【整理】【精华】【实用】常用代码片段（一）

//替代绑定模板数据________________________
 
    .replace(/{形参}/g, 实参);
 
    html += tpl
        .replace(/{形参}/g, 实参);

//for循环________________________
 
    var arr =
    for (var i = 0, len = arr.length; i < len; i++) {
        var a = arr[i];
 
    }
 
 
    var arr =, html = '', tpl = '{形参}';
    for (var i = 0, len = arr.length; i < len; i++) {
        var a = arr[i];
        html += tpl
            .replace(/{形参}/g, 实参)
            .replace(/{形参}/g, 实参);
    }
    DOM.innerHTML = html;

//Axios读取后台数据________________________
 
var params = {参数名: "参数值"};
this.$axios.get("接口路径", {params: params}).then(r => {
    r = r.data;
    if (r.status == "SUCCESS") {
        r = r.data;
        if (r) {/*这里写代码*/
            /* this.items = r;*/
        }
    } else {
        alert(r.message);
    }
}).catch(e => {
    console.log("【接口报错】", e);
});

//将数字转换为保留2位有效数字的百分数________________________
    var value = 0.0251;
    value = parseFloat((value * 100).toFixed(2)) + '%';
    alert(value);

/*验证用户名输入*/
    onkeyup = "this.value=this.value.replace(/\ |\　|[^\x00-\x80]/g,'')"

//自定义控制台显示样式________________________
    var msg = '提内内容';
    console.log('%c报错信息：','background:red;color:white;padding:5px;border-radius:5px;',msg);

//Vue常用读取后台接口方法________________________
    var params = {参数名: "参数值"};
    this.$axios.get("接口路径", {params: params}).then(r => {
        r = r.data;
        if (r.status == "SUCCESS") {
            r = r.data;
            if (r) {/*这里写代码*/
                /* this.items = r;*/
            }
        } else {
            console.log('%c报错信息', 'background:red;color:white;padding:5px;border-radius:5px;',r.message);
        }
    }).catch(e => {
        console.log("【接口报错】", e);
    });

    .shadow {
        /*穿透阴影效果兼容各种浏览器*/
        -webkit-filter: drop-shadow(5px 10px 20px rgba(0, 0, 0, .5));
        filter: drop-shadow(5px 10px 20px rgba(0, 0, 0, .5));
        -ms-filter: "progid:DXImageTransform.Microsoft.Dropshadow(OffX=5, OffY=10, Color='#CCC')";
        filter: "progid:DXImageTransform.Microsoft.Dropshadow(OffX=5, OffY=10, Color='#CCC')";
    }

 
    @media screen and (max-width: 1260px) {
        .div {
            /**适应1280x800的屏幕,除去浏览器滚动条宽度20px*/
        }
    }
    @media screen and (min-width: 1261px) and  (max-width: 1346px) {
        .div {
            /**适应1366x768的屏幕,除去浏览器滚动条宽度20px*/
        }
    }
    @media screen and (min-width: 1347px) and  (max-width: 1420px) {
        .div {
            /**适应1440x900的屏幕,除去浏览器滚动条宽度20px*/
        }
    }
    @media screen and (min-width: 1421px) and  (max-width: 1900px) {
        .div {
            /**适应1920x1080的屏幕,除去浏览器滚动条宽度20px*/
        }
    }
    @media screen and (min-width: 1901px) {
        .div {
            /**适应宽度超过1920的屏幕,除去浏览器滚动条宽度20px*/
        }
    }
    @media screen and (max-height: 668px) {
        .div {
            /**适应1366x768的屏幕,除去浏览器菜单栏、标签栏、状态栏以及系统任务栏高度100px*/
        }
    }
    @media screen and (min-height: 669px) and  (max-height: 800px) {
        .div {
            /**适应1440x900的屏幕,除去浏览器菜单栏、标签栏、状态栏以及系统任务栏高度100px*/
        }
    }
    @media screen and (min-height: 801px) and  (max-height: 980px) {
        .div {
            /**适应1920x1080的屏幕,除去浏览器菜单栏、标签栏、状态栏以及系统任务栏高度100px*/
        }
    }
    @media screen and (min-height: 981px) {
        .div {
            /**适应高度超过1080的屏幕,除去浏览器菜单栏、标签栏、状态栏以及系统任务栏高度100px*/
        }
    }

