:style的三种写法

    
<p :style="{fontFamily:arr.conFontFamily,color:arr.conFontColor,backgroundColor:arr.conBgColor}">{{con.title}}</p>

<a :style="{color:(index==0?arr.conFontColor:'#000')}" :href="con.subTitleHref" target="_self">{{con.subTitle}}</a>

<p :style="{fontFamily:arr.conFontFamily,fontSize:(arr.conFontSize!=0.36?arr.conFontSize+arr.conFontUnit:''),color:arr.conFontColor,backgroundColor:arr.conBgColor}">{{con.title}}</p>