Prototype API 参考手册:这份 API 文档只是一份参考手册，如果你想要学习如何使用 Prototype，或者想熟悉 Prototype 的某些特性，请参考教程。-Prototype API Reference Manual: The API documentation is a reference manual, if you want to learn how to use Prototype, Prototype, or would like to know some of t