    <link rel="stylesheet" type="text/css" media="screen and (max-device-width:768px)" href="css/手机.css">
    <link rel="stylesheet" type="text/css" media="screen and (min-device-width:769px)" href="css/电脑.css">

 /**禁止拖拽保存图片*/function donotDrag() {
        window.ondragstart = window.ontouchmove = document.ondragstart = document.ontouchmove = function (e) {
            e.preventDefault();
            return false;
        };
    }

<!--获取外网IP-->
<!--<script src="http://ip.chinaz.com/getip.aspx"></script>-->
<script src="http://pv.sohu.com/cityjson?ie=utf-8"></script>
<script> document.write('您的外网IP：' + returnCitySN["cip"] + '<br>您的邮编：' + returnCitySN["cid"] + '<br>您所在城市：' + returnCitySN["cname"]);</script>

$(function(){
 
})
 
$().ready(function(){
 
})
 
$(document).ready(function(){
 
})
 
$(window).load(function(){
 
})

.animate-name {
    animation: animate-name .618s linear infinite;
    -moz-animation: animate-name .618s linear infinite; /** Firefox */
    -webkit-animation: animate-name .618s linear infinite; /** Safari 和 Chrome */
    -o-animation: animate-name .618s linear infinite; /** Opera */
}
 
@keyframes animate-name {
    0% {
        transform: rotate(0deg);
    }
    50% {
        transform: rotate(180deg);
    }
    100% {
        transform: rotate(360deg);
    }
}
 
@-moz-keyframes animate-name {
    0% {
        -moz-transform: rotate(0deg);
    }
    50% {
        -moz-transform: rotate(180deg);
    }
    100% {
        -moz-transform: rotate(360deg);
    }
}
 
@-webkit-keyframes animate-name {
    0% {
        -webkit-transform: rotate(0deg);
    }
    50% {
        -webkit-transform: rotate(180deg);
    }
    100% {
        -webkit-transform: rotate(360deg);
    }
}
 
@-ms-keyframes animate-name {
    0% {
        -ms-transform: rotate(0deg);
    }
    50% {
        -ms-transform: rotate(180deg);
    }
    100% {
        -ms-transform: rotate(360deg);
    }
}
 
@-o-keyframes animate-name {
    0% {
        -o-transform: rotate(0deg);
    }
    50% {
        -o-transform: rotate(180deg);
    }
    100% {
        -o-transform: rotate(360deg);
    }
}

    div {
        -webkit-transform: translateY(-5px); /* for Chrome || Safari */
        -moz-transform: translateY(-5px); /* for Firefox */
        -ms-transform: translateY(-5px); /* for IE */
        -o-transform: translateY(-5px); /* for Opera */
        transform: translateY(-5px);
    }

    *:not([class*=layui-layer]), :before, :after, :visited, :focus, :focus-within, :checked {
        transition: .382s; /** IE 9 */
        -moz-transition: .382s; /** Firefox 4 */
        -webkit-transition: .382s; /** Safari 和 Chrome */
        -o-transition: .382s;
        /** Opera */
        -khtml-transition: .382s; /** only Safari */
    }

div {
        transition: .382s;
        -moz-transition: .382s;
        -webkit-transition: .382s;
        -o-transition: .382s;
        -khtml-transition: .382s;
    }

    /*自定义选择内容样式*/
    ::selection {
        background: rgba(82, 170, 255, .3);
        color: #2366bd;
    }
 
    ::-moz-selection {
        background: rgba(82, 170, 255, .3);
        color: #2366bd;
    }
 
    ::-webkit-selection {
        background: rgba(82, 170, 255, .3);
        color: #2366bd;
    }

/*滚动条轨道*/
    ::-webkit-scrollbar {
        width: 8px;
        background: rgba(255, 255, 255, 0.2);
    }
 
    /*滚动条滑块*/
    ::-webkit-scrollbar-thumb {
        border-radius: 8px;
        background: rgba(255, 255, 255, 0.2);
    }
 
    /*移入滑块*/
    ::-webkit-scrollbar-thumb:hover {
        background: rgba(255, 255, 255, 0.4);
    }

    var url = "http://www.shuzhiqiang.com/api";
    var data = {start: 0, count: 1};
    $.ajax({
        type: "POST", url: url, data: data, success: function (data) {
            if (data.code == 200) {
                console.log(data);
                document.write(JSON.stringify(data));
            }
            else {
                console.log("报错", data);
            }
        }, error: function (e) {
            console.log(e);
        }
    });

