1].length;

    } catch (g) { }

    try {

        f = b.toString().split(".")[1].length;

    } catch (g) { }

    return c = Number(a.toString().replace(".", "")), d = Number(b.toString().replace(".", "")), mul(c / d, Math.pow(10, f - e));

}

// 判断是否是整数

function isInt(num) {

    var reg = new RegExp("^[0-9]*$");

    return reg.test(num);

}

// 判断是否是数字

function isNum(num) {

    var reg = new RegExp("^(\-)?[0-9]+(\.[0-9]+)?$");

    return reg.test(num);

}

// 判断是否是手机号码

function isPhone(phone) {

    var reg = new RegExp("^1[0-9]{10}$");

    return reg.test(phone);

}

//只能输入有两位小数的正实数，多用于价格

function isFloat(num) {

    var reg = new RegExp("^[0-9]+(\\.[0-9]{1,2})?$");

    return reg.test(num);

}

//只能输入有1位小数的正实数，多用于打折

function isFloat1(num) {

    var reg = new RegExp("^[0-9]+(\\.[0-9]{1})?$");

    return reg.test(num);

}

//获取当前时间年-月-日     getNowTime()   //2017-09-23

function getNowTime() {

    var date = new Date();

    var seperator1 = "-";

    var year = date.getFullYear();

    var month = date.getMonth() + 1;

    var strDate = date.getDate();

    var currentdate = year  + seperator1 + checkNum(month) + seperator1 + checkNum(strDate)

    return currentdate;

}

function checkNum(n){

    var num;

    if (n>= 1 && n<= 9) {

        num= "0" + n;

    }

    return num

}

//通用get请求

function commonGet(url, success, complete) {

    $.ajax({

        url: url,

        type: 'get',

        success: function (resp) {

            if (resp.code == 0) {

                typeof success === "function" && success(resp);

            } else {

                console.log(resp);

                layer.msg(resp.msg);

            }

            typeof complete === "function" && complete(resp);

        },

        error: function () {

            layer.msg('系统错误，请重试！');

            typeof complete === "function" && complete();

        }

    });

}

//通用post请求

function commonPost(url, data, success, complete) {

    setTimeout(function () {

        $(".loading").hide();

    },500)

    $(document).ajaxStart(function () {

        // layer.load(1, { shade: [0.1,'#fff'] })//0.1透明度的白色背景

        $(".loading").show();

    })

    $(document).ajaxSuccess(function () {

        $(".loading").hide();

    })

    $.ajax({

        url: url,

        type: 'post',

        data: data,

        success: function (resp) {

            if (resp.code == 0) {

                typeof success === "function" && success(resp);

            } else {

              //  console.log(resp);

                $(".loading").hide();

                layer.msg(resp.msg);

            }

            typeof complete === "function" && complete(resp);

        },

        error: function (resp) {

            $(".loading").hide();

            layer.msg('系统错误，请重试！');

            typeof complete === "function" && complete();

        }

    });

}

//http://www.huistd.com/?id=99&ttt=3&haha=33

// GetQueryString("haha")

//获取地址栏参数

function GetQueryString(name) {

    var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");

    var r = window.location.search.substr(1).match(reg);

    if (r != null) return unescape(r[2]); return null;

}

//changeUrlArg(url, 'haha', 33); // http://www.huistd.com/?id=99&ttt=3&haha=33

//修改地址栏参数

function changeUrlArg(url, arg, val) {

    var pattern = arg + '=([^&]*)';

    var replaceText = arg + '=' + val;

    return url.match(pattern) ? url.replace(eval('/(' + arg + '=)([^&]*)/gi'), replaceText) : (url.match('[\?]') ? url + '&' + replaceText : url + '?' + replaceText);

}

//获取字符串长度

function getByteLen(val) {

    if (val == null || val == "undefined") return 0;

    return val.length;

}

//自定义函数处理queryParams的批量增加    jsonArr.serializeJsonObject()

$.fn.serializeJsonObject = function () {

    var json = {};

    var form = this.serializeArray();

    $.each(form, function () {

        if (json[this.name]) {

            if (!json[this.name].push) {

                json[this.name] = [json[this.name]];

            }

            json[this.name].push();

        } else {

            json[this.name] = this.value || "";

        }

    });

    return json;

}