<a class="downBtn" id="downBtn" href="" download [ngStyle]="{'display': downBtnShow ? 'unset' : 'none' }">下载</a>
[class.selected]='idx===curIdx'
areaColor = 'green';
<div><span [ngStyle]="{'color': areaColor}">{{area}}</span> m²</div>
<a class="downBtn" id="downBtn" href="" download [ngStyle]="{'display': downBtnShow ? 'unset' : 'none' }">下载</a>
[class.selected]='idx===curIdx'
areaColor = 'green';
<div><span [ngStyle]="{'color': areaColor}">{{area}}</span> m²</div>
本文标题:angular [class] [ngStyle]使用
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