    $.ajax({
        type: "GET", url: "http://www.shuzhiqiang.com/api", data: {username: "admin", password: "123456"}, success: function (data) {
            document.write(JSON.stringify(data));
        }, error: function (e) {
            console.log(e);
        }
    })

/**jsonp方式获取数据*/
    $.ajax({
        type: "POST",
        url: "http://www.shuzhiqiang.com/api",
        data: {method: "originateCollectByDay", startDate: "2017-05-01", endDate: "2017-07-01"},
        dataType: "jsonp",
        jsonp: 'callback',
        success: function (data) {
            alert(data[0].originate);
        }
    })

<script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script>
<script>
    $.get("http://www.w3school.com.cn/example/jquery/demo_test.asp&id=1",
        function (data, status) {
            alert("数据：" + data + "\n状态：" + status);
        });
</script>

<script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script>
<script>
    $.post("http://www.w3school.com.cn/example/jquery/demo_test.asp", {name: "Donald Duck", city: "Duckburg"}, function (data, status) {
        alert("Data: " + data + "\nStatus: " + status);
    });
</script>

    /**postJSON自定义方法*/
    var postJSON = function (url, data, success) {
        typeof  data == "function" && (success = data, data = {});
        typeof  data == "undefined" || typeof data == "null" && (success = function () {
        }, data = {});
        return $.ajax({
            type: "POST",
            contentType:
                "application/x-www-form-urlencoded;application/json; charset=utf-8",
            /**这个里面的application/x-www-form-urlencoded如果去掉，Tomcat的HttpServletRequest类request.getParameter(name)将无法获取数据*/ dataType: "jsonp",
            jsonp: "callback",
            url: url,
            data: data,
            success:
            success
        });
    };
    /**调用postJSON*/$.postJSON("http://www.shuzhiqiang.com/api", {username: "admin", password: "123456"}, function (data) {
        console.log(data);
    });

<script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script>
<script>
    /**getJSON方法：jQuery读取jsonp格式数据，在 jQuery 1.2 中，您可以通过使用 JSONP 形式的回调函数来加载其他网域的 JSON 数据，如 "myurl?callback=?"。jQuery 将自动替换 ? 为正确的函数名，以执行回调函数。 注意：此行以后的代码将在这个回调函数执行前执行。*/
    $.getJSON("http://www.shuzhiqiang.com/api?parameter=1" + "&callback=?", function (data) {
        console.log(data);
    }).success(function () { /**alert("success");*/
    }).error(function () { /**alert("error");*/
    }).complete(function () { /**alert("complete");*/
    }).done(function () { /**从jQuery 1.8开始不支持success回调函数*/
        /**alert('成功');*/
    }).fail(function () {/**从jQuery 1.8开始不支持error回调函数*/
        /**alert('失败')*/
    }).always(function () { /**从jQuery 1.8开始不支持complete回调函数*/
        /**alert('完成');*/
    });
</script>

<script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script>
<script>
    /**getJSON方法：jQuery读取jsonp格式数据，在 jQuery 1.2 中，您可以通过使用 JSONP 形式的回调函数来加载其他网域的 JSON 数据，如 "myurl?callback=?"。jQuery 将自动替换 ? 为正确的函数名，以执行回调函数。 注意：此行以后的代码将在这个回调函数执行前执行。*/
    $.getJSON("http://www.shuzhiqiang.com/api?parameter=1" + "&callback=?", function (data) {
        console.log(data);
    }).success(function () { /**alert("success");*/
    }).error(function () { /**alert("error");*/
    }).complete(function () { /**alert("complete");*/
    }).done(function () { /**从jQuery 1.8开始不支持success回调函数*/
        /**alert('成功');*/
    }).fail(function () {/**从jQuery 1.8开始不支持error回调函数*/
        /**alert('失败')*/
    }).always(function () { /**从jQuery 1.8开始不支持complete回调函数*/
        /**alert('完成');*/
    });
</script>

/*径向渐变合集----------------------------------------------------------------*/
 
/* closest-side */
    .closest-side .circle {
        background-image: -webkit-radial-gradient(closest-side circle at 50% 90%, transparent, black);
        background-image: -o-radial-gradient(closest-side circle at 50% 90%, transparent, black);
        background-image: -moz-radial-gradient(closest-side circle at 50% 90%, transparent, black);
        background-image: radial-gradient(closest-side circle at 50% 90%, transparent, black);
    }
 
