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超全的iOS各种设备信息获取方法总结(包括iPhone8/iPhone X)

转载 作者：qq735679552 更新时间：2022-09-27 22:32:09 25 4
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前言 。

在开发中，有的时候为了统计用户信息、下发广告，服务器端往往需要手机用户设备及app的各种信息，这些信息的获取可以根据不同的设备或者app、系统版本来提供不同的功能或更好的用户体验，或者让开发者能更好的分析用户的问题原因.

下面讲述一下各种信息的获取方式:

超全的iOS各种设备信息获取方法总结(包括iPhone8/iPhone X)

超全的iOS各种设备信息获取方法总结(包括iPhone8/iPhone X)

超全的iOS各种设备信息获取方法总结(包括iPhone8/iPhone X)

超全的iOS各种设备信息获取方法总结(包括iPhone8/iPhone X)

点击下载以上展示效果的github源码 。

一行代码就搞定的统一来！ 。

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// 这个方法后面会列出来
nsstring *devicename = [self getdevicename];
nslog(@ "设备型号-->%@" , devicename);
nsstring *iphonename = [uidevice currentdevice].name;
nslog(@ "iphone名称-->%@" , iphonename);
nsstring *appverion = [[[nsbundle mainbundle] infodictionary] objectforkey:@ "cfbundleshortversionstring" ];
nslog(@ "app版本号-->%@" , appverion);
cgfloat batterylevel = [[uidevice currentdevice] batterylevel];
nslog(@ "电池电量-->%f" , batterylevel);
nsstring *localizedmodel = [uidevice currentdevice].localizedmodel;
nslog(@ "localizedmodel-->%@" , localizedmodel);
nsstring *systemname = [uidevice currentdevice].systemname;
nslog(@ "当前系统名称-->%@" , systemname);
nsstring *systemversion = [uidevice currentdevice].systemversion;
nslog(@ "当前系统版本号-->%@" , systemversion);
struct utsname systeminfo;
uname(&systeminfo);
nsstring *device_model = [nsstring stringwithcstring:systeminfo.machine encoding:nsutf8stringencoding];
nslog(@ "device_model-->%@" , device_model);
// 这个方法后面会单独列出
nsstring *macaddress = [self getmacaddress];
nslog(@ "macaddress-->%@" , macaddress);
// 这个方法后面会单独列出
nsstring *deviceip = [self getdeviceipaddresses];
nslog(@ "deviceip-->%@" , deviceip);
// 设备上次重启的时间
nstimeinterval time = [[nsprocessinfo processinfo] systemuptime];
nsdate *lastrestartdate = [[nsdate alloc] initwithtimeintervalsincenow:(0 - time )];

广告位标识符：在同一个设备上的所有app都会取到相同的值，是苹果专门给各广告提供商用来追踪用户而设的，用户可以在 设置|隐私|广告追踪里重置此id的值，或限制此id的使用，故此id有可能会取不到值，但好在apple默认是允许追踪的，而且一般用户都不知道有这么个设置，所以基本上用来监测推广效果，是戳戳有余了 。

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nsstring *idfa = [[[asidentifiermanager sharedmanager] advertisingidentifier] uuidstring];
nslog(@ "广告位标识符idfa-->%@" , idfa);

uuid是universally unique identifier的缩写，中文意思是通用唯一识别码。它是让分布式系统中的所有元素，都能有唯一的辨识资讯，而不需要透过中央控制端来做辨识资讯的指 定。这样，每个人都可以建立不与其它人冲突的 uuid。在此情况下，就不需考虑数据库建立时的名称重复问题。苹果公司建议使用uuid为应用生成唯一标识字符串.

