currency

问题 I have the following code: var x = "100.007" x = String(parseFloat(x).toFixed(2)); return x => 100.01 This works awesomely just how I want it to work. I just want a tiny addition, which is something like: var x = "100,007" x.replace(",", ".") x.replace x = String(parseFloat(x).toFixed(2)); x.replace(".", ",") return x => 100,01 However, this code will replace the first occurrence of the ",", where I want to catch the last one. Any help would be appreciated. 回答1: You can do it with a regular

问题 I want to store values in a bunch of currencies and I'm not too keen on the imprecise nature of floats. Being able to do math on them directly in queries is also a requirement. Is Decimal the way to go here? 回答1: Decimal is the best way to go. You can still do math within the queries. 来源： https://stackoverflow.com/questions/248512/what-is-the-best-datatype-for-currencies-in-mysql

问题 I want to store values in a bunch of currencies and I'm not too keen on the imprecise nature of floats. Being able to do math on them directly in queries is also a requirement. Is Decimal the way to go here? 回答1: Decimal is the best way to go. You can still do math within the queries. 来源： https://stackoverflow.com/questions/248512/what-is-the-best-datatype-for-currencies-in-mysql

问题 I'm experiencing issues when converting decimal to currency for Korean Won, Cambodian Riel and Iranian Rial and showing the result to the UILabel text. Conversion itself passes just fine and I can see correct currency symbol at the debugger, even the NSLog prints the symbol well. If I assign this NSString instance to the UILabel text, the currency symbol is shown as a crossed box instead of the correct symbol. There is no other code between, does not matter what font I use. I tried to print ₩

问题 I'm trying to do something I'd think would be fairly simple: Let a user input a dollar amount, store that amount in an NSNumber (NSDecimalNumber?), then display that amount formatted as currency again at some later time. My trouble is not so much with the setNumberStyle:NSNumberFormatterCurrencyStyle and displaying floats as currency. The trouble is more with how said numberFormatter works with this UITextField. I can find few examples. This thread from November and this one give me some

问题 I having some problems getting the default currency symbol of the system. I am getting the currency symbol this way: Currency currency = Currency.getInstance(Locale.getDefault()); Log.v("TAG",currency.getSymbol()); When the system language is in English (United States) the right symbol shows up ( $ ). But when i choose the language Portuguese (Portugal) it returns this symbol ¤ . What can be causing this? 回答1: This seems to be a known issue (http://code.google.com/p/android/issues/detail?id

问题 In Java, how can I efficiently convert floats like 1234.56 and similar BigDecimals into Strings like $1,234.56 I'm looking for the following: String 12345.67 becomes String $12,345.67 I'm also looking to do this with Float and BigDecimal as well. 回答1: There's a locale-sensitive idiom that works well: import java.text.NumberFormat; // Get a currency formatter for the current locale. NumberFormat fmt = NumberFormat.getCurrencyInstance(); System.out.println(fmt.format(120.00)); If your current

问题 What is a regular expression suitable for C# that'll validate a number if it matches the following? $1,000,000.150 $10000000.199 $10000 1,000,000.150 100000.123 10000 Or the negative equivalents? 回答1: You can use csmba's regex if you make one slight modification to it. ^\$?(\d{1,3},?(\d{3},?)*\d{3}(.\d{0,3})?|\d{1,3}(.\d{2})?)$ 回答2: I think ssg is right. It's not a really good use of Regex, especially if your software has to deal with non-US centric data entry. For instance, if the currency

问题 What class should I use for representation of money to avoid most rounding errors? Should I use Decimal , or a simple built-in number ? Is there any existing Money class with support for currency conversion that I could use? Any pitfalls that I should avoid? 回答1: I assume that you talking about Python. http://code.google.com/p/python-money/ "Primitives for working with money and currencies in Python" - the title is self explanatory :) 回答2: Never use a floating point number to represent money.

问题 What class should I use for representation of money to avoid most rounding errors? Should I use Decimal , or a simple built-in number ? Is there any existing Money class with support for currency conversion that I could use? Any pitfalls that I should avoid? 回答1: I assume that you talking about Python. http://code.google.com/p/python-money/ "Primitives for working with money and currencies in Python" - the title is self explanatory :) 回答2: Never use a floating point number to represent money.