    .closest-side .ellipse {
        background-image: -webkit-radial-gradient(closest-side ellipse at 50% 90%, transparent, black);
        background-image: -o-radial-gradient(closest-side ellipse at 50% 90%, transparent, black);
        background-image: -moz-radial-gradient(closest-side ellipse at 50% 90%, transparent, black);
        background-image: radial-gradient(closest-side ellipse at 50% 90%, transparent, black);
    }
 
    /* closest-corner */
    .closest-corner .circle {
        background-image: -webkit-radial-gradient(closest-corner circle at 50% 90%, transparent, black);
        background-image: -o-radial-gradient(closest-corner circle at 50% 90%, transparent, black);
        background-image: -moz-radial-gradient(closest-corner circle at 50% 90%, transparent, black);
        background-image: radial-gradient(closest-corner circle at 50% 90%, transparent, black);
    }
 
    .closest-corner .ellipse {
        background-image: -webkit-radial-gradient(closest-corner at 50% 90%, transparent, black);
        background-image: -o-radial-gradient(closest-corner at 50% 90%, transparent, black);
        background-image: -moz-radial-gradient(closest-corner at 50% 90%, transparent, black);
        background-image: radial-gradient(closest-corner ellipse at 50% 90%, transparent, black);
    }
 
    /* farthest-side */
    .farthest-side .circle {
        background-image: -webkit-radial-gradient(farthest-side circle at 50% 90%, transparent, black);
        background-image: -o-radial-gradient(farthest-side circle at 50% 90%, transparent, black);
        background-image: -moz-radial-gradient(farthest-side circle at 50% 90%, transparent, black);
        background-image: radial-gradient(farthest-side circle at 50% 90%, transparent, black);
    }
 
    .farthest-side .ellipse {
        background-image: -webkit-radial-gradient(farthest-side ellipse at 50% 90%, transparent, black);
        background-image: -o-radial-gradient(farthest-side ellipse at 50% 90%, transparent, black);
        background-image: -moz-radial-gradient(farthest-side ellipse at 50% 90%, transparent, black);
        background-image: radial-gradient(farthest-side ellipse at 50% 90%, transparent, black);
    }
 
    /* farthest-corner */
    .farthest-corner .circle {
        background-image: -webkit-radial-gradient(farthest-corner circle at 50% 90%, transparent, black);
        background-image: -o-radial-gradient(farthest-corner circle at 50% 90%, transparent, black);
        background-image: -moz-radial-gradient(farthest-corner circle at 50% 90%, transparent, black);
        background-image: radial-gradient(farthest-corner circle at 50% 90%, transparent, black);
    }
 
    .farthest-corner .ellipse {
        background-image: -webkit-radial-gradient(farthest-corner ellipse at 50% 90%, transparent, black);
        background-image: -o-radial-gradient(farthest-corner ellipse at 50% 90%, transparent, black);
        background-image: -moz-radial-gradient(farthest-corner ellipse at 50% 90%, transparent, black);
        background-image: radial-gradient(farthest-corner ellipse at 50% 90%, transparent, black);
    }

 
<script>
    /**仿ios弹窗样式*/
    function showIosLayer(content, time, shade, shadeClose, completeFun, getIndex) {
        time = time == undefined || time == null ? 3 : time;
        shade || (shade = [.4, 'black']);
        completeFun = completeFun || function () {
        };
        var index = layer.msg(content, {time: time * 1000, shade: shade, shadeClose: Boolean(shadeClose), skin: 'SG-layer-skin'}, completeFun);
        getIndex && getIndex(index);
        /**设置快捷键*/ document.onkeyup = function (e) {
            var k = e.keyCode || e.which || e.charCode;
            /**独立键*/
            if (k == 37 || k == 38 || k == 27 || k == 8) { /*按下 ← ↑ Esc <BACKSAPCE 的时候执行*/
                index && top.layer.close(index);
            }
        };
    }
 
    /**防止关闭模态窗体*/
    function showForbidVisitAlert() {
        showIosLayer("舒工温馨提示您：<br>该页面暂不支持移动端访问，请用电脑访问😊", 0, [1, "white"], false);
    }
</script>
 
