iphone - 如何将货币从字符串格式转换为数字格式？

Question

我需要将货币从字符串格式转换为数字格式。

例如我的字符串变量值是@"10 lakh". 转换为数字格式的字符串值为 1000000。如何进行这种类型的转换？

（将 100 万转换为 1000000，这就是问题所在）

Answer 1

尝试

- (NSNumber *)multiplierForKey:(NSString *)key
{

    NSDictionary *dict = @{@"thousand":@1000, @"lakh":@100000, @"million":@1000000, @"crore":@100000000};
    NSNumber *value = dict[[key lowercaseString]];
    return value?value:@1;
}

- (void)findMultiplier{

    NSString *string = @"10 lakh";

    NSArray *components = [string componentsSeparatedByString:@" "];

    if ([components count]==2) {
        NSNumber *value = components[0];
        NSString *key = components[1];
        NSNumber *multiplier = [self multiplierForKey:key];

        NSDecimalNumber *decimalValue = [NSDecimalNumber decimalNumberWithDecimal:[value decimalValue]];
        NSDecimalNumber *multiplierValue = [NSDecimalNumber decimalNumberWithDecimal:[multiplier decimalValue]];

        NSDecimalNumber *finalValue = [decimalValue decimalNumberByMultiplyingBy:multiplierValue];
        NSLog(@"Value : %@",finalValue);
    }
}

Answer 2

You can make switch cases according to your denominations. By choosing particular switch case you can choose the desired value. I don't think there is predefined method to accomplish this.

hope this helps.