var Interval = 500;
var _long = 1;
var free = 0;
var state = free; //每次开仓   平仓  重置 
var buyInfo = null; //每次平仓重置
var sellInfo = null; //每次开仓重置
var initAccount = null; //每次平仓重置
var beginAccount = null; //不重置
var Profit = 0; //已实现盈亏
var prefloatProfit = 0;//上次的浮动盈亏，滑动止盈 更新
var openBalance = 0;//开仓量
var isCover = false;