这是一个flash源文件，效果很好，测试平台为flash 8.0（如果提示问题请选择合适的版本试试），代码的效果是：课件实例代码-This is a flash source file, the effect is good, the test platform for flash 8.0 (if the question, please select the appropriate version to try), the effect of the code are: courseware sample code