<style>
    /**SG-layer-skin.css的样式为：*/
    body .layui-layer-msg {
        width: 75%;
        height: auto;
        font-family: 'Microsoft YaHei', 'PingFangSC-Regular', 'sans-serif', 'San Francisco', 'Microsoft Sans Serif', 'Arial';
        text-align: justify;
        color: dimgray;
        border-radius: 1em;
        border: none;
        box-shadow: 0 1em 2.5em rgba(0, 0, 0, .382);
        background: white;
    }
</style>

<!--热区-->
<img src="https://www.baidu.com/img/bd_logo1.png" usemap="#hot-area-map">
<!--如果不希望出现点击的边框热区，去掉usemap的#-->
<map name="hot-area-map">
    <area shape="rect" coords="20,20,80,80" href="#rect">
    <area shape="circle" coords="200,50,50" href="#circle">
    <area shape="poly" coords="150,100,200,120,180,130,190,180,150,150,100,160,140,120,100,110" href="#poly">
</map>

<!--百度获取地理信息坐标-->
<script src="http://api.map.baidu.com/api?v=2.0&ak=3k1MmoM9pAO0SMrlqe9qKhICi0cbo2TE"></script>
<!--上面这个百度APIkey密钥是用百度ID：155****3322注册的，如果要更改密钥权限找舒工！-->
<script>
    var baiduGEO = {
        getPosition: function (success, error) {
            var g = new BMap.Geolocation();
            /*开启SDK辅助定位*/
            g.enableSDKLocation();
            g.getCurrentPosition(function (p) { /*p.point.lng|p.point.lat*/
                this.getStatus() == BMAP_STATUS_SUCCESS ? success(p) : (error && error(p, this.getStatus()));
            });
        }, getDistance: function (from, to) {
            return new BMap.Map().getDistance(new BMap.Point(from.lng, from.lat), new BMap.Point(to.lng, to.lat));
        }
    };
    /*测试用例*/
    console.log(baiduGEO.getDistance({lng: 116.127214, lat: 24.306139}, {lng: 116.127443, lat: 24.306204}));
</script>

<!--腾讯获取地理信息坐标-->
<script src="https://apis.map.qq.com/tools/geolocation/min?key=6NMBZ-E4YL6-XF4SR-M75G4-FXCHE-FQBLL&referer=myapp"></script>
<script src="https://map.qq.com/api/js?v=2.exp&key=6NMBZ-E4YL6-XF4SR-M75G4-FXCHE-FQBLL"></script>
<!--上面这个腾讯APIkey密钥是腾讯ID：155****3322注册的，如果要更改密钥权限找舒工！-->
<script>
    var tencentGEO = {
        _key: '6NMBZ-E4YL6-XF4SR-M75G4-FXCHE-FQBLL', /*如果不能使用去https://lbs.qq.com/console/setting.html?key=6NMBZ-E4YL6-XF4SR-M75G4-FXCHE-FQBLL设置绑定IP白名单*/
        getPosition: function (success, error, timeout) { /*lng,lat,province,city,district|区,addr|最近地址名称,nation|国家,adcode|邮政编码,accuracy|位置误差（米）*/
            new qq.maps.Geolocation(this._key, "myapp").getLocation(success, error, {timeout: timeout || 10 * 1000});
            /*设置定位超时10秒钟 }*/
        },
        getDistance: function (from, to, success) {
            $.getJSON('https://apis.map.qq.com/ws/distance/v1/?mode=driving&output=jsonp&callback=?&from=' + from.lat + ',' + from.lng + '&to=' + to.lat + ',' + to.lng + '&key=' + this._key, function (d) {
                success(d.result.elements[0].distance);
            });
        }
    };
    /*测试用例*/
    tencentGEO.getDistance({lng: 116.127214, lat: 24.306139}, {lng: 116.127443, lat: 24.306204}, function (d) {
        console.log(d);
    });
</script>

微信浏览器的UserAgent
 
 
Mozilla/5.0 (Linux; Android 8.0; MI 6 Build/OPR1.170623.027; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/57.0.2987.132 MQQBrowser/6.2 TBS/044203 Mobile Safari/537.36 MicroMessenger/6.6.7.1321(0x26060739) NetType/WIFI Language/zh_CN