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nsstring * uuid = [[[uidevice currentdevice] identifierforvendor] uuidstring];
nslog(@ "唯一识别码uuid-->%@" , uuid );

获取设备型号 。

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// 获取设备型号然后手动转化为对应名称
- (nsstring *)getdevicename
{
  // 需要#import "sys/utsname.h"
  #warning 题主呕心沥血总结！！最全面！亲测！全网独此一份！！
  struct utsname systeminfo;
  uname(&systeminfo);
  nsstring *devicestring = [nsstring stringwithcstring:systeminfo.machine encoding:nsutf8stringencoding];
  if ([devicestring isequaltostring:@ "iphone3,1" ]) return @ "iphone 4" ;
  if ([devicestring isequaltostring:@ "iphone3,2" ]) return @ "iphone 4" ;
  if ([devicestring isequaltostring:@ "iphone3,3" ]) return @ "iphone 4" ;
  if ([devicestring isequaltostring:@ "iphone4,1" ]) return @ "iphone 4s" ;
  if ([devicestring isequaltostring:@ "iphone5,1" ]) return @ "iphone 5" ;
  if ([devicestring isequaltostring:@ "iphone5,2" ]) return @ "iphone 5 (gsm+cdma)" ;
  if ([devicestring isequaltostring:@ "iphone5,3" ]) return @ "iphone 5c (gsm)" ;
  if ([devicestring isequaltostring:@ "iphone5,4" ]) return @ "iphone 5c (gsm+cdma)" ;
  if ([devicestring isequaltostring:@ "iphone6,1" ]) return @ "iphone 5s (gsm)" ;
  if ([devicestring isequaltostring:@ "iphone6,2" ]) return @ "iphone 5s (gsm+cdma)" ;
  if ([devicestring isequaltostring:@ "iphone7,1" ]) return @ "iphone 6 plus" ;
  if ([devicestring isequaltostring:@ "iphone7,2" ]) return @ "iphone 6" ;
  if ([devicestring isequaltostring:@ "iphone8,1" ]) return @ "iphone 6s" ;
  if ([devicestring isequaltostring:@ "iphone8,2" ]) return @ "iphone 6s plus" ;
  if ([devicestring isequaltostring:@ "iphone8,4" ]) return @ "iphone se" ;
  // 日行两款手机型号均为日本独占，可能使用索尼felica支付方案而不是苹果支付
  if ([devicestring isequaltostring:@ "iphone9,1" ]) return @ "国行、日版、港行iphone 7" ;
  if ([devicestring isequaltostring:@ "iphone9,2" ]) return @ "港行、国行iphone 7 plus" ;
  if ([devicestring isequaltostring:@ "iphone9,3" ]) return @ "美版、台版iphone 7" ;
  if ([devicestring isequaltostring:@ "iphone9,4" ]) return @ "美版、台版iphone 7 plus" ;
  if ([devicestring isequaltostring:@ "iphone10,1" ]) return @ "国行(a1863)、日行(a1906)iphone 8" ;
  if ([devicestring isequaltostring:@ "iphone10,4" ]) return @ "美版(global/a1905)iphone 8" ;
  if ([devicestring isequaltostring:@ "iphone10,2" ]) return @ "国行(a1864)、日行(a1898)iphone 8 plus" ;
  if ([devicestring isequaltostring:@ "iphone10,5" ]) return @ "美版(global/a1897)iphone 8 plus" ;
  if ([devicestring isequaltostring:@ "iphone10,3" ]) return @ "国行(a1865)、日行(a1902)iphone x" ;
  if ([devicestring isequaltostring:@ "iphone10,6" ]) return @ "美版(global/a1901)iphone x" ;
  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:@ "ipod5,1" ]) return @ "ipod touch (5 gen)" ;
  if ([devicestring isequaltostring:@ "ipad1,1" ]) return @ "ipad" ;
  if ([devicestring isequaltostring:@ "ipad1,2" ]) return @ "ipad 3g" ;
  if ([devicestring isequaltostring:@ "ipad2,1" ]) return @ "ipad 2 (wifi)" ;
  if ([devicestring isequaltostring:@ "ipad2,2" ]) return @ "ipad 2" ;
  if ([devicestring isequaltostring:@ "ipad2,3" ]) return @ "ipad 2 (cdma)" ;
