正则精确到小数点后两位

    var price = e.detail.value;
    // if (!(/^d+.[0-9]{2}/).test(price)) {
    if (price.match(/^d{1,7}(.d{0,2})?$|^.d{1,2}$/)){
      defaultPrice = price;
      return price;
    }else{
      return defaultPrice;
    }