解析语言环境特定字符串的编号？

Question

我得从法国数式串数目：@“30.000,00” 当我使用NSNumberFormattern解析

NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init]; 
NSNumber *priceNumberValue = [numberFormatter numberFromString:@30.000"]; 

它返回30，我的预期收益是30000 我尝试使用其他选项

NSLocale *vnLocale = [[NSLocale alloc] initWithLocaleIdentifier:@"fr_FR"]; 
[numberFormatter setLocale:vnLocale]; 

或

[numberFormatter setDecimalSeparator:@","]; 

，但它仍然会返回意外的值：30

什么是正确的方式告诉NSNumberFormatter parse @“30.000,00”？

Answer 1

设置区域应该工作，但你必须告诉的NumberFormatter使用分组分隔符：

[numberFormatter setUsesGroupingSeparator:YES]; 

如果不工作，下面肯定会工作：

NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init]; 
[numberFormatter setDecimalSeparator:@","]; 
[numberFormatter setGroupingSeparator:@"."]; 
[numberFormatter setUsesGroupingSeparator:YES]; 
NSNumber *priceNumberValue = [numberFormatter numberFromString:@"30.000,00"]; 

检查完此后，“fr-FR”语言环境似乎没有您期望的属性。但是，使用“fr-BE”语言环境可以正常工作：

NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init]; 
NSLocale *locale = [[NSLocale alloc] initWithLocaleIdentifier:@"fr_BE"]; 
[numberFormatter setLocale:locale]; 
[locale release]; 
[numberFormatter setUsesGroupingSeparator:YES]; 
NSNumber *priceNumberValue = [numberFormatter numberFromString:@"30.000,00"];