  if ([devicestring isequaltostring:@ "ipad2,4" ]) return @ "ipad 2" ;
  if ([devicestring isequaltostring:@ "ipad2,5" ]) return @ "ipad mini (wifi)" ;
  if ([devicestring isequaltostring:@ "ipad2,6" ]) return @ "ipad mini" ;
  if ([devicestring isequaltostring:@ "ipad2,7" ]) return @ "ipad mini (gsm+cdma)" ;
  if ([devicestring isequaltostring:@ "ipad3,1" ]) return @ "ipad 3 (wifi)" ;
  if ([devicestring isequaltostring:@ "ipad3,2" ]) return @ "ipad 3 (gsm+cdma)" ;
  if ([devicestring isequaltostring:@ "ipad3,3" ]) return @ "ipad 3" ;
  if ([devicestring isequaltostring:@ "ipad3,4" ]) return @ "ipad 4 (wifi)" ;
  if ([devicestring isequaltostring:@ "ipad3,5" ]) return @ "ipad 4" ;
  if ([devicestring isequaltostring:@ "ipad3,6" ]) return @ "ipad 4 (gsm+cdma)" ;
  if ([devicestring isequaltostring:@ "ipad4,1" ]) return @ "ipad air (wifi)" ;
  if ([devicestring isequaltostring:@ "ipad4,2" ]) return @ "ipad air (cellular)" ;
  if ([devicestring isequaltostring:@ "ipad4,4" ]) return @ "ipad mini 2 (wifi)" ;
  if ([devicestring isequaltostring:@ "ipad4,5" ]) return @ "ipad mini 2 (cellular)" ;
  if ([devicestring isequaltostring:@ "ipad4,6" ]) return @ "ipad mini 2" ;
  if ([devicestring isequaltostring:@ "ipad4,7" ]) return @ "ipad mini 3" ;
  if ([devicestring isequaltostring:@ "ipad4,8" ]) return @ "ipad mini 3" ;
  if ([devicestring isequaltostring:@ "ipad4,9" ]) return @ "ipad mini 3" ;
  if ([devicestring isequaltostring:@ "ipad5,1" ]) return @ "ipad mini 4 (wifi)" ;
  if ([devicestring isequaltostring:@ "ipad5,2" ]) return @ "ipad mini 4 (lte)" ;
  if ([devicestring isequaltostring:@ "ipad5,3" ]) return @ "ipad air 2" ;
  if ([devicestring isequaltostring:@ "ipad5,4" ]) return @ "ipad air 2" ;
  if ([devicestring isequaltostring:@ "ipad6,3" ]) return @ "ipad pro 9.7" ;
  if ([devicestring isequaltostring:@ "ipad6,4" ]) return @ "ipad pro 9.7" ;
  if ([devicestring isequaltostring:@ "ipad6,7" ]) return @ "ipad pro 12.9" ;
  if ([devicestring isequaltostring:@ "ipad6,8" ]) return @ "ipad pro 12.9" ;
  if ([machinestring isequaltostring:@ "ipad6,11" ]) return @ "ipad 5 (wifi)" ;
  if ([machinestring isequaltostring:@ "ipad6,12" ]) return @ "ipad 5 (cellular)" ;
  if ([machinestring isequaltostring:@ "ipad7,1" ]) return @ "ipad pro 12.9 inch 2nd gen (wifi)" ;
  if ([machinestring isequaltostring:@ "ipad7,2" ]) return @ "ipad pro 12.9 inch 2nd gen (cellular)" ;
  if ([machinestring isequaltostring:@ "ipad7,3" ]) return @ "ipad pro 10.5 inch (wifi)" ;
  if ([machinestring isequaltostring:@ "ipad7,4" ]) return @ "ipad pro 10.5 inch (cellular)" ;
  if ([devicestring isequaltostring:@ "appletv2,1" ]) return @ "apple tv 2" ;
  if ([devicestring isequaltostring:@ "appletv3,1" ]) return @ "apple tv 3" ;
  if ([devicestring isequaltostring:@ "appletv3,2" ]) return @ "apple tv 3" ;
  if ([devicestring isequaltostring:@ "appletv5,3" ]) return @ "apple tv 4" ;
  if ([devicestring isequaltostring:@ "i386" ]) return @ "simulator" ;
  if ([devicestring isequaltostring:@ "x86_64" ]) return @ "simulator" ;
 
