隐式交集逻辑将多个值减少为一个值。 用户可以在公式之前添加 @ 来强制公式返回单个值，因为单元格只能包含一个值。 如果公式返回一个值，则隐式交集不会执行任何操作（即使是在后台完成的）。 逻辑工作方式如下：
如果该值是单个项, 则返回该项。
如果该值为一个区域, 则从与公式位于同一行或列的单元格中返回值。
如果该值为数组, 则选择左上角的值。
随着动态数组的出现，SpreadJS不再局限于从公式返回单个值，因此不再需要静态的隐式交集。 如果旧公式可以不可见地触发隐式交集, 则 Excel 启用动态数组将显示 @ 的发生位置。
注意:
隐式交集运算符 @ 仅在allowDynamicArray为true时有效。
window.onload = function () {
var spread = new GC.Spread.Sheets.Workbook(_getElementById("ss"));
initSpread(spread);
};
function initSpread(spread) {
spread.options.allowDynamicArray = true;
var sheet = spread.getActiveSheet();
spread.suspendPaint();
spread.suspendCalcService();
sheet.name('@');
sheet.setText(0, 1, 'The implicit intersection operator @, evaluates an expression using implicit intersection. The formula can return a value, range, or error.');
sheet.setText(1, 1, 'Where value is a range, @ will return the value at the intersection of the row and column of the formula cell.');
sheet.setText(2, 1, ' Syntax: @value');
var row = 7;
var col = 1;
var col2 = col + 2;
var rowCount = 11;
applyTableStyleForRange(sheet, row, col, rowCount, 1);
applyTableStyleForRange(sheet, row, col2, rowCount, 1);
sheet.getCell(row, col).text('Item #').hAlign(2);
sheet.getCell(row, col2).text('@').hAlign(2);
row++;
sheet.setFormula(row, col, 'SEQUENCE(10)');
for(var i = 0, r = row; i < 10; i++, r++) {
sheet.setFormula(r, col2, '@$B$9:$B$18');
}
sheet.setFormula(20, col2, '@$B$9:$B$18');
sheet.setText(20, col2 + 1, ' <--- error because no intersection');
sheet.setFormula(9, col2 + 2, '@$B$10:$D$10');
sheet.setText(9, col2 + 3, ' <--- error because intersection with multiple cells');
spread.resumeCalcService();
spread.resumePaint();
}
function applyTableStyleForRange(sheet, row, col, rowCount, colCount, options) {
var tableName = "tmpTable";
var TableThemes = GC.Spread.Sheets.Tables.TableThemes;
// use table to help set style then remove like convert table to range in Excel
sheet.tables.add(tableName, row, col, rowCount, colCount, TableThemes.medium7, options);
sheet.tables.remove(tableName, 2 /* keep style */);
}
function _getElementById(id) {
return document.getElementById(id);
}
<!doctype html>
<html style="height:100%;font-size:14px;">
<head>
<meta name="spreadjs culture" content="zh-cn" />
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" type="text/css"
href="$DEMOROOT$/zh/purejs/node_modules/@grapecity-software/spread-sheets/styles/gc.spread.sheets.excel2013white.css">
<script src="$DEMOROOT$/zh/purejs/node_modules/@grapecity-software/spread-sheets/dist/gc.spread.sheets.all.min.js"
type="text/javascript"></script>
<script
src="$DEMOROOT$/zh/purejs/node_modules/@grapecity-software/spread-sheets-resources-zh/dist/gc.spread.sheets.resources.zh.min.js"
type="text/javascript"></script>
<script src="$DEMOROOT$/spread/source/js/license.js" type="text/javascript"></script>
<script src="app.js" type="text/javascript"></script>
<link rel="stylesheet" type="text/css" href="styles.css">
</head>
<body>
<div class="sample-tutorial">
<div id="ss" style="width:100%; height: 100%"></div>
</div>
</body>
</html>
.sample {
position: relative;
height: 100%;
overflow: auto;
}
.sample::after {
display: block;
content: "";
clear: both;
}
.sample-tutorial {
position: relative;
height: 100%;
overflow: hidden;
}
.sample-spreadsheets {
width: calc(100% - 280px);
height: 100%;
overflow: hidden;
float: left;
}
.options-container {
float: right;
width: 280px;
padding: 12px;
height: 100%;
box-sizing: border-box;
background: #fbfbfb;
overflow: auto;
}
.option-row {
font-size: 14px;
padding: 5px;
margin-top: 10px;
}
.option-group {
margin-bottom: 6px;
}
label {
display: block;
margin-bottom: 6px;
}
input {
margin-bottom: 5px;
padding: 2px 4px;
width: 100%;
box-sizing: border-box;
}
input[type=button] {
margin-bottom: 6px;
}
hr {
border-color: #fff;
opacity: .2;
margin: 5px 0;
}
body {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
}
