关于qlexpress的 errorinfo

errorinfo 只在操作符返回 false 时加入errorList

	runner.addOperator("add",new addOperator());runner.getOperatorFactory().getOperator("add").setErrorInfo("$1 加法错误");class addOperator extends Operator {public Object executeInner(Object[] list) throws Exception {Object opdata1 = list[0];Object opdata2 = list[1];return Integer.parseInt(opdata1.toString()) +             Integer.parseInt(opdata2.toString());}
}