GetElementsCount

返回当前段落中的元素数量。

语法

expression.GetElementsCount();

expression - 表示 ApiRichParagraph 类的变量。

参数

此方法没有任何参数。

返回值

number

示例

计算 PDF 中段落的元素数。

// How do I find out how many items are in a paragraph in a PDF?

// Determine the total number of elements within a paragraph in a PDF.

let doc = Api.GetDocument();
let freeTextAnnot = Api.CreateFreeTextAnnot([160, 50, 360, 135]);
let page = doc.GetPage(0);
page.AddObject(freeTextAnnot);
freeTextAnnot.SetIntent("freeTextCallout");
freeTextAnnot.SetCallout([{x: 161, y: 51}, {x: 249, y: 125}, {x: 261, y: 125}]);
freeTextAnnot.SetRectDiff([100, 64, 0.5, 0.5]);

let richContent = freeTextAnnot.GetContent();
let para = richContent.GetElement(0);
para.AddText("Example text");

console.log(`Rich paragraph contains ${para.GetElementsCount()} elements`);