//异步获取数据
function geturllist(params, url = '', callback = '') {

    if (!$.isplainobject(params) ) {
        alert('参数格式必需为json对象');
        return false;
    }
    var data = '';
    i = 0;
    var withparam = '';
    for (var key in params) {
        //console.log('key:' +key + ',value:' + params[key]);
        if (i != 0) {
            withparam = '&';
        }
        data += withparam + key + '=' + params[key];
        i++;
    }
    $.ajax({
        type: 'get',
        url: url,
        //async: false,
        datatype: 'json',
        data: data,
        success: callback,
        error: function (res) {
            //layer.msg(res.message);
        }
    });
}

//异步获取数据
function getpost(params, url = '', callback = '') {

    if (!$.isplainobject(params) ) {
        alert('参数格式必需为json对象');
        return false;
    }
    var data = '';
    i = 0;
    var withparam = '';
    for (var key in params) {
        //console.log('key:' +key + ',value:' + params[key]);
        if (i != 0) {
            withparam = '&';
        }
        data += withparam + key + '=' + params[key];
        i++;
    }
    $.ajax({
        type: 'post',
        url: url,
        //async: false,
        datatype: 'json',
        data: data,
        success: callback,
        error: function (res) {
            layer.msg(res.message);
        }
    });
}

//加法函数，用来得到精确的加法结果
function accadd(arg1, arg2) {
    var r1, r2, m;
    try {
        r1 = arg1.tostring().split(".")[1].length
    } catch (e) {
        r1 = 0
    }
    try {
        r2 = arg2.tostring().split(".")[1].length
    } catch (e) {
        r2 = 0
    }
    m = math.pow(10, math.max(r1, r2));
    return (accmul(arg1, m) + accmul(arg2, m)) / m;
}

//减
function floatsub(arg1, arg2) {
    var r1, r2, m, n;
    try {
        r1 = arg1.tostring().split(".")[1].length
    } catch (e) {
        r1 = 0
    }
    try {
        r2 = arg2.tostring().split(".")[1].length
    } catch (e) {
        r2 = 0
    }
    m = math.pow(10, math.max(r1, r2));
    //动态控制精度长度
    n = (r1 >= r2) ? r1 : r2;
    return ((arg1 * m - arg2 * m) / m).tofixed(n);
}

//乘法
function accmul(arg1, arg2) {
    var m = 0, s1 = arg1.tostring(), s2 = arg2.tostring();
    try {
        m += s1.split(".")[1].length
    } catch (e) {
    }
    try {
        m += s2.split(".")[1].length
    } catch (e) {
    }
    return number(s1.replace(".", "")) * number(s2.replace(".", "")) / math.pow(10, m)
}

//除
function floatdiv(arg1, arg2) {
    var t1 = 0, t2 = 0, r1, r2;
    try {
        t1 = arg1.tostring().split(".")[1].length
    } catch (e) {
    }
    try {
        t2 = arg2.tostring().split(".")[1].length
    } catch (e) {
    }
    r1 = number(arg1.tostring().replace(".", ""));
    r2 = number(arg2.tostring().replace(".", ""));
    return (r1 / r2) * math.pow(10, t2 - t1);
}