How to display a cross-valued variable in array form

var crss = []            //存储 交叉死叉的值
    var records = _C(exchange.GetRecords,PERIOD_M30);
    var bar = records[records.length -1]
    var strsi = talib.STOCHRSI(records, 14, 14, 3, 3)  //获取StochRSI指标数据
        if (strsi) {
        var stoc = strsi[0]
        var mast = strsi[1]
        var cross = _Cross(stoc,mast)
        }
    if (bar.Time > mtb) {
        crss.push(cross)
    }
    Log(crss)

The problem is that when I add an index to the CSS, it only shows one value anyway.