System.Globalization.CultureInfo MyCulture = new
System.Globalization.CultureInfo(“en-US“);
//System.Globalization.CultureInfo MyCulture = new
System.Globalization.CultureInfo(“en-GB“);为英国货币类型
decimal y = 9999999999999999999999999999m;
string str = String.Format(MyCulture,“My amount = {0:c}“,y);