数值修改为千分位显示

// 千分位
export const numFormat = (num) => {
  if (num.toString().indexOf('.') !== -1) {
    let b = num.toLocaleString();
    return b;
  } else {
    let c = num.toString().replace(/(\d)(?=(?:\d{3})+$)/g, '$1,');
    return c;
  }
};