方法

- (BOOL)isSuitableMachine:(int)targetPlatNum {
    int mib[2] = {CTL_HW, HW_MACHINE};
    size_t len = 0;
    char *machine;

    sysctl(mib, 2, NULL, &len, NULL, 0);

    machine = (char *) malloc(len);
    sysctl(mib, 2, machine, &len, NULL, 0);

    NSString *platform = [NSString stringWithCString:machine encoding:NSASCIIStringEncoding];
    NSLog(@"hhhhhhhhhhhhhh======%@",platform);
    free(machine);
    if ([platform length] > 6) {
        NSString *platNum = [NSString stringWithFormat:@"%C", [platform characterAtIndex:6]];
        if([platform containsString:@"iPhone"]){
            NSArray *array = [platform componentsSeparatedByString:@","];
            NSString *str = array[0];
            platNum = [str substringWithRange:NSMakeRange(6, str.length-6)];
        }
        return ([platNum intValue] >= targetPlatNum);
    } else {
        return NO;
    }
}

調(diào)用

判斷是否是6以上手機

[self isSuitableMachine:7]

判斷是否是5以上手機

[self isSuitableMachine:5]