格式化元，三分位

 filters:{
    toThousands(value) { //100,000,000
      if (!value && val!=0) return ''
      value= value/100;
      var re=/(?=(?!(\b))(\d{3})+$)/g;
      value=(value+'').replace(re,",");
      return value
    },
    tofixedThousands(value) { //10,000,000.00
      if (!value && value!=0) return ''
      value= value/100;
      var re=/(\d)(?=(\d{3})+\.)/g;
      value=value.toFixed(2).replace(re,"$1,");
      return value
    },
    formatW(val){//100w
      if(!val && val!=0) return;
      val=Number(val);
      return val/100/10000
    },
    formatWFixed(val){
      if(!val && val!=0) return;
      val=Number(val);
      val=val/100/10000
      return val.toFixed(2)
        // return this.toFixed(2).replace(/(\d)(?=(\d{3})+\.)/g, '$1,');
    }
}