const sysuser = '1';
const syspass = '1';
const startCmd = 'FE FE FE 7C ';

function execute(db, sql, callback) {
    db.executeSql({
        name: 'test',
        sql: sql
    }, function(ret, err) {
        // console.log(JSON.stringify(ret)+'['+sql+']');
        // console.log(JSON.stringify(err)+'['+sql+']');
        callback(ret, err);
    });
}

function select(db, selsql, callback) {
    db.selectSql({
        name: 'test',
        sql: selsql
    }, function(ret, err) {
        // console.log(JSON.stringify(ret)+'['+selsql+']');
        // console.log(JSON.stringify(err)+'['+selsql+']');
        callback(ret, err);
    });
}

//创建连接
function createTcp(sk, host, port, callback) {
    sk.createSocket({
        host: host,
        port: port,
        charset: 'iso-8859-1',
        returnBase64: true
    }, function(ret, err) {
        callback(ret, err);
    });
}

//写入数据
function witeTcp(sk, sid, message, callback) {
    sk.write({
        sid: sid,
        data: message,
        base64: true
    }, function(ret, err) {
        console.log("###########"+JSON.stringify(ret))
        callback(ret, err);
    });
}

//关闭连接
function close(sk, sid, callback) {
    sk.closeSocket({
        sid: sid
    }, function(ret, err) {
        callback(ret, err);
    })
}

function hexToStr(str) {
    console.log("str:" + arr);
    var val = "";
    var arr = str.split("\\");
    console.log("arr:" + arr);
    for (var i = 0; i < arr.length; i++) {
        console.log("arr[i]:" + arr[i]);
        arr[i] = arr[i].replace("u", "")
        val += String.fromCharCode(parseInt(arr[i], 16).toString(10));
    }
    console.log("val:" + val);
    return val;
}

$.fn.serializeObject = function() {
    var o = {};
    var a = this.serializeArray();
    $.each(a, function() {
        if (o[this.name]) {
            if (!o[this.name].push) {
                o[this.name] = [o[this.name]];
            }
            o[this.name].push(this.value || '');
        } else {
            o[this.name] = this.value || '';
        }
    });
    return o;
}

//封装全局数据
function SetGlobal(key, value, api) {
    api.setGlobalData({
        key: key,
        value: value
    });
}