function main(spreadsheetReport) {
var sheet = spreadsheetReport.sheets[0];
var posList = sheet.getExpandedPositions("B4"); //获取B4单元格字段扩展出来的所有数据
var customProperties = spreadsheetReport.customProperties;
for (var i = 0; i < posList.length; i++) { //将B4单元格字段扩展出来的所有数据添加到属性customProperties中
var pos = posList[i];
var value = sheet.getCellValue(pos);
customProperties.put(pos + "", value);
}
}