Iphone 将属性转换为NSString

在我的通讯簿应用程序中，当我获取联系人的电子邮件id时，我会设置如下内容：

ABMultiValueRef 0x2994e0 with 1 value(s)
0: null (0x3f5655e0) - xyz@gmail.com (0x2994b0)

如何获取字符串值，即仅获取

 xyz@gmail.com

从上面的结果

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谢谢

发布您的代码。ABMultiValueRef。。。看起来像是一个数组，您可能正在将其转换为NSString

// This is what you have currently (i.e. the multivalues)
ABMultiValueRef emailValues = ABRecordCopyValue(person, kABPersonEmailProperty);

// This is how you extract the first item from the multivalues:
CFStringRef cfEmailAddress = ABMultiValueCopyValueAtIndex(emailValues, 0);

// This is how you convert it to an NSString.
NSString *emailAddress = CFBridgingRelease(cfEmailAddress);