代码：

#import "RootViewController.h"//为判断手机的型号 -(NSString*)deviceString添加头文件#import "sys/utsname.h"@interface RootViewController ()@end@implementation RootViewController- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];    if (self) {        // Custom initialization    }    return self;}- (void)viewDidLoad{    [super viewDidLoad];    // Do any additional setup after loading the view.        NSLog(@"----systemVersion---%@",[self systemVersion]);        if ([self isIphone5]) {        NSLog(@"----is Iphone5---");    }else{        NSLog(@"----not a Iphone5---");    }        NSLog(@"----deviceString---%@",[self deviceString]);        NSLog(@"---getDeviceModel---%@--",[self getDeviceModel]);}#pragma -mark -系统版本判断（也就是iOS7.0,iOS6.0的判断） 输出：7.1-(NSString*)systemVersion{    return [[UIDevice currentDevice] systemVersion];}#pragma -mark -判断手机是否为iphone5(也就是在iphon4,iphone5做判断)- (BOOL) isIphone5{    if ([UIScreen instancesRespondToSelector:@selector(currentMode)]) {        return CGSizeEqualToSize(CGSizeMake(640, 1136), [[UIScreen mainScreen] currentMode].size);    }    else    {        return NO;    }}#pragma -mark -判断手机型号简写版// 需要#import "sys/utsname.h"-(NSString *)getDeviceModel{    struct utsname u;    uname(&u);    NSString *modelVersion = [NSString stringWithFormat:@"%s", u.machine];    return modelVersion;}#pragma -mark -判断手机的型号详细版//判断手机的型号// 需要#import "sys/utsname.h"- (NSString*)deviceString{        struct utsname systemInfo;    uname(&systemInfo);    NSString *deviceString = [NSString stringWithCString:systemInfo.machine encoding:NSUTF8StringEncoding];        if ([deviceString isEqualToString:@"iPhone1,1"])    return @"iPhone 1G";    if ([deviceString isEqualToString:@"iPhone1,2"])    return @"iPhone 3G";    if ([deviceString isEqualToString:@"iPhone2,1"])    return @"iPhone 3GS";    if ([deviceString isEqualToString:@"iPhone3,1"])    return @"iPhone 4";    if ([deviceString isEqualToString:@"iPhone4,1"])    return @"iPhone 4S";    if ([deviceString isEqualToString:@"iPhone5,2"])    return @"iPhone 5";    if ([deviceString isEqualToString:@"iPhone3,2"])    return @"Verizon iPhone 4";    if ([deviceString isEqualToString:@"iPod1,1"])      return @"iPod Touch 1G";    if ([deviceString isEqualToString:@"iPod2,1"])      return @"iPod Touch 2G";    if ([deviceString isEqualToString:@"iPod3,1"])      return @"iPod Touch 3G";    if ([deviceString isEqualToString:@"iPod4,1"])      return @"iPod Touch 4G";    if ([deviceString isEqualToString:@"iPad1,1"])      return @"iPad";    if ([deviceString isEqualToString:@"iPad2,1"])      return @"iPad 2 (WiFi)";    if ([deviceString isEqualToString:@"iPad2,2"])      return @"iPad 2 (GSM)";    if ([deviceString isEqualToString:@"iPad2,3"])      return @"iPad 2 (CDMA)";    if ([deviceString isEqualToString:@"i386"])         return @"Simulator";    if ([deviceString isEqualToString:@"x86_64"])       return @"Simulator";    NSLog(@"NOTE: Unknown device type: %@", deviceString);    return deviceString;}- (void)didReceiveMemoryWarning{    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}

 

输出：

2015-10-15 14:09:05.486 对iphone手机进行判断的一些函数[3478:155689] ----systemVersion---8.12015-10-15 14:09:05.487 对iphone手机进行判断的一些函数[3478:155689] ----is Iphone5---2015-10-15 14:09:05.487 对iphone手机进行判断的一些函数[3478:155689] ----deviceString---Simulator2015-10-15 14:09:05.487 对iphone手机进行判断的一些函数[3478:155689] ---getDeviceModel---x86_64--