A token is the smallest unit of parsed string that will have meaning to the parsingprogram.
标记是将对解析程序有意义的解析字符串的最小单位。
2
The output of the program is 1, indicating successful parsing.
程序的输出为1,表示成功完成解析。
3
Performance: Since the compiler is aware of the use of XML in a program, it can optimize the runtime representation, parsing, and XPath evaluation of XML.