checkbox 设置选中

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checkDate(id){
                //判断该元素是否存在,不存在择移除  
                if(this.form.peitao.indexOf(id)>0){
                    this.form.peitao.splice(this.form.peitao.indexOf(id), 1);
                    return;
                  }
                  this.form.peitao.push(id);
                  return;
                },