  return devicestring;
}

获取 iphone 设备颜色/外壳颜色 。

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#warning 该方法是私有api，上线会被拒
// 由于每款手机同一颜色具体色号不一样，如 iphone 6和 iphone se粉色的两个具体色值是不一样的，因此在这里只能返回一个色号
uidevice *device = [uidevice currentdevice];
sel selector = nsselectorfromstring(@ "deviceinfoforkey:" );
if (![device respondstoselector:selector]) {
  selector = nsselectorfromstring(@ "_deviceinfoforkey:" );
}
if ([device respondstoselector:selector]) {
  // 消除警告“performselector may cause a leak because its selector is unknown”
  imp imp = [device methodforselector:selector];
  nsstring * (*func)(id, sel, nsstring *) = ( void *)imp;
  nsstring *devicecolor = func(device, selector, @ "devicecolor" );
  nsstring *deviceenclosurecolor = func(device, selector, @ "deviceenclosurecolor" );
  nslog(@ "devicecolor --> %@ \n @" deviceenclosurecolor --> %@ ", devicecolor, deviceenclosurecolor);
}

这里是一些已知的设备颜色 。

mac 地址 。

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- (nsstring *)getmacaddress {
  int mib[6];
  size_t len;
  char *buf;
  unsigned char *ptr;
  struct if_msghdr *ifm;
  struct sockaddr_dl *sdl;
  mib[0] = ctl_net;
  mib[1] = af_route;
  mib[2] = 0;
  mib[3] = af_link;
  mib[4] = net_rt_iflist;
  if ((mib[5] = if_nametoindex( "en0" )) == 0) {
  printf ( "error: if_nametoindex error/n" );
  return null;
  }
  if (sysctl(mib, 6, null, &len, null, 0) < 0) {
  printf ( "error: sysctl, take 1/n" );
  return null;
  }
  if ((buf = malloc (len)) == null) {
  printf ( "could not allocate memory. error!/n" );
  return null;
  }
  if (sysctl(mib, 6, buf, &len, null, 0) < 0) {
  printf ( "error: sysctl, take 2" );
  return null;
  }
  ifm = ( struct if_msghdr *)buf;
  sdl = ( struct sockaddr_dl *)(ifm + 1);
  ptr = (unsigned char *)lladdr(sdl);
  nsstring *outstring = [nsstring stringwithformat:@ "%02x%02x%02x%02x%02x%02x" , *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), *(ptr+5)];
  free (buf);
  return [outstring uppercasestring];
}

ip地址 。

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- (nsstring *)getdeviceipaddresses {
  int sockfd = socket(af_inet, sock_dgram, 0);
  nsmutablearray *ips = [nsmutablearray array];
  int buffersize = 4096;
  struct ifconf ifc;
  char buffer[buffersize], *ptr, lastname[ifnamsiz], *cptr;
  struct ifreq *ifr, ifrcopy;
  ifc.ifc_len = buffersize;
  ifc.ifc_buf = buffer;
  if (ioctl(sockfd, siocgifconf, &ifc) >= 0){
  for (ptr = buffer; ptr < buffer + ifc.ifc_len; ){ 
   ifr = ( struct ifreq *)ptr;
   int len = sizeof ( struct sockaddr);
  
   if (ifr->ifr_addr.sa_len > len) {
   len = ifr->ifr_addr.sa_len;
   } 
   ptr += sizeof (ifr->ifr_name) + len;
   if (ifr->ifr_addr.sa_family != af_inet) continue ;
   if ((cptr = ( char *) strchr (ifr->ifr_name, ':' )) != null) *cptr = 0;
   if ( strncmp (lastname, ifr->ifr_name, ifnamsiz) == 0) continue ;
  
   memcpy (lastname, ifr->ifr_name, ifnamsiz);
   ifrcopy = *ifr;
   ioctl(sockfd, siocgifflags, &ifrcopy);
  
   if ((ifrcopy.ifr_flags & iff_up) == 0) continue ; 
   nsstring *ip = [nsstring stringwithformat:@ "%s" , inet_ntoa((( struct sockaddr_in *)&ifr->ifr_addr)->sin_addr)];
   [ips addobject:ip];
  }
  }
  close(sockfd);
  nsstring *deviceip = @ "" ;
  for ( int i=0; i < ips.count; i++) {
  if (ips.count > 0) {
   deviceip = [nsstring stringwithformat:@ "%@" ,ips.lastobject];
  }
  }
  return deviceip;
}

