| 1. | Specifies the system identifier to be used in the dtd 指定dtd中要使用的系统标识符。 |
| 2. | Gets the operating system identifier for the current thread 获取当前线程的操作系统标识符。 |
| 3. | Gets the value of the system identifier on the entity declaration 获取实体声明上系统标识符的值。 |
| 4. | Declaration we see the public and system identifiers 声明中,我们接下来看到的是public和系统标识。 |
| 5. | Gets or sets the system identifier 获取或设置系统标识符。 |
| 6. | Gets the value of the system identifier on the doctype declaration 获取doctype声明上系统标识符的值。 |
| 7. | Gets the current operating system identifier of the active part of this 的活动部分的当前操作系统标识符。 |
| 8. | Characters in the doctype public identifier or system identifier Doctype公共标识符或系统标识符中的字符。 |
| 9. | Gets the value of the system identifier on the notation declaration 获取此表示法声明中的系统标识符的值。 |
| 10. | No rule dictates that the system identifier must refer to a local resource 没有规则规定系统标识符一定要引用本地资源。 |