Writing dynamically loadable libraries
The exports clause
Library initialization code
Global variables in a library
Libraries and system variables
Exceptions and runtime errors in libraries
Shared-memory manager (Windows only)
编写动态可加载库
exports子句
库的初始化代码
库中的全局变量
库和系统变量
库中的异常和运行时错误
共享内存管理(仅适用于Windows)