cpu 。

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// cpu总数目
- (nsuinteger)getcpucount {
  return [nsprocessinfo processinfo].activeprocessorcount;
}
// 已使用的cpu比例
- ( float )getcpuusage {
  float cpu = 0;
  nsarray *cpus = [self getpercpuusage];
  if (cpus.count == 0) return -1;
  for (nsnumber *n in cpus) {
  cpu += n.floatvalue;
  }
  return cpu;
}
// 获取每个cpu的使用比例
- (nsarray *)getpercpuusage {
  processor_info_array_t _cpuinfo, _prevcpuinfo = nil;
  mach_msg_type_number_t _numcpuinfo, _numprevcpuinfo = 0;
  unsigned _numcpus;
  nslock *_cpuusagelock;
  int _mib[2u] = { ctl_hw, hw_ncpu };
  size_t _sizeofnumcpus = sizeof (_numcpus);
  int _status = sysctl(_mib, 2u, &_numcpus, &_sizeofnumcpus, null, 0u);
  if (_status)
  _numcpus = 1;
  _cpuusagelock = [[nslock alloc] init];
  natural_t _numcpusu = 0u;
  kern_return_t err = host_processor_info(mach_host_self(), processor_cpu_load_info, &_numcpusu, &_cpuinfo, &_numcpuinfo);
  if (err == kern_success) {
  [_cpuusagelock lock];
  nsmutablearray *cpus = [nsmutablearray new ];
  for (unsigned i = 0u; i < _numcpus; ++i) {
   float32 _inuse, _total;
   if (_prevcpuinfo) {
   _inuse = (
     (_cpuinfo[(cpu_state_max * i) + cpu_state_user] - _prevcpuinfo[(cpu_state_max * i) + cpu_state_user])
     + (_cpuinfo[(cpu_state_max * i) + cpu_state_system] - _prevcpuinfo[(cpu_state_max * i) + cpu_state_system])
     + (_cpuinfo[(cpu_state_max * i) + cpu_state_nice] - _prevcpuinfo[(cpu_state_max * i) + cpu_state_nice])
     );
   _total = _inuse + (_cpuinfo[(cpu_state_max * i) + cpu_state_idle] - _prevcpuinfo[(cpu_state_max * i) + cpu_state_idle]);
   } else {
   _inuse = _cpuinfo[(cpu_state_max * i) + cpu_state_user] + _cpuinfo[(cpu_state_max * i) + cpu_state_system] + _cpuinfo[(cpu_state_max * i) + cpu_state_nice];
   _total = _inuse + _cpuinfo[(cpu_state_max * i) + cpu_state_idle];
   }
   [cpus addobject:@(_inuse / _total)];
  }
  [_cpuusagelock unlock];
  if (_prevcpuinfo) {
   size_t prevcpuinfosize = sizeof (integer_t) * _numprevcpuinfo;
   vm_deallocate(mach_task_self(), (vm_address_t)_prevcpuinfo, prevcpuinfosize);
  }
  return cpus;
  } else {
  return nil;
  }
}

disk磁盘空间 。

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// 获取磁盘总空间
- (int64_t)gettotaldiskspace {
  nserror *error = nil;
  nsdictionary *attrs = [[nsfilemanager defaultmanager] attributesoffilesystemforpath:nshomedirectory() error:&error];
  if (error) return -1;
  int64_t space = [[attrs objectforkey:nsfilesystemsize] longlongvalue];
  if (space < 0) space = -1;
  return space;
}
// 获取未使用的磁盘空间
- (int64_t)getfreediskspace {
  nserror *error = nil;
  nsdictionary *attrs = [[nsfilemanager defaultmanager] attributesoffilesystemforpath:nshomedirectory() error:&error];
  if (error) return -1;
  int64_t space = [[attrs objectforkey:nsfilesystemfreesize] longlongvalue];
  if (space < 0) space = -1;
  return space;
}
// 获取已使用的磁盘空间
- (int64_t)getuseddiskspace {
  int64_t totaldisk = [self gettotaldiskspace];
  int64_t freedisk = [self getfreediskspace];
  if (totaldisk < 0 || freedisk < 0) return -1;
  int64_t useddisk = totaldisk - freedisk;
  if (useddisk < 0) useddisk = -1;
  return useddisk;
}

