- (void)viewDidLoad
{
    GetWebInfo *getwebinfo=[GetWebInfo alloc];
    NSString *myparameters=[[NSString alloc] initWithString:[NSString stringWithFormat:@"Method=getSingleNewsbyId&new_id=%@",mynewid]];
    getwebinfo.parameters=myparameters;
    NSString *webReturnMessage=[getwebinfo dogetWebInfo];
    NSData* jsonData=[webReturnMessage dataUsingEncoding:NSUTF8StringEncoding];
    NSArray *keys =   [NSJSONSerialization
                       JSONObjectWithData:jsonData
                       options:NSJSONReadingMutableContainers
                       error:nil];
    //  NSLog(@"%@",keys);
    timelabel.text=[[keys objectAtIndex:0]valueForKey:@"time"];
    titlelabel.text=[[keys objectAtIndex:0 ]valueForKey:@"title"];
    contenttextview.text=[[keys objectAtIndex:0 ]valueForKey:@"contents"];
      NSInteger i=0;
    if(haveimage)
    {
        images=[[[keys objectAtIndex:0 ]valueForKey:@"images"] componentsSeparatedByString:@","];
        for (NSString *singleimage in images) {
            NSData *newimage=[Base64AndImageHelp mydataWithBase64EncodedString:singleimage];
            UIImage *newjiaban=[[UIImage alloc] initWithData:newimage];
            UIImageView *imageView = [[UIImageView alloc] init];
            [self.mainscrollview addSubview:imageView];
            imageView.frame = CGRectMake(20 ,170*i+100,280,150);//left ,top ,width ,height
            imageView.image=newjiaban;
            i++;
        }
    }
 if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0)
    {
        NSInteger newSizeH;
        float fPadding = 16.0; // 8.0px x 2
        
        CGSize constraint = CGSizeMake(contenttextview.contentSize.width - fPadding, CGFLOAT_MAX);
        
        CGSize size = [contenttextview.text sizeWithFont: contenttextview.font
                                    constrainedToSize:constraint
                                        lineBreakMode:UILineBreakModeWordWrap];
        newSizeH = size.height + 16.0 - 6;
        contenttextview.frame=CGRectMake(20 ,170*i+100,280,newSizeH);
        mainscrollview.contentSize=CGSizeMake(280, 100+170*i+newSizeH);
    }
    else
    {
        CGSize size = [[contenttextview text] sizeWithFont:[contenttextview font]];
        int length = size.height;  // 2. 取出文字的高度
        int colomNumber = contenttextview.contentSize.height/length;  //3. 计算行数
        contenttextview.frame=CGRectMake(20 ,170*i+100,280,colomNumber*22);
        mainscrollview.contentSize=CGSizeMake(280, 100+170*i+colomNumber*22);
    }

    
    [super viewDidLoad];
    // Do any additional setup after loading the view from its nib.
}