// withMaxlength 為設(shè)定的固定值  ，圖片實際寬和高誰最大，誰的展示長度就為這個固定值，然后另一個按照她的縮放比例
+(CGSize)YLNineboxPhotoViewOfrealSize:(CGSize)realsize withMaxlength:(CGFloat)Maxlength
{
    CGSize size;
    CGFloat Proportion;//縮放比例
    CGFloat showH;//展示高度
    CGFloat showW;//展示寬度
    // 判斷寬和高 誰大
    
    // 寬大于高時以寬縮放的比例為
    if (realsize.height>realsize.width) {
        
        Proportion = Maxlength/realsize.height; ;
        
        showW = Proportion*realsize.width;
        
        showH = Maxlength;
        
        size = CGSizeMake(showW, showH);
    }else
    {
        
        Proportion = Maxlength/realsize.width; ;
        
        showH = Proportion*realsize.height;
        
        showW = Maxlength;
        
        size = CGSizeMake(showW, showH);
    }

    
    return size;
}