memory内存相关数据 。

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// 系统总内存空间
- (int64_t)gettotalmemory {
  int64_t totalmemory = [[nsprocessinfo processinfo] physicalmemory];
  if (totalmemory < -1) totalmemory = -1;
  return totalmemory;
}
// 活跃的内存,正在使用或者很短时间内被使用过
- (int64_t)getactivememory {
  mach_port_t host_port = mach_host_self();
  mach_msg_type_number_t host_size = sizeof (vm_statistics_data_t) / sizeof (integer_t);
  vm_size_t page_size;
  vm_statistics_data_t vm_stat;
  kern_return_t kern;
  kern = host_page_size(host_port, &page_size);
  if (kern != kern_success) return -1;
  kern = host_statistics(host_port, host_vm_info, (host_info_t)&vm_stat, &host_size);
  if (kern != kern_success) return -1;
  return vm_stat.active_count * page_size;
}
// 最近使用过,但是目前处于不活跃状态的内存
- (int64_t)getinactivememory {
  mach_port_t host_port = mach_host_self();
  mach_msg_type_number_t host_size = sizeof (vm_statistics_data_t) / sizeof (integer_t);
  vm_size_t page_size;
  vm_statistics_data_t vm_stat;
  kern_return_t kern;
  kern = host_page_size(host_port, &page_size);
  if (kern != kern_success) return -1;
  kern = host_statistics(host_port, host_vm_info, (host_info_t)&vm_stat, &host_size);
  if (kern != kern_success) return -1;
  return vm_stat.inactive_count * page_size;
}
// 空闲的内存空间
- (int64_t)getfreememory {
  mach_port_t host_port = mach_host_self();
  mach_msg_type_number_t host_size = sizeof (vm_statistics_data_t) / sizeof (integer_t);
  vm_size_t page_size;
  vm_statistics_data_t vm_stat;
  kern_return_t kern;
  kern = host_page_size(host_port, &page_size);
  if (kern != kern_success) return -1;
  kern = host_statistics(host_port, host_vm_info, (host_info_t)&vm_stat, &host_size);
  if (kern != kern_success) return -1;
  return vm_stat.free_count * page_size;
}
// 已使用的内存空间
- (int64_t)getusedmemory {
  mach_port_t host_port = mach_host_self();
  mach_msg_type_number_t host_size = sizeof (vm_statistics_data_t) / sizeof (integer_t);
  vm_size_t page_size;
  vm_statistics_data_t vm_stat;
  kern_return_t kern;
  kern = host_page_size(host_port, &page_size);
  if (kern != kern_success) return -1;
  kern = host_statistics(host_port, host_vm_info, (host_info_t)&vm_stat, &host_size);
  if (kern != kern_success) return -1;
  return page_size * (vm_stat.active_count + vm_stat.inactive_count + vm_stat.wire_count);
}
// 用来存放内核和数据结构的内存,framework、用户级别的应用无法分配
- (int64_t)getwiredmemory {
  mach_port_t host_port = mach_host_self();
  mach_msg_type_number_t host_size = sizeof (vm_statistics_data_t) / sizeof (integer_t);
  vm_size_t page_size;
  vm_statistics_data_t vm_stat;
  kern_return_t kern;
  kern = host_page_size(host_port, &page_size);
  if (kern != kern_success) return -1;
  kern = host_statistics(host_port, host_vm_info, (host_info_t)&vm_stat, &host_size);
  if (kern != kern_success) return -1;
  return vm_stat.wire_count * page_size;
}
// 可释放的内存空间：内存吃紧自动释放，针对大对象存放所需的大块内存空间
- (int64_t)getpurgablememory {
  mach_port_t host_port = mach_host_self();
  mach_msg_type_number_t host_size = sizeof (vm_statistics_data_t) / sizeof (integer_t);
  vm_size_t page_size;
  vm_statistics_data_t vm_stat;
  kern_return_t kern;
  kern = host_page_size(host_port, &page_size);
  if (kern != kern_success) return -1;
  kern = host_statistics(host_port, host_vm_info, (host_info_t)&vm_stat, &host_size);
  if (kern != kern_success) return -1;
  return vm_stat.purgeable_count * page_size;
}

总结 。

以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作具有一定的参考学习价值，如果有疑问大家可以留言交流，谢谢大家对我的支持.

原文链接：http://www.jianshu.com/p/b23016bb97af 。

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