原生js 操作class

 

 

clickList(event) {
                var node = this.$refs.msg.childNodes
                var curr = event.currentTarget
                for (var i = 0; i < node.length; i++) {
                    if (node[i].nodeName != \'#text\') {
                        if(node[i] == curr){
                            node[i].classList.add("code");
                        }else {
                            node[i].classList.remove("code");
                        }
                    }
                }
            },

if (node[i].nodeName != \'#text\') 去除空白节点

node[i].classList.add("code"); 添加指定class

node[i].classList.remove("code"); 删除指定class