如何在角度模板中增加变量值

Question

我是 angular 新手，想在 JAVA 中打印时增加值，如下所示：

<% int count=1; %>
<%=count++%> This is line with Text
<%=count++%> This is another line with different text
<%=count++%> This is line with different text
<%=count++%> This is last line

Answer 1

也许这只能在带有一些奇怪的 ngIf hacks 的 html 中完成，但这可能不是要走的路。

相反，您可以使用这样的文本在*.component.ts中声明一个数组

lines = [
        'This is line with Text',
        'This is another line with different text',
        'This is line with different text',
        'This is last line',
    ];

并在*.component.html .component.html 中执行 *ngFor

    <div *ngFor="let line of lines; let index = index">{{ index + 1 }}: {{line}}</div>

它将输出：

<div>1: This is line with Text</div>
<div>2: This is another line with different text</div>
<div>3: This is line with different text</div>
<div>4: This is last line</div>