该演示广泛使用了以下强大的 SpreadJS 功能：
- SEQUENCE/FILTER 根据一个公式将多个结果返回到一系列单元格。
- RANGEBLOCKSPARKLINE 允许您定义多行/列模板并将该自定义模板应用于单元格。
还使用 Conditional Formatting 将现金短缺天数（负期末余额）涂上红色，将期末余额为正的天数涂上绿色，将中性天数涂上黑色。
此外，使用 CellClick Event 来提取用户从日历中选择日期时发生的所有事务的列表。
window.onload = function () {
var spread = new GC.Spread.Sheets.Workbook(document.getElementById("ss"), { sheetCount: 5 });
initSpread(spread);
};
function initSpread(spread) {
if (!spread) {
return;
}
spread.fromJSON(cashflow_calendar);
var cashflowSheet = spread.getSheetFromName("Cash-Flow");
// on day selection, update a cell used in filtering the data to show detailed transaction list
cashflowSheet.bind(GC.Spread.Sheets.Events.SelectionChanged, function (sender, args) {
const sheet = args.sheet;
const row = args.newSelections[0].row;
const col = args.newSelections[0].col;
if ((row < 3 || row >= 3 + 6)
|| (col < 1 || col >= 1 + 7))
return;
// set the current date cell so that FILTER would update.
sheet.setValue(10, 1, sheet.getValue(row, col));
});
}
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