 
    /**原生JS实现jQuery的ready方法*/ function ready(fn) {
        var d = document;
        if (d.addEventListener) {/*标准浏览器*/
            d.addEventListener('DOMContentLoaded', function () {/*注销事件，避免反复触发*/
                d.removeEventListener('DOMContentLoaded', arguments.callee, false);
                /*执行函数*/
                fn();
            }, false);
        } else if (d.attachEvent) {/*IE浏览器*/
            d.attachEvent('onreadystatechange', function () {
                if (d.readyState == 'complete') {
                    d.detachEvent('onreadystatechange', arguments.callee);
                    /*执行函数*/
                    fn();
                }
            });
        }
    }
 
    /*测试用例*/
    ready(function () {
        alert("在加载完DOM（不包含图片等非文字媒体文件）之后，onload之前执行！")
    })

 
    var scroll = {
        id: null, scrollTop: function () {
            return document.body.scrollTop || document.documentElement.scrollTop || window.pageYOffset || 0;
        }, width: function () {
            var d = document.createElement('div'), s = {width: '100px', height: '100px', overflowY: 'scroll'}, i, w;
            for (i in s) d.style[i] = s[i];
            document.body.append(d), w = d.offsetWidth - d.clientWidth, d.remove();
            return w;
        }, twTo: function (y) { /*<script src="https://cdnjs.cloudflare.com/ajax/libs/gsap/2.0.2/TweenMax.min.js"><\/script>*/
            /* TweenMax.to("html", 1, {scrollTop: y, ease: Strong.easeOut});*/
            $("html").stop().animate({scrollTop: y});
        }, to: function (y) {
            function stopScroll() {
                scroll.id && clearInterval(scroll.id);
            }
 
            stopScroll();
            scroll.id = setInterval(function () {
                moveScroll(y);
            }, 1);
 
            function moveScroll(Y, R) {
                Y || (Y = 0);
                R || (R = .0382);
                var st = scroll.scrollTop();
                st += (Y - st) * R;
                window.scrollTo(0, st);
                st == Y && stopScroll();
            }
 
            window.onmousewheel = document.onmousewheel = document.onkeyup = window.onkeyup = function () {
                stopScroll();
            };
        }
    };
    /*测试用例*/
    scroll.to(2000);

<!--邮箱后缀自动补全功能：可以多个邮箱输入框遍历（datalist必须要紧接在inut后面）-->
<input list="inputDropDownList" placeholder="请输入邮箱"/>
<datalist id="inputDropDownList"></datalist>
 
<script type="text/javascript">
    function inputMailList(sel) {
        var mails = ["@qq.com", "@sina.com", "@163.com", "@126.com", "@yahoo.com.cn", "@gmail.com", "@sohu.com"];
        sel = typeof sel == "string" ? document.querySelectorAll(sel) : [sel];
        var arr = sel;
        for (var i in arr) {
            var a = arr[i];
            a.oninput = a.onchange = function () {
                var key = this.value, html = "";
                key = key.indexOf("@") > -1 ? key.slice(0, key.indexOf("@")) : key;
                for (var k in mails) {
                    html += '<option value="' + key + mails[k] + '"></option>';
                }
                (this.nextElementSibling || this.nextSibling).innerHTML = (html);
            }
        }
    }
 
    inputMailList("input");
</script>

 
    /**原生Ajax*/ function ajax() {
        var a = arguments[0];
        var d = {
            t: a.type || "GET", u: a.url || "", a: a.async || "true", d: a.data || null, dt: a.dataType || "text", ct: a.contentType || "application/x-www-form-urlencoded", b: a.beforeSend || function () {
            }, s: a.success || function () {
            }, e: a.error || function () {
            }
        };
        d.b();
        var xhr = window.XMLHttpRequest ? new XMLHttpRequest() : new ActiveXObject("Microsoft.XMLHTTP");
        xhr.responseType = d.dt;
        xhr.open(d.t, d.u, d.a);
        xhr.setRequestHeader("Content-Type", d.ct);
        xhr.send(JSON.stringify(d.d).replace(/\t|\n|\r|\"|\{|\}/g, "").replace(/,/g, "&").replace(/:/g, "="));
        xhr.onreadystatechange = function () {
            if (xhr.readyState == 4) {
                if (xhr.status == 200) {
                    d.s(xhr.response)
                } else {
                    d.e()
                }
            }
        }
    };
    /*测试用例*/
    ajax({
        type: "POST", url: "http://www.shuzhiqiang.com/api", dataType: "json", data: {start: 0, count: 5}, beforeSend: function (e) {
            console.log("开始加载…");
        }, success: function (msg) {
            console.log(msg)
        }, error: function (e) {
            console.log(e)
        }
    })