blocks|key|4700526|text|您可以使用sysctl|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4700527|#import+<Foundation/Foundation.h>
#import+<sys/sysctl.h>

NSString+*ModelIdentifier()
{
++++NSString+*result=@"Unknown+Mac";
++++size_t+len=0;
++++sysctlbyname("hw.model",+NULL,+&len,+NULL,+0);
++++if+(len)+{
++++++++NSMutableData+*data=[NSMutableData+dataWithLength:len];
++++++++sysctlbyname("hw.model",+[data+mutableBytes],+&len,+NULL,+0);
++++++++result=[NSString+stringWithUTF8String:[data+bytes]];
++++}
++++return+result;
}|code-block|syntax|javascript|4700528|entityMap^0|5|6|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

You can use <code>sysctl</code> 

<pre><code>#import &lt;Foundation/Foundation.h&gt;
#import &lt;sys/sysctl.h&gt;

NSString *ModelIdentifier()
{
 NSString *result=@"Unknown Mac";
 size_t len=0;
 sysctlbyname("hw.model", NULL, &amp;len, NULL, 0);
 if (len) {
 NSMutableData *data=[NSMutableData dataWithLength:len];
 sysctlbyname("hw.model", [data mutableBytes], &amp;len, NULL, 0);
 result=[NSString stringWithUTF8String:[data bytes]];
 }
 return result;
}
</code></pre>

blocks|key|4700536|text|CFStringRef+model+=+IORegistryEntryCreateCFProperty(service,+
++++++++++++++++++++++++++++++++++++++++++++++++++++++++CFSTR("model"),+
++++++++++++++++++++++++++++++++++++++++++++++++++++++++kCFAllocatorDefault,+
++++++++++++++++++++++++++++++++++++++++++++++++++++++++0);++?+type+is+ok+?|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|4700537|我认为代码可能是这样的：|unstyled|4700538|CFSDataRef+model+=+IORegistryEntryCreateCFProperty(service,+
++++++++++++++++++++++++++++++++++++++++++++++++++++++++CFSTR("model"),+
++++++++++++++++++++++++++++++++++++++++++++++++++++++++kCFAllocatorDefault,+
++++++++++++++++++++++++++++++++++++++++++++++++++++++++0);++|4700539|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|L|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|I|3|-4|5|F|7|N|8|@]|9|@]|A|$]]]|J|$]]

<pre><code>CFStringRef model = IORegistryEntryCreateCFProperty(service, 
 CFSTR("model"), 
 kCFAllocatorDefault, 
 0); ? type is ok ?
</code></pre>

I think code maybe like this:

<pre><code>CFSDataRef model = IORegistryEntryCreateCFProperty(service, 
 CFSTR("model"), 
 kCFAllocatorDefault, 
 0); 
</code></pre>

blocks|key|4700607|text|Answer+from+Ryan+H是正确的，除了从null-terminated+string到Swift+String的错误转换，最后给出的结果是\0符号，这可能是您不希望的，执行完全匹配。这是更正后的版本：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4700608|static+private+func+modelIdentifier()+->+String?+{
++++let+service+=+IOServiceGetMatchingService(kIOMasterPortDefault,+IOServiceMatching("IOPlatformExpertDevice"))
++++defer+{+IOObjectRelease(service)+}

++++if+let+modelData+=+IORegistryEntryCreateCFProperty(service,+"model"+as+CFString,+kCFAllocatorDefault,+0).takeRetainedValue()+as?+Data+{
++++++++return+modelData.withUnsafeBytes+{+(cString:+UnsafePointer<UInt8>)+->+String+in
++++++++++++return+String(cString:+cString)
++++++++}
++++}

++++return+nil
}|code-block|syntax|javascript|4700609|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/50008492/1107913^0|Q|M|1D|C|23|2|0|I|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]|$9|V|A|W|B|C]|$9|X|A|Y|B|C]]|D|@$9|Z|A|10|1|11]]|E|$]]|$1|F|3|G|5|H|7|12|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|13|8|@]|D|@]|E|$]]]|L|$M|$5|N|O|P|E|$Q|R]]]]

<a href="https://stackoverflow.com/a/50008492/1107913">Answer from Ryan H</a> is correct except improper conversion from <code>null-terminated string</code> to <code>Swift String</code>, giving result with <code>\0</code> symbol in the end, which you may not expect, performing full match. This is corrected version: 

<pre><code>static private func modelIdentifier() -&gt; String? {
 let service = IOServiceGetMatchingService(kIOMasterPortDefault, IOServiceMatching("IOPlatformExpertDevice"))
 defer { IOObjectRelease(service) }

 if let modelData = IORegistryEntryCreateCFProperty(service, "model" as CFString, kCFAllocatorDefault, 0).takeRetainedValue() as? Data {
 return modelData.withUnsafeBytes { (cString: UnsafePointer&lt;UInt8&gt;) -&gt; String in
 return String(cString: cString)
 }
 }

 return nil
}
</code></pre>

Every Mac has a model identifier, for example "Macmini5,1". (These are shown in the System Information app.)

<img src="https://i.stack.imgur.com/99y4x.png" alt="enter image description here">

How can I programatically obtain this model identifier string?

Obtain Model Identifier string on OS X

Swift

每个Mac都有一个型号标识符，例如"Macmini5,1“。(这些内容显示在系统信息应用程序中。)​​如何通过编程获得此模型标识符字符串？

问在OS X上获取型号标识符字符串
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