//在[UIDevice currentDevice]中的属性@property(nonatomic,readonly,strong) NSString    *name;              // e.g. "My iPhone"@property(nonatomic,readonly,strong) NSString    *model;             // e.g. @"iPhone", @"iPod touch"@property(nonatomic,readonly,strong) NSString    *localizedModel;    // localized version of model@property(nonatomic,readonly,strong) NSString    *systemName;        // e.g. @"iOS"@property(nonatomic,readonly,strong) NSString    *systemVersion;     // e.g. @"4.0"

#pragma mark-内存获取double usedMemory(){    task_basic_info_data_t taskInfo;        mach_msg_type_number_t infoCount = TASK_BASIC_INFO_COUNT;        kern_return_t kernReturn = task_info(mach_task_self(),                                                                                  TASK_BASIC_INFO,                                                                                  (task_info_t)&taskInfo,                                                                                  &infoCount);        if (kernReturn != KERN_SUCCESS) {        return NSNotFound;    }    return taskInfo.resident_size / 1024.0 / 1024.0;}