| 2. | The signature of a program element such as a type , method , or field consists of a few components , including the element s name , access specification , base types , method arguments , exception specification , and so on 程序元素的签名,如类型、方法或者由几个组件组成的字段,这些组件包括元素名、访问规范、基本类型、方法参数、异常规则等。 |