function main(simpleReport, simpleReportContext) {
var c1 = simpleReport.grid.getCell(1, 1);
var c2 = simpleReport.grid.getCell(1, 2);
var c3 = simpleReport.grid.getCell(1, 3);
var tailHTML = "<font style='font-weight:bold; font-size:18px; color:#000'>标题宏</font><font style='font-size:12px; color:#000'>产品平均价格为:<font style='font-size:12px; color:#00F'>" + c1.innerHTML + "</font>元,平均数量为:<font style='font-size:12px; color:#FC0'>" + c2.innerHTML + "</font>件,平均折扣为:<font style='font-size:12px; color:#F00'> " + c3.innerHTML + "</font></font>";
simpleReport.setHeader(tailHTML);
}