uni-app 动态添加class

<view :class="{
     
     'click': add_class == 2}" @tap='addCalss(2)'> 
</view>

data() {
    
    
			return {
    
    
				add_class:'',//动态添加class类名
			}
		},
		methods: {
    
    
			// 动态添加class
			addCalss(data){
    
    
				this.add_class  = data
			}
		}