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iOS 生成UUID

iOS 生成UUID

作者: Bager | 来源:发表于2017-05-18 09:52 被阅读2382次
+ (NSString *)uuidString
{
    CFUUIDRef uuid_ref = CFUUIDCreate(NULL);
    CFStringRef uuid_string_ref= CFUUIDCreateString(NULL, uuid_ref);
    NSString *uuid = [NSString stringWithString:(__bridge NSString *)uuid_string_ref];
    CFRelease(uuid_ref);
    CFRelease(uuid_string_ref);
    return [uuid lowercaseString];
}

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