private void openThread(int toOpen) {
   logger.debug("开启线程数量:" + toOpen);
   //		debug.log("开启线程数量:" + toOpen);
   for (int i = 0; i < toOpen; i++) {
     WorkThread workThread = new WorkThread(this, (runSize + pool.size()));
     pool.addFirst(workThread);
     logger.debug("创建线程 " + workThread.toString());
     //			debug.log("创建线程 " + workThread.toString());
   }
 }