找到转换代码了
s time = "1579827219000"
javanew(date,"java.util.Date")
javanew(format,"java.text.SimpleDateFormat","String","yyyy-MM-dd HH:mm:ss")
java(null,date,"java.util.Date.setTime","long",time)
java(formattedTime,format,"java.text.DateFormat.format","java.util.Date",date)
syso(formattedTime)
【"1579827219000" 就是时间戳】