Most coding errors that result in security vulnerabilities occur because developers make invalid assumptions when working with user input or because they do not fully understand the platform for which they are developing 导致安全漏洞的大多数编码错误都是由于开发人员在处理用户输入时所做的假定不合理,或者是由于他们对所针对的平台了解不够充分。
Object - based method has attracted great attention as a alternative to block - based method which can decrease coding errors and has better visual effects . furthermore , it can describe a scene in a structural way and open new areas of application 基于对象的编码方法能减少编码错误,有较好的视觉效果,能对场景进行结构性描述,能适应新的应用领域。