angular css 双向绑定的坑 IE

三种情况

1、只用style IE上不起作用

<div style="background:{{bgColor}}"> This will NOT get colored in IE </div>

2、用ng-attr-style 兼顾IE

<div ng-attr-style="background:{{bgColor}}"> But this WILL get colored in IE </div>

3、用ng-style 此处可以是JSon，可以带条件

<div ng-style="styleObject"> And so is this... as this uses a json object and gives that to ng-style </div> 或者 ng-class="{'arrow-up-active': arrowNavTriangle === 'up' }"